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Photos, video and music 88 tools

Images & Photos 49 tools

Compress to target size Shrink a photo under a maximum size (e.g. 200 KB), handy for forms and portals. Invert colors (negative) Turn any photo into a negative in one click, great for scanned film too. Blur photo Blur an image with an adjustable slider, perfect for soft backgrounds. Photo watermark Add a text watermark to photos: position, size, color, and opacity. Add border to photo Add a colored border or polaroid-style frame to any photo and download it. Merge images Combine several photos into one: side by side, stacked, or in a grid. Card centering calculator Upload a photo of a card: it measures the borders and gives you the centering (55/45, 60/40) and the top grade it allows. Hide the cert number on graded cards Load a photo of a graded card: the cert number, the barcode and the QR code are erased automatically. Stitch chat screenshots Stitch the screenshots of a chat into one image: the repeated part goes away, the bars stay once. Extract images from PDF and Office Pull the real photos out of PDF, Word, PowerPoint and Excel: identical JPEGs and lossless PNGs, also as a ZIP. Add the date to photos Stamp the real date of the shot, read from the EXIF, on your photos, like old film cameras did. Cover data in a screenshot Cover account numbers, names or addresses with solid boxes: the pixels underneath are replaced. Straighten a document From a skewed photo to a straight sheet: mark the four corners and the document becomes a rectangle, in black and white too. Read a QR code Load the photo, paste the screenshot or point the camera: out comes what is inside the code, Wi-Fi password included. Photo EXIF viewer Camera, shutter, aperture, ISO, date and GPS position of a shot ND filter calculator The right time for long exposures Depth of field Sharp zone and hyperfocal for any lens ID photo Crop to 35×45 mm and print 8 photos on 4×6" SVG to PNG Convert an SVG file to a PNG image Base64 to image Paste a Base64 string to preview the decoded image and download it as a file. Black & white photo Convert photos to black and white with an adjustable intensity slider. Brightness & contrast Fix dark or flat photos: brightness, contrast and saturation sliders. Carousel splitter Split a panoramic photo into 2 or 3 equal slices for a seamless carousel. Compress image Shrink JPG, PNG and WebP photos in your browser with no visible quality loss. Convert image (JPG/JPEG, PNG, WebP) Between PNG, JPG, WebP and AVIF, even from iPhone HEIC, in a moment. Convert HEIC to JPG Turn iPhone HEIC photos into JPG or PNG, readable everywhere. Transparent background Make a solid-color background transparent and download a PNG with transparency. Image to text (OCR) Recognize text from a photo, a screenshot or a scanned PDF, in English, Spanish or Italian. Crop image Crop photos to 1:1, 4:3, 16:9, 9:16 or freeform ratios and download the result. Drawing whiteboard Free online whiteboard: draw with mouse or touch, erase and save as PNG. Extract colors from photo Get the dominant color palette of any image with HEX codes copied in one click. Favicon generator Generate favicon.ico and 16 to 180 px PNG favicons from one image, with a ready HTML snippet. Image size & info Check pixel dimensions, megapixels, aspect ratio and file size of any photo. Image to Base64 Convert an image to a Base64 data URI with ready-made HTML and CSS snippets. Meme generator Add classic top and bottom captions to any image and download your meme. Pixelate image Pixelate a whole photo for a retro pixel-art look or to make it unrecognizable. Placeholder image Create custom PNG placeholders: your own size, colors and text. Remove metadata Strip EXIF data and GPS location from photos before sharing them. Resize image Resize any image to exact pixels or ready-made social media sizes. Images to PDF Turn JPG and PNG photos into a PDF, even several images into one document. PDF to images Convert each page of a PDF into a JPG or PNG image to download. Add text to a photo Add text or a watermark to a photo: color, outline and position of your choice. Round profile photo Crop a photo into a circle with a transparent background and optional border. Quote image maker Turn a quote into a square image on a colored background for social media. Rotate & flip image Rotate photos 90, 180 or 270 degrees or flip them, then download in the same format. Rounded corners Round image corners up to a full circle and export a transparent PNG. Sepia filter Apply a warm vintage sepia tone to any photo, with adjustable intensity. Signature maker Draw your signature with mouse or finger and download a transparent PNG. Square photo (no crop) Make any photo square without cropping: color borders or blurred background.

See all 49 tools in Images & Photos

Video 15 tools

Compress video Shrink a video right in your browser, without uploading it online. Extract audio from video Download a video's audio track as MP3 or M4A, with your choice of quality. Trim video Choose start and end and download just the part you need, without recompressing it when possible. Check your subtitles Characters per second, lines too long, overlapping cues: can the subtitles actually be read? Video bitrate and size How big the export will be, what bitrate to stay under a limit, and how many minutes fit on a card. What your video really is True frames per second, variable frame rate, rotation, codec and bitrate: what you need to know before editing it. Video loudness (LUFS) Measure the real loudness of your video and see how many dB you are off for YouTube, TikTok or Spotify. Subtitles to transcript Turn an .srt or .vtt file into readable text: times gone, and the caption repetitions removed. Video for AI chats Turn a video into frame grids with printed times and a context text to paste into an AI chat. Timecode calculator Timecode to frames and seconds, add, subtract and change frame rate, drop frame included. Extract a frame from a video Scrub to the exact moment and save it as a JPG or PNG at the video real resolution. Subtitle sync and converter Shift or stretch the timing of an .srt or .vtt file and convert between the two formats. Webcam test Does your webcam work? Try it now Convert video to MP4 Turn MOV, WEBM, AVI, MKV or a GIF into an MP4 that plays everywhere, with or without the audio, in your browser. Video to GIF Turn a video clip into an animated GIF, with your choice of duration and size.

See all 15 tools in Video

Audio & Voice 12 tools

See all 12 tools in Audio & Voice

Music 12 tools

See all 12 tools in Music

Writing and work 156 tools

Text 72 tools

Remove HTML tags Strip HTML tags and decode entities: get clean plain text in one click. Tabs to spaces Moves every TAB to its column with 2, 4 or 8 spaces, like an editor. Lorem Ipsum Generator Placeholder text in paragraphs, sentences or words, copied in one click. Leet speak translator Convert text to leet speak (1337) with two levels, or decode it back. Email extractor Find every email address in a text: deduplicated list ready to copy. Text compare Compare two texts line by line with differences highlighted in red and green. How readable is a text Gulpease index (0-100) tuned for Italian: tells if a text reads clearly, which education level it suits and which sentences to shorten. What the AI changed A word-by-word comparison between your text and the AI's answer, with the changed numbers and dates on top. Split a long text for AI Text too long for one message? It is cut into numbered parts where a paragraph ends, and put back together they are identical. Stitch text copied from a PDF Remove the line breaks that fall mid-sentence: lines stitched, split words rejoined and page headers gone. Strip markdown and invisible characters Removes asterisks and hashes, and shows you the characters you cannot see first. Anonymize a text (and restore it) Swaps emails, IBANs and codes for placeholders, then puts them back in the AI answer. Fix broken characters (mojibake) From café back to café: repairs mangled accents in a text or a file. Compare two lists Only in the first, only in the second, in both. Three copyable lists, order does not matter. Editorial pages Characters and 1500/1800/2000 pages, for translators. Reading time Minutes to read a text, silently and aloud. Alternating case aLtErNaTiNg upper and lower, mocking effect. Remove indentation Strips spaces and tabs at the start of lines. Spaced text A space between each letter, for bios and social. camelCase → snake_case Converts identifiers between the two formats. snake_case → camelCase Converts identifiers between the two formats. Sum a list of numbers Sum, average, count, minimum and maximum. Sort numbers A list of numbers from smallest to largest. Sort lines by length From the shortest line to the longest. Extract phone numbers All phone numbers in a text, one per line. Capitalize each word A capital letter on every word, for titles. Shorten lines Trim each line to the length you choose (40 characters by default) with an ellipsis. Sort words Sort all the words of a text alphabetically. Lines to bullet list Add a • bullet at the start of each line. Reverse lines Flip the order of the lines: the last becomes the first. Extract mentions Find all @mentions in a text, without duplicates. Extract hashtags Find all #hashtags in a text, without duplicates. Unique words Alphabetical list of the distinct words in a text, no duplicates. Sentence case Lowercase with a capital at the start of each sentence. Swap case Swap uppercase and lowercase of every letter. Text on one line Join multiple lines into one, no line breaks. Remove numbers Strip numbers from a text, whole: digits, separators and sign, even ² and ½. Remove punctuation Strip commas, periods and brackets from text: symbols like € stay and words don't get glued together. Acronym generator Build an acronym from any phrase: compact (NASA) or dotted (N.A.S.A.). Add line numbers Number every line of text or code: 1. 1) or 001 format, custom start. Anagram generator Generate every anagram of a word and check whether two words are anagrams. Caesar Cipher Encrypt and decrypt messages with an adjustable 1-25 shift and ROT13 preset. Case converter Convert text to UPPERCASE, lowercase, Title Case or Sentence case in one click. Extract numbers from text Find every number in a text and instantly get the list, sum, and average. Fancy text generator Turn text into bold, italic, script, circled and other Unicode styles. Find and replace Replace every occurrence of a word or phrase in one click, with match case option. Hashtag generator Turn words and phrases into clean hashtags with a live Instagram limit counter. HTML entity encoder Convert special characters to HTML entities and back, in one click. Initials extractor Get initials and monograms from a list of names, one per line, ready to copy. Link extractor Extract all http and https links from a text, deduplicated with counters. Markdown Preview Write Markdown and see a live preview: headings, lists, links and code. Markdown Table Generator Build Markdown tables from a grid: aligned code ready to copy. Morse code translator Translate text to Morse code and back, with audio playback and a full chart. Motivational quotes Famous quotes and original sayings: a boost of motivation with every click. NATO phonetic alphabet Spell words letter by letter with NATO (Alfa, Bravo) and Able Baker alphabets. Palindrome checker Check whether a word or sentence reads the same forward and backward. Random words Draw random English nouns for brainstorming, party games, and creative ideas. Remove accents Turn accented letters into plain ones: é to e, ü to u. Great for URLs and file names. Remove blank lines Delete empty and whitespace-only lines from any text and copy the clean result. Remove duplicate lines Delete repeated lines from any list, keeping the first occurrence of each. Remove emojis Strip every emoji from a text and see how many were removed. Remove extra spaces Collapse double spaces and trim tabs and spaces from every line. Reverse text Flip a text backwards: reverse every character or just the word order, then copy. Small caps text Turn text into Unicode ꜱᴍᴀʟʟ ᴄᴀᴘꜱ to copy into bios, posts and messages. Sort lines Sort text lines A-Z, Z-A, numerically, randomly, or reverse the list. Text repeater Repeat text up to 10,000 times with new line, space, or comma separator. Text to Binary Convert text to UTF-8 binary code and back, with input error checking. Upside down text Flip your text upside down with Unicode characters, ready to copy anywhere. URL slug generator Turn any title into a clean, SEO-friendly URL slug with live preview. Word Counter Words, characters, sentences, paragraphs and reading time in real time. Word frequency See your most used words with counts and percentages, stop words excluded. Word scrambler Shuffle the words or lines of a text into random order with one click.

See all 72 tools in Text

Productivity 50 tools

Organize PDF Reorder, delete and rotate the pages of a PDF by dragging them, then download. To-do list Simple to-do list: add, check off, and reorder tasks, saved in your browser. PDF to Word Turn a PDF into an editable Word file: paragraphs rejoined, real headings, lists and tables. What file is this? Find out what a file really is from its bytes: the right extension, disguised programs and what opens it. Merge front and back scans The PDF of the fronts and the one of the backs, last sheet first, become one document in the right order. Your CV in PDF Type your CV and out comes a clean PDF, without uploading it to any website. Make a scanned PDF searchable A scanned PDF becomes searchable: the text can be selected and copied, and it looks the same. Add to calendar (.ics) Type the appointment and out comes an .ics file that opens in any calendar. Open a RAR or a 7z Drop a .rar or a .7z and see what is inside: download what you need, in your browser. Clean up a PDF See what travels with your PDF (author, attachments, comments) and download the same file without it. Compare two tables Two versions of the same table: rows added, gone and cells changed, with old and new. Create a password-protected ZIP Put your files in a ZIP protected with 256-bit AES encryption, without uploading them anywhere: all in your browser. Remove the password from an Office file You have the password and want a file that opens without it, or need to remove read-only. All in your browser. Compress an Office file Recompress the photos inside a .docx, .xlsx or .pptx: the text stays identical, all in your browser. Extract tables from a PDF Load a PDF and pull its tables into the right columns, to copy into Excel or download as CSV. All in the browser. Multiple PDF pages per sheet Load a PDF and get one with 2, 4, 6 or 9 pages per sheet, to print handouts and slides saving paper. All in the browser. Open a .vcf address book See every contact in a .vcf file without importing them, search them and download them as CSV for Excel. Search a word in many PDFs Pick all the PDFs at once and search inside: it tells you which file, which page and the sentence around it. Open a .pptx presentation Read the slides in your browser, with the speaker notes, the tables and the pictures. .odp too. Split a PDF by size The portal takes 10 MB and your PDF is 34: split it into parts that all stay under the limit. Open an .epub ebook Read an .epub in your browser: cover, chapters, resizable text, and save it as plain text. Write on a PDF Fill in a PDF form without printing it: tap the spot, type, add tick marks and download. Open an Outlook .msg file Read an Outlook message without Outlook: sender, date, text and attachments, and save it as .eml. Remove a PDF password The PDF that asks for a password, or will not let you copy and print, becomes a normal PDF again. You need the one you already know. Clean up an Office file See what a Word, Excel or PowerPoint file carries with it, and strip the personal data before you send it. Anonymise a spreadsheet (and put the data back) Mask the names, emails and IBANs of an Excel column by column, then put the real values back in the answer. Markdown tables to Excel Finds every table inside an answer and gets it into your spreadsheet with one paste. Markdown to Word Paste the markdown of an answer and download a real Word document, with real headings. Price quote maker Fill in the lines, VAT, discount and withholding, then download a tidy PDF quote. Bulk file renamer Build the new name out of blocks, check the preview and download everything renamed in one ZIP. Compare two PDFs See page by page what was added, removed or reworded between two versions. Open an EML file Read a saved email with sender, date and text, and pull out its attachments. PDF booklet Reorder the pages to print a folded booklet, two pages on each sheet. Open a ZIP file See what is inside an archive and pull out only the file you need. Open a Word file (DOCX) Read a .docx or .odt without Office, with headings, lists and tables. Redact a PDF Cover account numbers, addresses or signatures with a black box and download a PDF where that text is truly gone. Shift calendar Which shift am I on? Your cycle on a calendar Sign PDF Draw your signature and place it in the PDF Email signature Create a professional email signature and copy it ready for Gmail, Outlook and Mail. Merge PDF Merge several PDF files into a single document, in the order you choose. Split PDF Split a PDF into several files (one per page, every so many pages or in groups) or extract only the pages you need. Compress PDF Reduce the size of a PDF, ideal for scans and image-heavy documents. Rotate PDF See every page, turn only the crooked ones and download the PDF set straight. Watermark PDF Add a text watermark (e.g. «CONFIDENTIAL») to every page of a PDF. Page numbers on PDF Add page numbers choosing position, format and the number to start from. Extract text from PDF Get all the text from a PDF, ready to copy or download as .txt. Online notepad Notepad with autosave in your browser; download your notes as a .txt file. Tally counter Click counter with keyboard shortcuts and multiple named counters, saved in your browser. What should I eat tonight? A random pick from 82 dinner ideas: pasta, meat, seafood, veggie, pizza and quick. Yes or no? A button that decides for you: random yes or no with suspense, maybe mode and stats.

See all 50 tools in Productivity

Study & school 23 tools

Grade scale converter Convert a grade between /10, /30, /100 scales. Multiple choice test maker Type the questions, mark the right answer with an asterisk: shuffled versions A, B, C, D to print and the answer key. Flashcards for Anki and print From a list of questions and answers: the Anki file, the Quizlet text and double-sided cards to print. Solve an inequality Solve the inequality and see the solution set, with the steps and the number line. Squared and lined paper to print Squares, lines, staves and isometric: pick the size and print, with no adverts. Limiting reagent Which reactant runs out first, how many grams of product come out and how much is left. Solve an expression step by step Type the expression as it is in the book: out come all the steps and the result as an exact fraction. Timeline from dates Paste a list «1492 | Discovery of America», BC dates too, and get a timeline in SVG or PNG to print. Make a word search Paste the words and out comes a word search to print as PDF, with the solution apart. Size and difficulty of your choice. Balance a chemical equation Write the reaction and out come the smallest whole coefficients, with the atom count that proves it adds up. Concept map from an outline Write an indented outline and out comes a tree diagram to download and print. Line through two points The equation of the line through two points, with slope, distance, parallel, perpendicular and a graph. Citations and bibliography Fill in the source details and get the bibliography entry and the in-text citation in APA, MLA, Chicago and IEEE. Test score to grade Turn test points into a grade, with your own pass threshold and the full table to hand out. Triangle solver From three values (SSS, SAS, ASA, AAS, SSA) get sides, angles, area, heights and a scale drawing, ambiguous case included. Systems of equations Solves a 2x2 or 3x3 linear system step by step, in exact fractions. Truth tables With intermediate steps and equivalence Molar mass Molecular weight of any chemical formula SI prefixes kilo, mega, milli, micro… with power of ten. Greek alphabet Greek letters: uppercase, lowercase, name and sound. Periodic table Search chemical elements: symbol and atomic number. Weighted average Average of grades/values with different weights or credits. Grade I need The grade needed on the next exam for your target average.

See all 23 tools in Study & school

Social & creators 11 tools

See all 11 tools in Social & creators

Numbers and money 127 tools

Calculators 54 tools

Mortgage calculator Monthly mortgage payment, total interest and 12-month amortization schedule. Pythagorean Theorem Find the hypotenuse or a leg of a right triangle, plus perimeter and area. GCF and LCM Greatest common factor and least common multiple with prime factorization steps. Square & cube root Square and cube roots, perfect squares and cubes, nearest perfect squares. Completion percentage What % of a goal you're at, with a bar. Salary to hourly wage Convert monthly or annual salary to hourly wage and back, by weekly hours. Least squares line Paste two columns of data and get the line, R squared, the chart and a prediction. Scientific calculator Write the whole expression, with brackets, powers, roots and sines, and see how it was read. 3D print cost What a print really costs (and what to charge) Hourly project cost Hours × hourly rate = project cost. Add hours and minutes Add several durations in hours:minutes format. Difference between two times Hours and minutes between a start and end time. Round a number Round to as many decimals as you want. Days lived How many days, weeks and months you've lived. Yearly subscription cost How much a monthly cost adds up to per year. Split into installments The amount of each installment from a total. Increase or decrease by % A value increased and decreased by a percentage. Fraction of a number How much a fraction (e.g. 3/4) of a number is. Fraction to decimal The decimal number equivalent to a fraction. Decimal to fraction Turn a decimal into its reduced fraction. Fibonacci sequence Generate the Fibonacci numbers, exact even when large. Times table The multiplication table of a number from 1 to 10. Logarithm The logarithm of a number in any base. Power A base raised to an exponent, even negative or decimal. Factorial (n!) The factorial of a number, exact even for big numbers. Margin and markup Margin, markup and profit from cost and selling price. Percentage change Increase or drop in % between a start and end value. Price per kg Compare value from price and weight. Aspect ratio The aspect ratio (16:9, 4:3…) from width and height. Tip calculator Tip, total and share per person splitting the bill. Area & Perimeter Area and perimeter of square, rectangle, triangle, circle, trapezoid, rhombus. Combinations & Permutations Compute nCr and nPr, with or without repetition, exact results for huge numbers. Compound interest Final balance, interest earned, and year-by-year growth with monthly deposits. Discount Calculator Find the sale price from a percent off, or the real discount from two prices. Electricity Cost See what an appliance costs to run: watts, hours and kWh price, per day and year. Mean, Median & Mode Paste numbers to get mean, median, mode, min, max, sum and count instantly. Percentage calculator Find X% of a number, percent of a total, and percentage change between two values. Prime factorization Factor any number into primes with exponents and step-by-step divisions. Prime numbers Check if a number is prime and list all primes up to 100,000. Quadratic Equation Solver Solve ax² + bx + c = 0 with discriminant, real or complex roots and full steps. Road Trip Gas Cost Estimate road trip costs: miles, MPG, gas price and tolls, split per passenger. Rule of 72 Years to double your money at a given rate, with the exact math shown too. Rule of three (proportions) Solve direct and inverse proportions: A is to B as C is to X, with steps explained. Savings goal How much to save each month to reach your goal, with or without interest. Simple interest Interest and final balance from principal, rate, and time, formula explained. Simplify Fractions Reduce fractions to lowest terms with steps, plus add, subtract, multiply, divide. Speed, Time & Distance Enter any two of speed, time and distance to get the third, with running pace. Split the Bill Split a restaurant bill with tip and reduced shares for kids or the guest of honor. Stacked discounts Final price after stacked discounts and the true total: 30% + 10% isn't 40% off. Standard Deviation Standard deviation and variance, population and sample, with formulas. University Grade Average Simple and weighted average of Italian 18–30 grades, plus base out of 110. VAT calculator Add or remove VAT with common European rates or a custom one. Instant results. Volume of solids Volume and surface area of cube, sphere, cylinder, cone, pyramid, and box. Work hours calculator Add up hours worked from clock-in, clock-out and breaks. Decimal hours too.

See all 54 tools in Calculators

Converters & Units 32 tools

Fuel economy converter Convert MPG (US/UK), L/100 km and km/L, and compute real-world gas mileage. Time unit converter Seconds, minutes, hours, days, weeks, months, and years, instant conversion. kW to HP converter Convert kilowatts, horsepower and metric horsepower (PS) instantly. Temperature converter Fahrenheit, Celsius and Kelvin in one click, with formulas and references. Clothing size converter US, UK, EU, IT and XS–XXL sizes for men and women, with clear charts. TV size calculator Width, height and area from a TV's diagonal inches, plus viewing distance. Battery capacity mAh ⇄ Wh, power bank charges, airplane rule Bra size Find your size from two tape measurements Model scale converter Convert real sizes to scale (1:87, 1:43…) Ring size Find the size from diameter or circumference Paper sizes A0–A7 Sheet dimensions in mm, cm, inches and pixels Download time How long it takes to download a file Illuminance converter lux, foot-candle, phot and other light units. Density converter kg/m³, g/cm³, g/L, kg/L, lb/ft³. Flow rate converter L/s, L/min, m³/h and other flow units. Power converter watt, kilowatt, metric hp, HP, BTU/h and kcal/h. Frequency converter hertz, kilohertz, megahertz, gigahertz, rpm. Torque converter newton meter, kgf·m, pound-foot and more. Force converter newton, kgf, pound-force and other force units. Angle converter Degrees, radians, and gradians in real time, with exact values in pi. Area converter Convert acres, square feet, hectares and m² with football-field comparisons. Data storage converter Convert bits, bytes, KB, MB, GB and TB in decimal and binary units. Energy converter Convert joules, calories, kcal, watt-hours, kWh and BTU in real time. Length converter Inches, feet, yards, miles, meters, cm and km converted in real time. Number Base Converter Convert numbers between binary, octal, decimal, hex and any base 2-36 live. Number to words Spell out any amount in words for writing checks, up to 999 billion. Pressure converter Convert PSI, bar, atm, pascals, kPa and mmHg, with tire pressure references. Roman numerals Convert Roman and Arabic numbers up to 3999, with error checking. Shoe size converter US, UK, EU sizes from foot length in inches or cm: men, women and kids. Speed converter Convert mph, km/h, knots and m/s in real time, with Mach number. Volume converter Convert gallons, liters, cups, pints, ml and cubic meters in real time. Weight converter Convert pounds, ounces, stone, kilograms and grams in real time.

See all 32 tools in Converters & Units

Dates & Time 23 tools

Timer Countdown timer with quick presets and an alarm sound when time is up. Current time Live clock with seconds, full date, ISO week number and day of the year. Monthly Calendar Any month's calendar with US federal holidays highlighted, ready to print. Date Difference Days, weeks, months and years between two dates, with business days only. Business days Count business days between two dates, skipping weekends and US federal holidays. Add Days to a Date Add or subtract days, weeks or months from a date, with a skip-weekends option. Season start dates Equinoxes and solstices of any year, to the minute Wedding anniversaries Silver, golden… which one are you celebrating? Sunrise and sunset What time the sun rises and sets Daylight saving time When the clocks change, with countdown Moon phases Today's moon, full moon and lunar calendar World clock What time it is now in cities around the world Age Calculator Exact age in years, months and days, days lived, and next-birthday countdown. Cat age in human years How old is your cat in human years? Veterinary chart with life stage. Day of the week Find what day of the week any date fell on: birthdays, anniversaries, history. Dog Age in Human Years Convert your dog's age to human years, with a size-based formula and chart. Event countdown Live countdown to any event, saved in your browser so it's there when you return. Leap year checker Check if any year is a leap year, with the rule explained and the next 10 listed. Pomodoro Timer Pomodoro technique: 25-minute focus blocks, automatic breaks and cycle counter. Stopwatch Online stopwatch with lap times, works accurately even in background tabs. Duration converter (hh:mm:ss) Convert hh:mm:ss to total seconds, minutes or hours and back, in real time. Unix Timestamp Live epoch time plus converter: timestamp to date and back, seconds or ms. Week number Today's ISO 8601 week number, or for any date, with weeks left in the year.

See all 23 tools in Dates & Time

Finance & money 18 tools

See all 18 tools in Finance & money

Home and health 74 tools

Health & Wellness 25 tools

Sleep cycle calculator Find the best time to go to bed or wake up at the end of a sleep cycle. Pregnancy week calculator Current week, trimester and estimated due date from your last period. Heart rate zones Your 5 training zones in bpm from your age, with the optional Karvonen method. HbA1c converter Convert HbA1c between mmol/mol and percent and get the estimated average glucose. Baby age Weeks, months and corrected age for preemies Guided breathing Box breathing and 4-7-8 with a visual guide Feels-like temperature How hot or cold it really feels Children's blood type Which blood type a child can inherit Growth percentiles Baby's weight and height: which percentile? Blood pressure values Is your blood pressure normal or high? Conception date Estimate conception from the due date. Medical unit converter Glucose, cholesterol and more: mg/dL ⇄ mmol/L. Child's future height Estimate adult height from the parents. Blood alcohol Estimate blood alcohol (Widmark formula). Waist-to-height ratio Belly fat indicator (target <0.5). Macronutrients Protein, carbs and fat in grams by goal. Calorie deficit Calories to lose weight and time to goal. BMI Calculator Body mass index from weight and height, with WHO category and healthy range. Ideal weight Healthy weight range from height and sex, with BMI range and the Lorenz formula. Body fat % Estimate your body fat percentage with the U.S. Navy method, using just a tape. Basal metabolic rate Resting (BMR) and maintenance calories from weight, height, age and activity. Daily calorie needs BMR and daily calorie needs (TDEE) with the Mifflin-St Jeor equation. Daily water intake Estimate from weight and activity: liters, 8-oz glasses, and water bottles per day. Steps to miles & km Convert steps to miles and km from your stride length, with approximate calories. Ovulation calculator Fertile days, ovulation and next period from your last period date.

See all 25 tools in Health & Wellness

Home & DIY 23 tools

Insulation savings Wall U-value layer by layer, the kWh and money insulation saves, and the payback in years. Knitting gauge: stitches, rows and yarn Turn your swatch into stitches to cast on, rows to work and balls to buy. Cutting plan How many bars you need for your cut list, with patterns, offcuts and waste. Hot water cost What a shower costs, how much energy the tank drinks and which size you need. Size your solar PV system How many kWp and panels your consumption needs, what it produces, how much you use on site and when it pays back. How many radiator sections From the heat a room needs to the number of sections, using the real output at your flow temperature. Cable size and voltage drop Voltage drop and the smallest cable for a run, with ampacity and maximum length. Firewood volumes, weight and kWh Stacked, loose and solid cubic metres turned into kilos and kWh, plus how much a season takes. Compare two energy offers Put two electricity or gas contracts side by side on comparable items and see the real yearly gap. How many bags of concrete From the size of the pour to the bags to buy, plus the site mix proportions. Air conditioner cost What an hour, a night and a whole season of air conditioning cost, from BTU and class. Heating cost comparison Pellets, gas, firewood, oil, LPG, electricity or a heat pump: what one kWh of heat really costs and the bill for a season. Dew point Condensation and mould: when they form at home Ohm's law calculator V, I, R and P: enter two, get the rest Resistor color code Read a resistor's value from its colors Staircase steps Ideal number of steps, riser and tread of a staircase. Slope calculator Slope in percent and degrees from rise and run. Room lumens How many lumens you need to light a room well. AC BTU calculator The right BTU and kW for the room's air conditioner. Room area & volume Area, volume, wall surface and perimeter of a room. Wallpaper calculator How many wallpaper rolls you need for a room. Tile calculator How many tiles you need for a floor or wall, waste included. Paint calculator How many liters of paint you need for a room.

See all 23 tools in Home & DIY

Cooking 17 tools

See all 17 tools in Cooking

Pets & animals 9 tools

See all 9 tools in Pets & animals

Out and about 41 tools

Sport & fitness 16 tools

See all 16 tools in Sport & fitness

Cars & motors 13 tools

See all 13 tools in Cars & motors

Travel 12 tools

See all 12 tools in Travel

Create and play 107 tools

Web & SEO Tools 45 tools

ASCII table ASCII codes 0-127 with decimal, hex and binary. Search and copy in one click. SHA Hash Calculator SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text, with instant comparison. Password strength checker Test how secure your password is: entropy and crack time, all in your browser. Regex Tester Test patterns and flags: highlighted matches, captured groups and replacements. Google preview (SERP) Will your title and description fit the results? What browser am I using Browser, version, OS, language and user agent: copy it all for tech support. CSV to SQL Turn a CSV into CREATE TABLE and INSERT for MySQL, PostgreSQL, SQLite and SQL Server, without losing leading zeros. SSL certificate decoder Expiry in days, covered names (SAN), key, fingerprints and chain order of a certificate or a CSR. JSON to TypeScript TypeScript interfaces or types and a JSON Schema from JSON, with optional fields worked out from every element. Repair JSON Fixes broken JSON from a chat, a log or a hand-written file and lists every change, even when cut off YAML to JSON Convert YAML to JSON and back, with errors on the right line and the values YAML 1.1 reads another way. Split a CSV that is too big Split a huge CSV into smaller files, with the header repeated and without loading it all. Cron expressions Type the cron expression and read in plain words when it runs, with the next runs. Subnet calculator (CIDR) From 192.168.1.0/24 to network, broadcast, hosts, mask and wildcard. IPv6 too, the host→prefix direction and splitting into subnets. Extract code from AI Out of an AI answer come the files, with the right name and all in one .zip. And the mangled characters fixed. CSV to Excel Open a CSV in Excel without losing leading zeros and without everything landing in one column. XML to JSON and back Convert XML to JSON or JSON to XML, with syntax errors pinned to line and column. Merge two CSV files Stack two CSV files realigning the columns, or match them on a key column like a VLOOKUP. Clean up a CSV Fix a messy CSV: separator, spaces, empty rows and columns, duplicates and numbers. File checksum (MD5, SHA-256) Compute MD5, SHA-1, SHA-256 and SHA-512 of a file and check it against the published value. Excel (XLSX) to CSV Open an .xlsx file without Office: pick a sheet and download it as CSV. Dead pixel test Check monitors and TVs full-screen Keyboard test Find broken keys in seconds HTML table generator Create HTML tables from your data px ⇄ rem converter Convert pixels to rem and em (CSS) WiFi QR code Guests connect to the WiFi with one scan. Base64 encoder & decoder Encode text to Base64 or decode it back, with full UTF-8 and emoji support. Click speed test How many clicks per second? 5 or 10 second CPS test with your personal best. CSS Minifier Minify CSS in one click: strips comments and whitespace, shows bytes saved. CSV to HTML table Paste CSV: get a live table preview and clean HTML table code to copy. CSV to JSON Turn CSV into a JSON array: delimiter auto-detected, copy or download free. Emoji list, copy and paste 1,906 emoji from the Unicode list, with search, categories and skin tone: one click copies it. JSON formatter & validator Format, minify, and validate JSON with precise errors and key sorting JSON to CSV Convert a JSON array to CSV with your chosen delimiter and instant download. JWT decoder Decode a JWT's header and payload with readable dates and expiry warning. Key code tester (keycode) Press a key to see key, code and keyCode with modifiers and history. Reaction time test Wait for green and click: reaction time in ms, averaged over 5 attempts. robots.txt Generator Build your robots.txt with Allow/Disallow rules, sitemap and presets. Screen resolution checker Live viewport, screen resolution, pixel ratio, orientation and color depth. Special characters to copy Arrows, math symbols, currencies, check marks and stars to copy in one click. Typing speed test Measure your words per minute in 60 seconds: accuracy, errors, personal best. URL encode & decode Percent-encode or decode text, plus inspect any URL's query parameters. UTM Link Builder Create tracked campaign URLs with UTM parameters, properly encoded. UUID Generator Generate secure random UUID v4s: quantity, uppercase, with or without dashes. XML sitemap generator Paste your site's URLs and download a valid sitemap.xml, ready for Google.

See all 45 tools in Web & SEO Tools

Generators 27 tools

Lucky numbers Random Powerball, Mega Millions and classic lotto picks. Just for fun. QR code generator Create QR codes from a link or some text and download them as PNG or SVG. PIN Generator Random secure PINs from 4 to 8 digits, in bulk, skipping obvious codes. Coupon code generator Create up to 500 unique random discount codes in one click, copy or export as CSV. Barcode generator Generate an EAN-13, EAN-8, UPC-A or Code-128 barcode and download it as PNG or SVG for labels. Cocktail generator A random cocktail with name and ingredients. Chinese zodiac Your animal and element from your birth year. Zodiac sign Your sign from your date of birth, with element. Name generator Names for company, band, channel, domain, fantasy, username. Random date generator A random date, with the day of the week. Book title generator An evocative title for a novel or a story. Gift idea generator A random gift idea for any occasion. Choose for me Write the options, chance decides for you. Slogan generator A catchy slogan for brands and projects. Random emoji A random emoji with one click, for games and challenges. Deep questions Random questions for reflection and real conversations. Icebreaker questions Random questions to start a conversation. Truth or Dare Random questions and dares for evenings with friends. Excuse generator A random believable excuse, for fun, with one click. Baby name ideas 400+ boy and girl names, filtered by gender, first letter and length. Passphrase generator Create a secure, memorable passphrase from random words with a strength estimate. Password generator Strong, random passwords generated on your device, never sent anywhere. Project name generator Pronounceable names for brands and projects, with variations from your keywords. Random name picker Draw one or more random winners from a name list, with animation and history. Random number generator Random numbers in any range: quantity, unique or repeatable, sorted. With copy. Random team generator Split a list of names into fair random teams, with reshuffle and copy. Test credit cards Fake Luhn-valid card numbers for testing payment forms and software.

See all 27 tools in Generators

Games 21 tools

Hangman Classic hangman with word categories, clickable keyboard, drawing and score. Times Tables Quiz 10-question multiplication quiz for kids: tables 2-10 or mix, optional timer. Snake The classic snake game: arrows, WASD or swipe, rising speed and high score. Tic Tac Toe Classic tic-tac-toe vs the computer or 2 players on one screen. Guess the word Wordle-style game in Italian: 5 letters, 6 tries. Minesweeper Reveal the cells while avoiding the mines. Card draw probability Your odds of drawing a card: opening hand, turn by turn and mulligan for Magic, Pokémon and Yu-Gi-Oh. Connect 4 Line up four discs against the computer. General knowledge quiz 10 multiple-choice questions, with score. Riddles Fun riddles with an answer to reveal. Joke generator A random joke with a surprise punchline. Would you rather…? Impossible dilemmas between two options, for fun. Tournament bracket A single-elimination bracket with random matchups. Secret Santa Draw Secret Santa with no paper slips. Online scoreboard Keep score for multiple players with +/-. Coin flip Flip a virtual coin: heads or tails with animation, stats and longest streak. Dice roller Roll 1 to 6 virtual dice with automatic totals, roll history and animation. Emoji Memory Match all emoji pairs on a 4x4 or 6x6 grid, with moves, timer and best score. Guess the Number Guess a number from 1 to 100 with higher/lower hints, or let the computer guess. Rock Paper Scissors Play rock paper scissors against the computer with live score tracking. Spin the Wheel Type your options, spin the wheel, and let chance pick a winner.

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Colors & Design 14 tools

See all 14 tools in Colors & Design