A–Z index
All 300+ tools in alphabetical order, with a line on what each one is for.
#
- .env to JSON Developer — Convert environment-variable files into JSON, and back again.
A
- Add Border to Image Image — Frame a photo with a solid border in any color and thickness.
- Add Line Numbers Text — Prefix every line with a number, in whatever style you need.
- Add or Subtract Days Calculators — Find the date a set number of days, weeks or months away.
- Add Page Numbers to PDF PDF — Stamp page numbers onto a PDF, positioned and styled how you like.
- Add Prefix and Suffix Text — Wrap every line with text — quotes, commas, tags, bullets.
- Add Watermark to Image Image — Stamp text across a photo — once, or tiled across the whole thing.
- Add Watermark to PDF PDF — Stamp DRAFT, CONFIDENTIAL or any text across every page.
- Age Calculator Calculators — Exact age in years, months, days — and every other unit going.
- AI Background Remover Image — Cut a subject out of any background with a real segmentation model — running on your own device, not a server.
- AI Text Cleaner AI & Writing — Strip the giveaways from AI-written text: em dashes, curly quotes, hidden characters and the phrases models overuse.
- AI Writing Tells Analyzer AI & Writing — Measure the stylistic markers associated with AI writing — dash density, sentence uniformity, overused phrases. Not a detector.
- aLtErNaTiNg CaSe Text — Turn text into mocking, alternating capitals.
- Angle Converter Units — Convert degrees, radians, gradians and turns.
- Area Calculator Calculators — Area and perimeter for rectangles, circles, triangles and more.
- Area Converter Units — Convert square meters, feet, acres, hectares and more.
- Aspect Ratio Calculator Calculators — Scale dimensions while keeping the same proportions.
- Atbash Cipher Text — Mirror the alphabet — A becomes Z, B becomes Y. Its own inverse.
- Audio File Info Media — Inspect duration, sample rate, channels and peak levels of an audio file.
- Audio to WAV Converter Media — Convert MP3, M4A, OGG, FLAC and more into uncompressed WAV.
- Audio Trimmer Media — Cut a section out of an audio file and export it as WAV.
- Average Calculator Calculators — Mean, median, mode, range and totals from a pasted list of numbers.
B
- Background Remover Image — Click a background color to erase it, with tolerance and edge feathering you control.
- Base32 Decoder Developer — Decode Base32 back to text, ignoring padding, spaces and case.
- Base32 Encoder Developer — Encode text as Base32 — the encoding used for TOTP secrets and case-insensitive identifiers.
- Base64 Decoder Developer — Decode Base64 back to readable text, URL-safe input included.
- Base64 Encoder Developer — Encode text to Base64, with a URL-safe option.
- Batch Image Converter Image — Resize, compress and convert dozens of images at once, then download them as a ZIP.
- Bitwise Calculator Developer — AND, OR, XOR, NOT and shifts on two numbers, shown in every base.
- Black and White Image Converter Image — Turn a color photo black and white — grayscale, high contrast or true 1-bit.
- Blur Image Image — Soften an image, or blur it heavily to obscure something.
- BMI Calculator Calculators — Body mass index in metric or imperial, with the standard categories.
- Body Fat Calculator Calculators — Estimate body fat percentage using the US Navy tape method.
- BPM Tapper Media — Tap along to a track to find its tempo in beats per minute.
- Break-Even Calculator Calculators — How many units you need to sell before you start making money.
- Brightness and Contrast Image — Fix a photo that came out too dark, too bright or too flat.
C
- Caesar Cipher Text — Shift every letter by a chosen amount to encode or decode a message.
- Calorie and TDEE Calculator Calculators — Daily calorie needs from your BMR and activity level.
- camelCase Converter Text — Turn any phrase into camelCase for variables and keys.
- Capitalize Every Word Text — Put a capital letter at the start of every single word.
- Car Loan Calculator Calculators — Work out car finance payments including trade-in, deposit and sales tax.
- Character Counter Text — Count characters with and without spaces, plus limits for common platforms.
- Character Frequency Counter Text — Count how often each character appears — handy for puzzles and ciphers.
- Chat Transcript Formatter AI & Writing — Turn a copied chat conversation into clean markdown, JSON messages, or a plain transcript.
- Circle Crop Image Image — Crop a photo into a perfect circle with a transparent background.
- Coin Flip Generators — Flip a virtual coin — once, or a thousand times.
- Color Contrast Checker Color — Check text and background contrast against the WCAG accessibility standards.
- Color Converter Color — Convert a color between HEX, RGB, HSL, HSV and CMYK.
- Color Mixer Color — Blend two colors and see every step between them.
- Color Name Finder Color — Find the closest named CSS color to any hex code.
- Color Palette Generator Color — Build harmonious palettes from one base color.
- Color Picker Color — Pick a color with sliders and read it back in every format at once.
- Compound Interest Calculator Calculators — See how savings grow with regular contributions and compounding.
- Compress PDF PDF — Shrink a heavy PDF by re-rendering its pages at a lower resolution.
- CONSTANT_CASE Converter Text — Turn any phrase into SCREAMING_SNAKE_CASE for constants and env vars.
- Convert Image to JPG Image — Turn any image your browser can open — PNG, WEBP, AVIF, GIF, BMP, SVG — into a JPG.
- Cooking Measurement Converter Units — Convert cups, tablespoons, teaspoons, milliliters and fluid ounces.
- Credit Card Payoff Calculator Calculators — See how long a card balance takes to clear, and what paying more would save.
- Cron Expression Parser Developer — Explain a cron schedule in plain English and preview the next run times.
- CSS Border Radius Generator Color — Shape corners individually and copy the border-radius CSS.
- CSS Box Shadow Generator Color — Dial in a box shadow visually and copy the CSS.
- CSS Clamp Generator Color — Generate a fluid clamp() that scales smoothly between two viewport widths — no media queries.
- CSS Gradient Generator Color — Design a linear or radial gradient and copy the CSS.
- CSS Minifier Developer — Strip comments and whitespace from CSS and see the saving.
- CSV Column Extractor Convert — Pull a single column out of CSV data as a clean list.
- CSV Delimiter Converter Convert — Swap between comma, semicolon, tab and pipe separated data.
- CSV to JSON Convert — Convert CSV or TSV into clean JSON, with the delimiter detected for you.
- CSV to Markdown Table Convert — Turn CSV data into a Markdown table for READMEs, docs and issues.
- CSV to SQL Insert Convert — Generate INSERT statements from CSV data, ready to paste into a client.
- cURL to Fetch Converter Developer — Paste a curl command and get the equivalent JavaScript fetch call.
D
- Data Storage Converter Units — Convert bytes, kilobytes, megabytes, gibibytes and the rest.
- Data Transfer Rate Converter Units — Convert Mbps, MB/s, Gbps and the rest — and stop confusing bits with bytes.
- Date Difference Calculator Calculators — Count the days, weeks and months between two dates.
- Delete PDF Pages PDF — Remove unwanted pages and keep everything else.
- Dice Roller Generators — Roll any number of dice with any number of sides, plus a modifier.
- Discount Calculator Calculators — Work out a sale price, the saving, and stacked discounts.
- dot.case Converter Text — Turn any phrase into dot.case for config keys and namespaces.
- Duotone Image Image — Map an image onto two colors for a bold editorial look.
- Duplicate Word Finder Text — Catch accidentally repeated words — the the, and and — that spellcheckers walk straight past.
E
- Edit Diff Summary AI & Writing — Compare a draft with its rewrite and see exactly what changed, word by word.
- Electricity Cost Calculator Calculators — What an appliance actually costs to run, per day, month and year.
- Em Dash Remover AI & Writing — Replace em dashes with commas, periods or plain hyphens — the fastest way to make AI text stop looking like AI text.
- Emoji Remover AI & Writing — Strip emoji from text, including the multi-part sequences that other tools leave half-deleted.
- Energy Converter Units — Convert joules, calories, kilowatt-hours and BTU.
- Extract Email Addresses Text — Pull every email address out of a block of text.
- Extract Numbers Text — Pull every number out of text, and total them up.
- Extract PDF Pages PDF — Pull specific pages out of a PDF into a new document.
- Extract URLs Text — Pull every link out of a block of text.
F
- Fancy Text Generator Text — Turn plain text into bold, italic, script and monospace Unicode styles.
- Favicon Generator Image — Generate every favicon size from one image, plus the HTML to drop in.
- File Hash Checker Developer — Verify a download by checking its MD5, SHA-1 and SHA-256 — without uploading it.
- Find and Replace Text — Swap text across your whole document, with optional regex.
- Fraction Calculator Calculators — Add, subtract, multiply and divide fractions, simplified automatically.
- Frequency Converter Units — Convert hertz, kilohertz, megahertz, gigahertz and RPM.
- Fuel Cost Calculator Calculators — Work out what a journey costs in fuel, and split it between passengers.
- Fuel Economy Converter Units — Convert MPG, liters per 100 km and kilometers per liter.
G
- GCD and LCM Calculator Calculators — Greatest common divisor and lowest common multiple of any list of integers.
- Google SERP Preview Web & SEO — See how your title and description will look in search results.
- GPA Calculator Calculators — Work out a weighted grade point average from your courses.
- Grade Calculator Calculators — Turn a score into a percentage and a letter grade.
H
- Hash Generator Developer — Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text.
- HEX to RGB Converter Color — Convert one hex code or a whole list into RGB values.
- Hex to Text Converter Developer — Turn hexadecimal bytes back into readable text, whatever separators they arrived with.
- HMAC Generator Developer — Sign a message with a secret key using HMAC-SHA256, 384 or 512.
- Hreflang Tag Generator Web & SEO — Generate a valid, reciprocal set of hreflang tags for a page in several languages.
- HTML Entity Decoder Developer — Turn HTML entities back into the characters they represent.
- HTML Entity Encoder Developer — Escape characters so HTML renders them as text instead of markup.
- HTML Minifier Developer — Remove comments and collapse whitespace in HTML markup.
- HTML Table to CSV Convert — Paste an HTML table and get clean CSV, Markdown or JSON out of it.
- HTML to Markdown Convert — Convert HTML back into tidy Markdown source.
- HTML to Plain Text Developer — Strip every tag and get just the readable text out of HTML.
- HTTP Status Code Lookup Web & SEO — Look up what any HTTP status code means and when to use it.
- Hue Rotate Image — Shift every color around the wheel for instant recoloring.
I
- Image Color Picker Image — Click anywhere on an image to read the exact color under your cursor.
- Image Compressor Image — Shrink JPG, PNG and WEBP file sizes with a quality slider you control.
- Image Cropper Image — Drag a crop box over your image, lock it to a ratio, and export the exact region.
- Image Flipper Image — Mirror an image horizontally, vertically or both.
- Image Metadata Viewer Image — See the EXIF data hidden in a photo — camera, timestamps and GPS location.
- Image Palette Extractor Image — Pull the dominant colors out of any photo as a ready-to-use palette.
- Image Resizer Image — Resize any image to exact pixels or a percentage, keeping it sharp.
- Image Rotator Image — Rotate a photo by 90° steps or any angle you choose.
- Image to ASCII Art Image — Turn a photo into text art you can paste anywhere.
- Image to Base64 Image — Turn an image into a data URI you can paste straight into CSS or HTML.
- Image to Text (OCR) Image — Extract text from a photo, screenshot or scan using optical character recognition.
- Image to WEBP Image — Convert JPG or PNG to WEBP and cut file size by a third.
- Images to PDF PDF — Turn JPGs and PNGs into a single PDF — one image per page.
- Inflation Calculator Calculators — See what an amount is worth after years of inflation, in both directions.
- Inverse Case Converter Text — Swap every uppercase letter for lowercase and vice versa.
- Invert Image Colors Image — Flip every color to its opposite — a photographic negative.
- Invisible Character Detector Text — Find the zero-width and look-alike characters hiding in pasted text — and strip them out.
- IP Subnet Calculator Developer — Work out network, broadcast, mask and usable host range from CIDR notation.
J
- JPG to PNG Image — Convert a JPG into a lossless PNG.
- JSON Diff Developer — Compare two JSON documents by structure rather than by line, so formatting never shows up as a change.
- JSON Flattener Convert — Flatten deeply nested JSON into dot-notation keys, or expand it back.
- JSON Formatter Developer — Pretty-print, validate and tidy JSON with the indentation you prefer.
- JSON Minifier Developer — Strip every unnecessary space from JSON and see how much you saved.
- JSON to CSV Convert — Turn an array of JSON objects into a spreadsheet-ready CSV file.
- JSON to Query String Convert — Convert a JSON object into a URL query string, and back again.
- JSON to TypeScript Developer — Turn a JSON sample into TypeScript interfaces you can paste straight in.
- JSON to XML Convert — Convert a JSON document into equivalent XML markup.
- JSON to YAML Convert — Convert JSON into readable YAML for configs and pipelines.
- JSON Validator Developer — Check JSON for errors and get the exact line and column of the problem.
- JWT Decoder Developer — Decode a JSON Web Token to read its header and payload — locally, always.
K
- kebab-case Converter Text — Turn any phrase into kebab-case for URLs, CSS and file names.
- Keyword Density Checker Web & SEO — See which words and phrases dominate your page copy.
L
- Leap Year Checker Calculators — Check whether a year is a leap year, and find the next few.
- Leetspeak Converter Text — Turn plain text into 1337 5p34k.
- Length Converter Units — Convert between meters, feet, inches, miles, kilometers and more.
- Line Counter Text — Count total, non-empty, unique and duplicate lines in any list.
- List to JSON Array Convert — Turn a pasted list of lines into a JSON array — strings or numbers.
- LLM Cost Calculator AI & Writing — Work out what an API workload costs per call, per day and per month, at your own prices.
- LLM Token Counter AI & Writing — Estimate how many tokens a prompt will use, and how much of a context window it fills.
- Loan Calculator Calculators — Monthly payment, total interest and payoff totals for any fixed-rate loan.
- Lorem Ipsum Generator Generators — Generate placeholder text by the word, sentence or paragraph.
- Lowercase Converter Text — Convert any text to lowercase instantly.
M
- Macro Calculator Calculators — Split a daily calorie target into protein, carbs and fat.
- Make Image Square Image — Pad any photo into a perfect square — no cropping, nothing lost.
- Margin and Markup Calculator Calculators — Convert between cost, price, profit margin and markup.
- Markdown Table Generator Convert — Paste CSV, TSV or pasted spreadsheet cells and get an aligned markdown table.
- Markdown to HTML Convert — Convert Markdown into clean HTML — headings, lists, links, tables and code.
- Markdown to Plain Text AI & Writing — Strip the markdown formatting out of AI output and leave clean, pasteable prose.
- MD5 Hash Generator Developer — Produce the MD5 checksum of any text, instantly.
- Meme Generator Image — Add classic top and bottom caption text to any image.
- Merge PDF PDF — Combine several PDFs into one file, in the order you choose.
- Meta Tag Generator Web & SEO — Generate the complete set of SEO and social meta tags for a page.
- Morse Code Translator Text — Translate between plain text and Morse code, both directions.
- Mortgage Calculator Calculators — Work out monthly repayments, total interest and the true cost of a mortgage.
N
- NATO Phonetic Alphabet Text — Spell anything out as Alfa Bravo Charlie — for phone calls that keep going wrong.
- Number Base Converter Developer — Convert numbers between binary, octal, decimal, hex and any base up to 36.
- Number Formatter Text — Add thousands separators, fix decimal places, or convert between number formats used in different countries.
P
- Paint Calculator Calculators — How much paint a room needs, allowing for coats, doors and windows.
- Palindrome Checker Text — Check whether a word or phrase reads the same backwards.
- PascalCase Converter Text — Turn any phrase into PascalCase for classes and components.
- Passphrase Generator Generators — Generate memorable word-based passphrases that are still hard to crack.
- Passport Photo Maker Image — Crop a headshot to official passport and ID dimensions at print resolution.
- Password Generator Generators — Generate strong random passwords using your browser’s secure randomness.
- PDF Info Viewer PDF — Inspect a PDF — page count, page sizes, metadata and whether it has text.
- PDF Metadata Editor PDF — Read and rewrite a PDF’s title, author, subject and keywords.
- PDF to Black and White PDF — Strip the color out of a PDF — cheaper to print, smaller to send.
- PDF to Images PDF — Render each PDF page as a JPG or PNG at the resolution you choose.
- PDF to Text PDF — Pull the text layer out of a PDF as a plain text file.
- Percentage Calculator Calculators — Every common percentage question, answered at once.
- Percentage Change Calculator Calculators — Measure growth or decline between two numbers.
- Pixelate Image Image — Pixelate a photo to censor faces, plates and personal details.
- Placeholder Image Generator Image — Create sized placeholder images for mockups, with the dimensions written on.
- PNG to JPG Image — Convert PNG to JPG, choosing what fills any transparent areas.
- Posterize Image Image — Reduce an image to a handful of color levels for a poster-print look.
- Power Converter Units — Convert watts, kilowatts, horsepower and BTU per hour.
- Precise Image Cropper Image — Crop by exact pixel coordinates or a fixed aspect ratio, without dragging.
- Pregnancy Due Date Calculator Calculators — Estimate a due date and see the current stage of pregnancy.
- Pressure Converter Units — Convert bar, PSI, pascals, atmospheres and mmHg.
- Prime Number Checker Calculators — Check whether a number is prime and see its factorisation.
- Print Size Calculator Calculators — How large you can print an image before it looks soft.
- Prompt Formatter AI & Writing — Wrap prompt sections in XML-style tags, the structure models follow most reliably.
- Prompt Template Filler AI & Writing — Fill {{variables}} in a prompt template from a list of values, and generate every version at once.
Q
- QR Code Generator Web & SEO — Create QR codes for links, text, Wi-Fi, contacts and more — no tracking, no expiry.
- Quadratic Equation Solver Calculators — Solve ax² + bx + c = 0 with real or complex roots, shown step by step.
- Query String Parser Developer — Break a URL into its parts and list every query parameter.
R
- Random Color Generator Color — Generate random colors — completely random, or within a mood.
- Random Date Generator Generators — Generate random dates within a range — useful for test data.
- Random Number Generator Generators — Draw random numbers in any range, with or without repeats.
- Random Picker Generators — Pick a winner — or several — from a list of names or options.
- Random String Generator Developer — Generate random IDs, tokens and keys from an alphabet you choose.
- Random Team Generator Generators — Split a list of people into balanced random teams.
- Ratio Calculator Calculators — Simplify ratios, scale them up, and solve for a missing value.
- Readability Checker Text — Flesch reading ease, grade level and the numbers behind them.
- Reading Time Calculator Text — Estimate how long your text takes to read at any reading speed.
- Regex Escape Developer — Escape a literal string so it can be dropped into a regular expression safely.
- Regex Tester Developer — Test a regular expression against sample text and see every match highlighted.
- Remove Accents Text — Convert accented characters to their plain ASCII equivalents.
- Remove Duplicate Lines Text — Strip repeated lines from a list, keeping the order you had.
- Remove Empty Lines Text — Delete blank lines, or collapse runs of them into one.
- Remove Extra Spaces Text — Collapse double spaces and trim the edges of every line.
- Remove Line Breaks Text — Join wrapped text back into one flowing paragraph.
- Remove Punctuation Text — Strip punctuation and symbols, leaving letters, numbers and spaces.
- Reorder PDF Pages PDF — Rebuild a PDF with the pages in exactly the order you specify.
- Reverse PDF Page Order PDF — Flip a PDF back to front — handy after a reverse-order scan.
- Reverse Text Text — Flip text backwards by character, word or line.
- RGB to HEX Converter Color — Convert RGB values into hex codes, one line at a time.
- Right Triangle Calculator Calculators — Pythagoras, angles, area and perimeter from any two sides.
- Robots.txt Generator Web & SEO — Build a robots.txt file that says exactly what you mean.
- ROI Calculator Calculators — Return on investment, plus the annualised rate over your holding period.
- Roman Numeral Converter Units — Convert numbers to Roman numerals and back again.
- ROT13 Encoder Text — Apply the classic ROT13 letter rotation — run it twice to undo it.
- Rotate PDF PDF — Turn pages the right way up — all of them, or just the ones you pick.
- Round Image Corners Image — Give an image soft rounded corners with a transparent background.
- Running Pace Calculator Calculators — Convert between pace, speed and finish time for any distance.
S
- Salary Converter Calculators — Convert between hourly, daily, weekly, monthly and annual pay.
- Sales Tax and VAT Calculator Calculators — Add tax to a net price, or strip it back out of a gross price.
- Schema Markup Generator Web & SEO — Generate JSON-LD structured data for rich search results.
- Screen Recorder Media — Record your screen or a single window straight to a video file.
- Secret Santa Generator Generators — Draw Secret Santa pairings where nobody gets themselves.
- Sentence Case Converter Text — Capitalize the first letter of every sentence and lowercase the rest.
- Sentence Counter Text — Count sentences and see average sentence and word length.
- Sentence Splitter Text — Break a paragraph into one sentence per line — for subtitles, translation, or reading it back critically.
- Sepia Photo Filter Image — Give a photo a warm, aged sepia tone.
- SHA-256 Hash Generator Developer — Produce a SHA-256 hash of any text using the browser’s own crypto.
- Shades and Tints Generator Color — Generate a full lightness ramp from any color — perfect for design tokens.
- Sharpen Image Image — Bring back edge detail in a slightly soft photo.
- Shoe Size Converter Units — Convert shoe sizes between UK, US, EU and centimeters.
- Shuffle Lines Text — Randomize the order of a list — draws, playlists, running orders.
- Sign PDF PDF — Draw your signature and place it on any page of a PDF.
- Simple Interest Calculator Calculators — Interest calculated on the original amount only — no compounding.
- Smart Quote Converter AI & Writing — Convert curly quotes, dashes and ellipses to plain ASCII — or back the other way.
- snake_case Converter Text — Turn any phrase into snake_case for databases and Python.
- Social Media Image Resizer Image — Resize to the exact dimensions each platform wants, in one click.
- Social Share Preview Web & SEO — Preview how a link will look when shared on social platforms.
- Sort Lines Text — Alphabetise or numerically sort any list of lines.
- Speaking Time Calculator Text — Work out how long a script takes to say out loud — for talks, videos and voiceovers.
- Speed Converter Units — Convert km/h, mph, knots, meters per second and Mach.
- Split PDF PDF — Break a PDF into separate files — one per page, or in fixed-size chunks.
- SQL Formatter Developer — Break a long SQL statement onto readable lines with consistent keywords.
- SQL IN Clause Builder Developer — Turn a pasted list into a ready-to-run SQL IN clause.
- Standard Deviation Calculator Calculators — Population and sample standard deviation, variance and quartiles.
- Strikethrough Text Text — Add s̶t̶r̶i̶k̶e̶t̶h̶r̶o̶u̶g̶h̶ or underline that survives a copy-paste.
- String Escaper Developer — Escape or unescape text for JSON, JavaScript, CSV and shell arguments.
- Strip Image Metadata Image — Remove EXIF data — GPS location, camera model, timestamps — by re-encoding.
- SVG to PNG Image — Rasterize an SVG to a PNG at whatever size you need.
- System Prompt Builder AI & Writing — Assemble a structured system prompt from role, task, rules, format and refusal behavior.
T
- Temperature Converter Units — Convert Celsius, Fahrenheit, Kelvin and Rankine.
- Text Diff Checker Text — Compare two blocks of text and see exactly what changed, line by line.
- Text Repeater Text — Repeat any text as many times as you like.
- Text to Binary Text — Convert text into 8-bit binary, and binary back into text.
- Text to Hex Converter Developer — Show text as its hexadecimal bytes, in whichever layout you need.
- Text Truncator Text — Cut text to a character or word limit without chopping a word in half.
- Tile Calculator Calculators — Work out how many tiles a floor or wall needs, including the wastage everyone forgets.
- Time Converter Units — Convert seconds, minutes, hours, days, weeks and years.
- Time Duration Calculator Calculators — Work out the time between two clock times, across midnight if needed.
- Time Zone Converter Units — Convert a time between any two zones, with daylight saving handled properly.
- Tip Calculator Calculators — Work out the tip and split the bill between any number of people.
- Title Case Converter Text — Capitalize headlines properly, leaving small words alone.
- Tone Generator Media — Play and download pure test tones at any frequency.
- Tool Builder Developer — Write your own DuckyTools tool, watch it run, and download it as one self-contained HTML file.
- Trim Whitespace Text — Remove leading and trailing whitespace from every line.
U
- Unicode Character Inspector Developer — Break text into code points and see what each character really is, byte for byte.
- Unix Timestamp Converter Developer — Convert between Unix timestamps and human-readable dates, both ways.
- Uppercase Converter Text — Convert any text to UPPERCASE instantly.
- Upside Down Text Text — Flip text ʇxǝʇ using Unicode look-alikes.
- URL Decoder Developer — Turn percent-encoded text back into readable characters.
- URL Encoder Developer — Percent-encode text for safe use in URLs and query strings.
- URL Slug Generator Web & SEO — Turn a title into a clean, SEO-friendly URL slug.
- User Agent Parser Developer — Read a user-agent string, or inspect your own browser’s.
- Username Generator Generators — Generate available-sounding usernames and handles.
- UTM Link Builder Web & SEO — Build tagged campaign URLs that analytics tools can actually read.
- UUID Generator Developer — Generate cryptographically random version-4 UUIDs in bulk.
V
- Video File Info Media — Check a video’s resolution, duration, aspect ratio and size.
- Video Frame Extractor Media — Scrub through a video and save any frame as a PNG or JPG.
- Voice Recorder Media — Record audio from your microphone and download it — nothing is uploaded.
- Volume Converter Units — Convert liters, gallons, pints, cubic meters and cups.
W
- Water Intake Calculator Calculators — A daily hydration target based on weight, activity and climate.
- WEBP to JPG Image — Convert modern WEBP images into universally supported JPGs.
- Weight Converter Units — Convert kilograms, pounds, stones, ounces, grams and tonnes.
- What Can I Do With This File? Convert — Drop any file to identify what it really is, then jump straight to a tool that can work on it — with the file already loaded.
- Word Counter Text — Count words, characters, sentences, paragraphs and reading time as you type.
- Word Frequency Counter Text — See which words you use most, with counts and percentages.
- Word Wrap Text — Hard-wrap text to a fixed column width, with optional indent and hanging indent.
- Working Days Calculator Calculators — Count working days between two dates, excluding weekends and holidays.
X
- XML Formatter Developer — Indent XML into a readable tree and check that it parses.
- XML Sitemap Generator Web & SEO — Turn a list of URLs into a valid XML sitemap.
- XML to JSON Convert — Parse XML into a JSON structure, attributes included.
Y
- YAML to JSON Convert — Convert YAML configuration into JSON.
- Yes or No Decision Maker Generators — Let a coin decide. Ask a question, get an answer.