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Open Base64 Encode / Decode
Base64 Encode / Decode Convert text and binary data to Base64 and back.
Open URL Encode / Decode
URL Encode / Decode Percent-encode text for safe use in URLs, or decode it back.
Open HTML Encode / Decode
HTML Encode / Decode Escape HTML entities to prevent markup injection, or decode them.
Open Unicode Converter
Unicode Converter Convert between characters, code points and escape sequences.
Open Hex Converter
Hex Converter Convert text to hexadecimal and hex back to text.
Open Binary Converter
Binary Converter Convert text to binary and binary back to text.
Open JSON Formatter
JSON Formatter Format, indent and inspect JSON with clear error reporting.
Open JSON Validator
JSON Validator Check whether JSON is valid and see exactly where it breaks.
Open JSON Minifier
JSON Minifier Strip whitespace from JSON to make payloads smaller.
Open JSON Prettify
JSON Prettify Turn a single line of JSON into something readable.
Open YAML to JSON Converter
YAML to JSON Converter Turn YAML configuration into JSON, anchors and all.
Open JSON to YAML Converter
JSON to YAML Converter Turn JSON into readable YAML configuration.
Open CSV to JSON Converter
CSV to JSON Converter Turn a spreadsheet export into JSON records.
Open JSON to CSV Converter
JSON to CSV Converter Flatten JSON records into a spreadsheet.
Open MD5 Hash Generator
MD5 Hash Generator Generate an MD5 digest of any text.
Open SHA1 Hash Generator
SHA1 Hash Generator Generate a SHA-1 digest of any text.
Open SHA256 Hash Generator
SHA256 Hash Generator Generate a SHA-256 digest of any text.
Open SHA512 Hash Generator
SHA512 Hash Generator Generate a SHA-512 digest of any text.
Open bcrypt Generator
bcrypt Generator Hash a password with bcrypt, or verify one against a hash.
Open Password Generator
Password Generator Generate strong random passwords with a live strength estimate.
Open UUID Generator
UUID Generator Generate v4 and v7 UUIDs in bulk.
Open NanoID Generator
NanoID Generator Generate compact, URL-safe unique IDs.
Open Slug Generator
Slug Generator Turn any title into a clean, URL-safe slug.
Open Lorem Ipsum Generator
Lorem Ipsum Generator Generate placeholder text by paragraph, sentence or word.
Open Random Text Generator
Random Text Generator Generate random strings, words, names and test data.
Open Case Converter
Case Converter Convert text between camelCase, snake_case, kebab-case and more.
Open Remove Duplicate Lines
Remove Duplicate Lines Strip repeated lines from a list, keeping the order you want.
Open Sort Lines
Sort Lines Sort lines alphabetically, numerically, by length or at random.
Open Word Counter
Word Counter Count words, characters, sentences and reading time.
Open Regex Tester
Regex Tester Test regular expressions live, with highlighted matches and groups.
Open Regex Cheat Sheet
Regex Cheat Sheet Every regex token, explained, with copyable examples.
Open Unix Timestamp Converter
Unix Timestamp Converter Convert Unix timestamps to dates and back, in any time zone.
Open Epoch Converter
Epoch Converter Convert between epoch time and formatted dates in bulk.
Open Timezone Converter
Timezone Converter Convert a time between any two time zones, DST included.
Open JWT Decoder
JWT Decoder Decode a JSON Web Token and inspect its claims.
Open JWT Encoder
JWT Encoder Build and sign a JSON Web Token with HMAC.
Open Cron Parser
Cron Parser Translate a cron expression into plain English and next run times.
Open Cron Generator
Cron Generator Build a cron expression from a schedule you describe.
Open HTTP Status Code Lookup
HTTP Status Code Lookup Look up any HTTP status code and what it actually means.
Open MIME Type Lookup
MIME Type Lookup Find the MIME type for any file extension, or the reverse.
Open User Agent Parser
User Agent Parser Break a User-Agent string into browser, engine, OS and device.
Open DNS Lookup
DNS Lookup Query A, AAAA, MX, TXT, NS, CNAME, SOA and CAA records.
Open Subdomain Finder
Subdomain Finder Discover subdomains from certificate transparency logs.
Open Whois Lookup
Whois Lookup Look up domain registration, ownership and expiry.
Open IP Lookup
IP Lookup Inspect an IP address: type, range, reverse DNS and records.
Open Reverse DNS Lookup
Reverse DNS Lookup Find the hostname behind an IP address.
Open SSL Certificate Checker
SSL Certificate Checker Inspect a site's TLS certificate, chain and expiry.
Open RGB to HEX Converter
RGB to HEX Converter Convert RGB and HSL colours to hexadecimal.
Open HEX to RGB Converter
HEX to RGB Converter Convert hex colour codes to RGB, HSL and CSS formats.
Open Number Base Converter
Number Base Converter Convert numbers between binary, octal, decimal, hex and any base.
Open Byte Size Converter
Byte Size Converter Convert between bytes, KB, MB, GB and their binary equivalents.
Open Image to Base64
Image to Base64 Convert an image to a Base64 data URI for inline embedding.
Open Image Metadata Viewer
Image Metadata Viewer Read EXIF, dimensions and camera data from an image.
Open SVG Preview
SVG Preview Render SVG markup live and export it as a data URI or PNG.
Open Background Remover
Background Remover Cut a uniform background out of a logo, product shot or sprite - no AI, no upload.
Open QR Code Generator
QR Code Generator Generate a QR code for any text, URL, WiFi network or contact.
Open Barcode Generator
Barcode Generator Generate Code 128 barcodes as scalable SVG.
Open UUID Validator
UUID Validator Validate UUIDs and identify their version and variant.
Open Text Diff
Text Diff Compare two blocks of text and see exactly what changed.
Open JSON Diff
JSON Diff Compare two JSON documents and see every key that changed.
Open HTTP Request Builder
HTTP Request Builder A tiny, honest API client: send real requests from your browser and copy the equivalent cURL, fetch, PHP or Python code.
Open JavaScript Obfuscator
JavaScript Obfuscator Compact and lightly obfuscate JavaScript entirely in your browser - no code ever leaves your machine.
Open PHP Source Encoder / Obfuscator
PHP Source Encoder / Obfuscator Obfuscate PHP by stripping comments and renaming identifiers, or encrypt it with real AES-256-GCM - all client-side.
Open Code Formatter
Code Formatter Format or conservatively minify HTML, CSS, JavaScript, JSON, XML, SQL and PHP, one tool for all seven.
Open SQL Formatter
SQL Formatter Beautify or minify SQL for MySQL, PostgreSQL, SQLite and SQL Server, without ever executing it.
Open JSONPath Tester
JSONPath Tester Query a JSON document with a JSONPath subset: dot/bracket paths, wildcards, slices, recursive descent, and filters.
Open JSON to TypeScript
JSON to TypeScript Turn one JSON example into readable, multi-interface TypeScript types.
Open JSON to PHP Array
JSON to PHP Array Convert JSON into a paste-ready PHP array literal, with short or long syntax and a variable or define() wrapper.
Open HTTP Headers Analyzer
HTTP Headers Analyzer Paste response headers to check them against common security and caching best practices.
Open URL Parser
URL Parser Break any URL into its scheme, host, port, path, query parameters and fragment.
Open CIDR Calculator
CIDR Calculator Compute the network, broadcast, usable host range and address counts for any IPv4 CIDR block or address/prefix pair.
Open Image Compressor
Image Compressor Resize and re-encode images to JPEG, PNG, WebP, or AVIF, with a real measured before/after file size.
Open Favicon Generator
Favicon Generator Generate a favicon.ico plus every PNG size and the ready-to-paste head tags to match, entirely in your browser.
Open Fake JSON Generator
Fake JSON Generator Turn a one-line-per-field schema into an array of realistic fake JSON records, generated entirely in your browser.
Open Password Strength Checker
Password Strength Checker Estimate a password's entropy, see exactly which weaknesses cost you bits, and get an approximate crack time.
Open Hash Identifier
Hash Identifier Identify a hash's likely algorithm from its format and length, with an honest confidence level for every guess.