All 125 tools
Everything in one list, grouped by what it does. Every tool works without an account and without uploading anything.
Text tools
Count, clean, convert and rewrite text right in the browser.
Word Counter
Free word counter.
Hidden Character Cleaner
Highlights invisible characters, curly quotes, em dashes and odd spaces that machine-written and auto-formatted text carries, and removes them in one click.
Case Converter
Convert text between UPPERCASE, lowercase, Sentence case, Title Case, camelCase, snake_case, kebab-case and more.
Duplicate Line Remover
Remove duplicate lines from any list instantly.
Line Break Remover
Remove line breaks and extra blank lines from pasted text.
Find and Replace
Search and replace text online, in plain mode or with regular expressions.
Text Separator
Split text by comma, space, tab or any custom delimiter, or join a list of lines back into one delimited string.
Slug Generator
Convert any title into a clean URL slug: lowercase, hyphenated, accents transliterated, punctuation stripped.
Text Reverser
Reverse text character by character, flip the word order, or reverse the order of lines.
Palindrome Checker
Check whether a word, phrase or number is a palindrome.
Text Repeater
Repeat a word, line or block of text as many times as you need, with a custom separator and optional numbering.
Keyword Density Checker
Analyse keyword density in any text.
Random Line Picker
Pick one or more random lines from a list.
Lorem Ipsum Generator
Generate lorem ipsum placeholder text by paragraphs, sentences or words.
Diff Checker
Compare two texts or files and see exactly what changed, line by line and word by word.
Encoding
Base64, URL, HTML entities, punycode and other encodings.
Base64 Encode
Encode text to Base64 in your browser.
Base64 Decode
Decode Base64 strings back to readable text.
URL Encoder
Percent-encode text for safe use in URLs and query strings.
URL Decoder
Decode percent-encoded URLs and query strings back to readable text.
HTML Entity Encode
Convert characters to HTML entities so they display as text instead of markup.
HTML Entity Decode
Decode HTML entities such as & © and   back into plain characters.
Text to Binary
Convert text to binary, hexadecimal, decimal or octal.
Binary to Text
Convert binary, hexadecimal, decimal or octal codes back into readable text.
ROT13 Encoder
Apply the ROT13 cipher to any text online.
ROT13 Decoder
Decode ROT13 and other Caesar-shifted text.
Quoted-Printable Encode
Encode text to quoted-printable, the MIME encoding used in email bodies.
Quoted-Printable Decode
Decode quoted-printable text from email source back to readable UTF-8.
Punycode Converter
Convert international domain names to Punycode (xn--) form.
Punycode Decoder
Decode Punycode xn-- domains back to their Unicode form.
Data converters
Move data between JSON, CSV, XML, Markdown and HTML.
CSV to JSON
Convert CSV to JSON online.
JSON to CSV
Convert JSON to CSV online.
JSON to XML
Convert JSON to well-formed XML with indentation and a configurable root element.
XML to JSON
Convert XML to JSON online.
HTML to Markdown
Convert HTML into clean Markdown.
Markdown to HTML
Convert Markdown to HTML with a live preview.
Code tools
Format, minify and validate CSS, HTML, JavaScript, JSON and SQL.
JSON Formatter
Format messy JSON into readable, indented output, or minify it back.
JSON Validator
Validate JSON and get the exact line, column and cause of the error.
CSS Formatter
Beautify minified or messy CSS with consistent indentation and spacing.
CSS Minifier
Minify CSS by removing comments, whitespace and redundant characters.
HTML Formatter
Format and indent HTML with proper nesting, powered by Prettier.
HTML Editor
Free online HTML editor with a live preview beside the code.
HTML Minifier
Minify HTML by collapsing whitespace and removing comments.
JavaScript Formatter
Beautify minified or unformatted JavaScript with Prettier, including modern syntax and JSX.
JavaScript Minifier
Minify JavaScript with Terser: shortened names, dead code removed, whitespace stripped.
JavaScript Obfuscator
Obfuscate JavaScript by mangling names, encoding strings and flattening formatting.
SQL Formatter
Format SQL queries with keyword casing, indentation and aligned clauses.
HTML Tag Stripper
Remove HTML tags and get clean plain text, with entities decoded and whitespace tidied.
Regex Tester
Test regular expressions against your text with live match highlighting, capture groups, flags and replacement preview.
Hashes and passwords
Hashes, password generation and strength checks, all offline.
Password Generator
Generate strong random passwords in your browser.
Password Strength Test
Check password strength by real entropy, not a coloured bar.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or a file, all at once.
MD5 Generator
Generate an MD5 hash of any text or file instantly.
SHA Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files, using the browser Web Crypto API.
Bcrypt Generator
Generate bcrypt hashes with a configurable cost factor, and verify a password against an existing hash.
Credit Card Validator
Check a card number against the Luhn checksum and identify the issuer.
JWT Decoder
Decode a JSON Web Token, read its claims with dates in plain English, and verify an HS256 signature.
Image tools
Compress, resize and convert images without uploading them.
Image Compressor
Compress JPG, PNG and WebP images with a quality slider and a live before and after size.
Image Resizer
Resize images by pixels or percentage, keeping the aspect ratio.
Image Rotate and Flip
Rotate images by 90 degrees or any angle, and flip horizontally or vertically.
Grayscale Converter
Convert any image to black and white with adjustable intensity, plus sepia and high contrast modes.
Image to Base64
Convert an image to a Base64 data URI, ready to paste into CSS, HTML or JSON.
Metadata Viewer and Remover
See every metadata field in a JPEG, PNG or WebP, including GPS, camera serial numbers and generator prompts, and strip it without re-encoding the image.
JPG to PNG
Convert JPG images to PNG in your browser.
PNG to JPG
Convert PNG to JPG with an adjustable quality setting and a background colour for transparent areas.
JPG to WebP
Convert JPG to WebP with an adjustable quality slider.
PNG to WebP
Convert PNG to WebP with transparency preserved, in lossy or lossless mode.
WebP to JPG
Convert WebP images to JPG for tools and applications that do not accept WebP.
WebP to PNG
Convert WebP to PNG losslessly, keeping transparency intact.
Favicon Generator
Turn any image into a favicon: a real multi-size favicon.ico plus every PNG size browsers ask for, with the HTML and manifest.
Base64 to Image
Paste a Base64 string or a data URI and see the image, its real format and dimensions, then download it.
Color tools
Convert HEX, RGB, HSL and check contrast against WCAG.
Color Picker
Pick a colour and get it in HEX, RGB, HSL, HWB and OKLCH at once, with a WCAG contrast check and generated tints and shades.
HEX to RGB
Convert HEX colour codes to RGB and HSL instantly.
RGB to HEX
Convert RGB and RGBA values to HEX colour codes instantly, with a live preview and HSL output.
Contrast Checker
Check colour contrast against WCAG AA and AAA, see the pair on real text, and get the nearest colour that passes without losing the hue.
Converters and calculators
Length, weight, temperature, speed, storage and everyday math.
Length Converter
Convert length and distance between metric and imperial units: metres, centimetres, kilometres, inches, feet, yards, miles and nautical miles.
Weight Converter
Convert weight and mass between kilograms, grams, pounds, ounces, stones, and metric, short and long tons.
Temperature Converter
Convert temperature between Celsius, Fahrenheit, Kelvin and Rankine instantly, with common reference points.
Speed Converter
Convert speed between kilometres per hour, miles per hour, metres per second, knots, feet per second and Mach.
Data Storage Converter
Convert data sizes between bytes, kilobytes, megabytes, gigabytes and terabytes, in both decimal (KB) and binary (KiB) systems.
Scientific Calculator
A free online scientific calculator with trigonometry, logarithms, powers, roots, constants, memory and a full history you can scroll back through.
BMI Calculator
Calculate body mass index in metric or imperial units and see the standard WHO category.
Time and date
Timestamps, world clock, stopwatch and countdown.
Timestamp Converter
Convert Unix timestamps to human dates and back, in seconds or milliseconds, in UTC, your local time zone or ISO 8601.
World Clock
See the current time in cities around the world, compare time zones side by side, and find a meeting slot that works in all of them.
Countdown Timer
A free online countdown timer with presets, a sound alarm, fullscreen mode and a shareable link.
Stopwatch
A precise online stopwatch with lap times, keyboard shortcuts and millisecond display.
Date Calculator
Calculate the number of days between two dates, or add and subtract days, weeks and months from a date.
Cron Parser
Translate a cron expression into plain English and see the next run times.
Webmaster tools
Robots.txt, htaccess, meta tags and social cards with a preview.
Meta Tag Generator
Generate title, description, canonical, Open Graph and Twitter meta tags, with a live preview of the Google result and length warnings.
Social Card Generator
Generate Open Graph and Twitter Card tags and see exactly how the link will look when shared on X, Facebook, LinkedIn and Slack.
Robots.txt Generator
Generate a valid robots.txt: crawl rules per bot, sitemap declaration, presets for WordPress and common CMSs, and AI crawler controls.
Htaccess Generator
Generate .htaccess rules for Apache: HTTPS and www redirects, 301 redirects, caching headers, compression, security headers and custom error pages.
Privacy Policy Generator
Generate a privacy policy covering the data you actually collect: analytics, cookies, contact forms, advertising.
Terms of Service Generator
Generate terms of service covering acceptable use, accounts, payments, liability and governing law.
UULE Generator
Build the uule parameter Google uses to set search location, and get a ready search link.
Network tools
DNS, whois, SSL, headers and other lookups.
DNS Lookup
Look up every DNS record type for a domain in one query: A, AAAA, MX, TXT, NS, CNAME, SOA and CAA.
Hostname to IP
Resolve a hostname to every IPv4 and IPv6 address it points to, and see which CDN or host answers.
IP to Hostname
Run a reverse DNS lookup on any public IP address and see the PTR records it resolves to.
Whois Lookup
Look up whois data for any domain: registrar, creation and expiry dates, status codes and name servers, with the raw response included.
SSL Checker
Check a TLS certificate: issuer, validity dates, days until expiry, covered host names, protocol, cipher and the full chain.
HTTP Header Checker
Fetch any URL and read every HTTP response header, with security headers, caching and compression called out.
HTTP Status Checker
Check the HTTP status code any URL returns, with the meaning explained and the full redirect chain shown.
Website Status Checker
Check whether a website is up from outside your network, with status code, response time, TLS details and server headers.
Redirect Checker
Follow a URL through every redirect and see each hop with its status code, target and timing.
URL Unshortener
Expand a shortened link and see the full destination before you visit it, including every hop along the way.
Compression Test
Check whether a URL is served compressed, which algorithm is used, and how many bytes compression saves.
Ping Test
Measure round trip time to any public host from our server, with four samples, best, worst and average.
Port Checker
Check whether specific ports are reachable on a host from outside your network.
SMTP Test
Connect to a mail server and read its greeting and advertised capabilities, including STARTTLS, AUTH and message size limit.
Page Source Viewer
Fetch the raw HTML a server returns for any URL, before JavaScript runs.
What Is My IP
See the public IP address your connection presents to websites, with reverse DNS and the request details your browser sends.
IP Information
Look up any public IP address: registry data on the owning network, allocation range, reverse DNS and address type.
Generators and other
QR codes, UUIDs, random numbers and small everyday helpers.
QR Code Generator
Generate QR codes for links, text, Wi-Fi, contact cards and email.
QR Code Reader
Read QR codes from an uploaded image, a screenshot or your webcam, right in the browser.
UUID Generator
Generate random UUID v4 and time-ordered UUID v7 identifiers, one or thousands at a time.
Random Number Generator
Generate random numbers in any range, with or without repeats, one or many at a time.
Coin Flip
Flip a virtual coin with an animation and honest 50/50 odds, single or in bulk, with running statistics.
Email Extractor
Extract every email address from a block of text, with duplicates removed, sorting and a choice of separators.
URL Extractor
Extract every URL from text or HTML source, with duplicates removed and optional filtering by domain or scheme.
URL Parser
Split any URL into scheme, host, port, path, query parameters and fragment, with each parameter decoded into a readable table.
Email Validator
Validate email address syntax against the real rules, catch common domain typos, and flag disposable and role addresses.
Domain Name Generator
Generate domain name ideas from your keywords, with prefixes, suffixes, blends and a choice of extensions.
Aim Trainer
Free online aim trainer.
Share Text by Link
Turn any text into a shareable link.
What Is My Browser
See your browser version, operating system, screen size, language, time zone and supported features, exactly as a website sees them.
User Agent Finder
See your user agent string and its parsed parts: browser, engine, version, operating system and device type.