All 112 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. Counts words, characters with and without spaces, sentences, paragraphs and reading time as you type. Nothing leaves your browser.
Case Converter
Convert text between UPPERCASE, lowercase, Sentence case, Title Case, camelCase, snake_case, kebab-case and more. Instant, free, runs in your browser.
Duplicate Line Remover
Remove duplicate lines from any list instantly. Options for case sensitivity, trimming, sorting and keeping only the lines that repeat. Free and private.
Line Break Remover
Remove line breaks and extra blank lines from pasted text. Join everything into one paragraph or keep paragraph spacing. Free online tool, nothing uploaded.
Find and Replace
Search and replace text online, in plain mode or with regular expressions. Case-insensitive matching, capture groups and a live count of replacements.
Text Separator
Split text by comma, space, tab or any custom delimiter, or join a list of lines back into one delimited string. Free, instant, in-browser.
Slug Generator
Convert any title into a clean URL slug: lowercase, hyphenated, accents transliterated, punctuation stripped. Free online slug generator.
Text Reverser
Reverse text character by character, flip the word order, or reverse the order of lines. Free online text reverser that runs in your browser.
Palindrome Checker
Check whether a word, phrase or number is a palindrome. Ignores spaces, punctuation and case, and shows the normalised text it compared.
Text Repeater
Repeat a word, line or block of text as many times as you need, with a custom separator and optional numbering. Free online text repeater.
Keyword Density Checker
Analyse keyword density in any text. Counts single words and two or three word phrases, shows frequency and percentage, and skips common stop words.
Random Line Picker
Pick one or more random lines from a list. Fair shuffling, optional no-repeat mode. Free online random picker for giveaways, names and decisions.
Lorem Ipsum Generator
Generate lorem ipsum placeholder text by paragraphs, sentences or words. Classic opening, optional HTML paragraph tags. Free and instant.
Encoding
Base64, URL, HTML entities, punycode and other encodings.
Base64 Encode
Encode text to Base64 in your browser. Full Unicode support, URL-safe variant, line wrapping. Nothing is uploaded, so credentials stay local.
Base64 Decode
Decode Base64 strings back to readable text. Handles UTF-8, URL-safe Base64 and missing padding. Free, instant and fully in-browser.
URL Encoder
Percent-encode text for safe use in URLs and query strings. Choose between full component encoding and full URI encoding. Free online URL encoder.
URL Decoder
Decode percent-encoded URLs and query strings back to readable text. Handles UTF-8, plus signs and repeated encoding. Free and private.
HTML Entity Encode
Convert characters to HTML entities so they display as text instead of markup. Escapes angle brackets, quotes and ampersands. Free online encoder.
HTML Entity Decode
Decode HTML entities such as & © and   back into plain characters. Supports named, decimal and hex entities. Free online decoder.
Text to Binary
Convert text to binary, hexadecimal, decimal or octal. UTF-8 aware, with a choice of separators and byte grouping. Free online converter.
Binary to Text
Convert binary, hexadecimal, decimal or octal codes back into readable text. Tolerates any spacing. Free online binary decoder, runs in-browser.
ROT13 Encoder
Apply the ROT13 cipher to any text online. Also supports ROT5 for digits and a custom rotation amount. Free, instant, in-browser.
ROT13 Decoder
Decode ROT13 and other Caesar-shifted text. Try every rotation at once when you do not know the shift. Free online ROT13 decoder.
Quoted-Printable Encode
Encode text to quoted-printable, the MIME encoding used in email bodies. Handles UTF-8 and wraps lines at 76 characters per RFC 2045.
Quoted-Printable Decode
Decode quoted-printable text from email source back to readable UTF-8. Handles soft line breaks and =XX escapes. Free online decoder.
Punycode Converter
Convert international domain names to Punycode (xn--) form. Supports Cyrillic, Chinese, Arabic and emoji domains. Free online IDN converter.
Punycode Decoder
Decode Punycode xn-- domains back to their Unicode form. See what an international domain name really says. Free online decoder.
Data converters
Move data between JSON, CSV, XML, Markdown and HTML.
CSV to JSON
Convert CSV to JSON online. Auto-detects the delimiter, handles quoted fields, and can type numbers and booleans. Free, and your file never leaves the browser.
JSON to CSV
Convert JSON to CSV online. Flattens nested objects into columns, unions all keys, and quotes fields safely for Excel. Free and fully in-browser.
JSON to XML
Convert JSON to well-formed XML with indentation and a configurable root element. Free online converter that runs entirely in your browser.
XML to JSON
Convert XML to JSON online. Handles attributes, nested nodes and CDATA, with a compact output mode. Free, instant, nothing uploaded.
HTML to Markdown
Convert HTML into clean Markdown. Keeps headings, links, lists, tables and code blocks, drops the styling noise. Free in-browser converter.
Markdown to HTML
Convert Markdown to HTML with a live preview. Supports tables, task lists, fenced code and autolinks. Free online converter, runs in-browser.
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. Shows the exact line of any syntax error. Free and fully in-browser.
JSON Validator
Validate JSON and get the exact line, column and cause of the error. Shows a structure summary when the document is valid. Free online JSON validator.
CSS Formatter
Beautify minified or messy CSS with consistent indentation and spacing. Powered by Prettier and running entirely in your browser. Free.
CSS Minifier
Minify CSS by removing comments, whitespace and redundant characters. Shows before and after size with the percentage saved. Free and in-browser.
HTML Formatter
Format and indent HTML with proper nesting, powered by Prettier. Handles inline CSS and JavaScript inside the document. Free online beautifier.
HTML Minifier
Minify HTML by collapsing whitespace and removing comments. Shows the size saved. Free online HTML minifier that runs in your browser.
JavaScript Formatter
Beautify minified or unformatted JavaScript with Prettier, including modern syntax and JSX. Free, instant and entirely in-browser.
JavaScript Minifier
Minify JavaScript with Terser: shortened names, dead code removed, whitespace stripped. See the size saved. Free and runs in your browser.
JavaScript Obfuscator
Obfuscate JavaScript by mangling names, encoding strings and flattening formatting. Free online obfuscator that runs entirely in your browser.
SQL Formatter
Format SQL queries with keyword casing, indentation and aligned clauses. Makes long joins and subqueries readable. Free online SQL beautifier.
HTML Tag Stripper
Remove HTML tags and get clean plain text, with entities decoded and whitespace tidied. Optionally keep basic formatting tags. Free online tool.
Hashes and passwords
Hashes, password generation and strength checks, all offline.
Password Generator
Generate strong random passwords in your browser. Adjustable length, character sets, no ambiguous characters, plus a passphrase mode. Nothing is transmitted.
Password Strength Test
Check password strength by real entropy, not a coloured bar. Estimates crack time, detects patterns and common words. Runs offline in your browser.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or a file, all at once. Free, instant and computed in your browser.
MD5 Generator
Generate an MD5 hash of any text or file instantly. Includes checksum comparison. Free online MD5 generator that never uploads your data.
SHA Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files, using the browser Web Crypto API. Free, instant, nothing uploaded.
Bcrypt Generator
Generate bcrypt hashes with a configurable cost factor, and verify a password against an existing hash. Free, and computed in your browser.
Credit Card Validator
Check a card number against the Luhn checksum and identify the issuer. Runs entirely in your browser: the number is never sent or stored.
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. Batch mode, no upload, no watermark. Free.
Image Resizer
Resize images by pixels or percentage, keeping the aspect ratio. Batch processing, high quality downscaling, no upload. Free online image resizer.
Image Rotate and Flip
Rotate images by 90 degrees or any angle, and flip horizontally or vertically. No upload, no quality loss on right-angle turns. Free online tool.
Grayscale Converter
Convert any image to black and white with adjustable intensity, plus sepia and high contrast modes. Runs in your browser, nothing uploaded.
Image to Base64
Convert an image to a Base64 data URI, ready to paste into CSS, HTML or JSON. Shows the size increase. Free, in-browser, nothing uploaded.
JPG to PNG
Convert JPG images to PNG in your browser. Lossless output, batch conversion, no upload and no watermark. Free online converter.
PNG to JPG
Convert PNG to JPG with an adjustable quality setting and a background colour for transparent areas. Free, batch capable, nothing uploaded.
JPG to WebP
Convert JPG to WebP with an adjustable quality slider. Typically 25 to 35 percent smaller than JPG. Free, batch capable, runs in your browser.
PNG to WebP
Convert PNG to WebP with transparency preserved, in lossy or lossless mode. Big savings on screenshots and graphics. Free and in-browser.
WebP to JPG
Convert WebP images to JPG for tools and applications that do not accept WebP. Adjustable quality, batch mode, no upload. Free.
WebP to PNG
Convert WebP to PNG losslessly, keeping transparency intact. Free online converter, batch capable, nothing leaves your browser.
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. Free online tool.
HEX to RGB
Convert HEX colour codes to RGB and HSL instantly. Supports 3, 6 and 8 digit HEX with alpha. Free online colour converter with a live preview.
RGB to HEX
Convert RGB and RGBA values to HEX colour codes instantly, with a live preview and HSL output. Free online RGB to HEX converter.
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. Free instant converter.
Temperature Converter
Convert temperature between Celsius, Fahrenheit, Kelvin and Rankine instantly, with common reference points. Free online converter.
Speed Converter
Convert speed between kilometres per hour, miles per hour, metres per second, knots, feet per second and Mach. Free instant converter.
Data Storage Converter
Convert data sizes between bytes, kilobytes, megabytes, gigabytes and terabytes, in both decimal (KB) and binary (KiB) systems. Free converter.
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. An informational tool, not medical advice.
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. Free, live, in-browser.
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. Free.
Countdown Timer
A free online countdown timer with presets, a sound alarm, fullscreen mode and a shareable link. Runs accurately even in a background tab.
Stopwatch
A precise online stopwatch with lap times, keyboard shortcuts and millisecond display. Accurate in background tabs. Free, no signup.
Date Calculator
Calculate the number of days between two dates, or add and subtract days, weeks and months from a date. Business day mode included. Free.
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. Free.
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. Free.
Robots.txt Generator
Generate a valid robots.txt: crawl rules per bot, sitemap declaration, presets for WordPress and common CMSs, and AI crawler controls. Free.
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. GDPR and CCPA sections included.
Terms of Service Generator
Generate terms of service covering acceptable use, accounts, payments, liability and governing law. A drafting aid, not legal advice. Free.
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. Free online DNS checker.
Hostname to IP
Resolve a hostname to every IPv4 and IPv6 address it points to, and see which CDN or host answers. Free online DNS resolution.
IP to Hostname
Run a reverse DNS lookup on any public IP address and see the PTR records it resolves to. Free online reverse IP checker.
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. Free online SSL checker.
HTTP Header Checker
Fetch any URL and read every HTTP response header, with security headers, caching and compression called out. Free online header checker.
HTTP Status Checker
Check the HTTP status code any URL returns, with the meaning explained and the full redirect chain shown. Free online status checker.
Website Status Checker
Check whether a website is up from outside your network, with status code, response time, TLS details and server headers. Free online uptime check.
Redirect Checker
Follow a URL through every redirect and see each hop with its status code, target and timing. Detects loops and mixed http hops. Free.
URL Unshortener
Expand a shortened link and see the full destination before you visit it, including every hop along the way. Free and safe to use.
Compression Test
Check whether a URL is served compressed, which algorithm is used, and how many bytes compression saves. Free online gzip and brotli test.
Ping Test
Measure round trip time to any public host from our server, with four samples, best, worst and average. Free online latency test.
Port Checker
Check whether specific ports are reachable on a host from outside your network. Up to ten ports per check, with the usual service named.
SMTP Test
Connect to a mail server and read its greeting and advertised capabilities, including STARTTLS, AUTH and message size limit. Free SMTP check.
Page Source Viewer
Fetch the raw HTML a server returns for any URL, before JavaScript runs. See what crawlers see. Free online source viewer.
What Is My IP
See the public IP address your connection presents to websites, with reverse DNS and the request details your browser sends. Free.
IP Information
Look up any public IP address: registry data on the owning network, allocation range, reverse DNS and address type. Free IP lookup.
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. Custom colours, adjustable error correction, PNG and SVG download. Free forever.
QR Code Reader
Read QR codes from an uploaded image, a screenshot or your webcam, right in the browser. See the raw content before opening any link. Free.
UUID Generator
Generate random UUID v4 and time-ordered UUID v7 identifiers, one or thousands at a time. Cryptographically random, generated in your browser.
Random Number Generator
Generate random numbers in any range, with or without repeats, one or many at a time. Uses the browser cryptographic random source. Free.
Coin Flip
Flip a virtual coin with an animation and honest 50/50 odds, single or in bulk, with running statistics. Free, instant, no signup.
Email Extractor
Extract every email address from a block of text, with duplicates removed, sorting and a choice of separators. Free, runs in your browser.
URL Extractor
Extract every URL from text or HTML source, with duplicates removed and optional filtering by domain or scheme. Free online link extractor.
URL Parser
Split any URL into scheme, host, port, path, query parameters and fragment, with each parameter decoded into a readable table. Free.
Email Validator
Validate email address syntax against the real rules, catch common domain typos, and flag disposable and role addresses. Free, runs in-browser.
Domain Name Generator
Generate domain name ideas from your keywords, with prefixes, suffixes, blends and a choice of extensions. Free, instant, no signup.
What Is My Browser
See your browser version, operating system, screen size, language, time zone and supported features, exactly as a website sees them. Free.
User Agent Finder
See your user agent string and its parsed parts: browser, engine, version, operating system and device type. Free, instant, in-browser.