Formatters

Formatters are special helper pieces of functionality, that can format text according to some format.

Formatters

JSON Formatter Free online JSON formatter and validator. Beautify, indent, minify and validate JSON instantly in your browser. Fast, private and secure — no sign-up needed.
XML Formatter Free online XML formatter and validator. Beautify, indent and minify XML documents instantly in your browser. Fast, private and secure — no sign-up required.
HTML Formatter Free online HTML formatter and beautifier. Indent, tidy and clean up messy HTML markup instantly in your browser. Fast, private and secure — no sign-up.
CSS Formatter Free online CSS formatter and beautifier. Indent, tidy and minify CSS stylesheets instantly in your browser. Fast, private and secure — no sign-up required.
SQL Formatter Free online SQL formatter and beautifier. Indent and tidy SQL queries for readability instantly in your browser. Fast, private and secure — no sign-up needed.

Encoders / Decoders

Base64 Encode Free online Base64 encoder. Convert text or files to a Base64 string instantly in your browser. Fast, private and secure — nothing is uploaded to a server.
Base64 Decode Free online Base64 decoder. Decode Base64 strings back to plain text or files instantly in your browser. Fast, private and secure — no sign-up required.
HTML Encode / Decode Free online HTML encoder and decoder. Convert special characters to HTML entities and back instantly in your browser — no sign-up or installation required.
URL Encode / Decode Free online URL encoder and decoder. Percent-encode or decode URLs and query strings instantly in your browser. Fast, private and secure — no sign-up needed.
String Escape / Unescape Free online text escape and unescape tool. Escape or unescape special characters in strings for JSON, JavaScript and HTML instantly in your browser.
JWT Decoder Free online JWT decoder. Decode and inspect a JSON Web Token's header, payload and signature instantly in your browser. Private and secure — no sign-up needed.
ROT13 Encoder / Decoder Free online ROT13 encoder and decoder. Instantly transform text with the ROT13 letter-substitution cipher in your browser — no sign-up and no installation.
ROT47 Encoder / Decoder Free online ROT47 encoder and decoder. Scramble and unscramble ASCII text with the ROT47 cipher instantly in your browser — no sign-up or installation needed.

Converters

JSON ↔ YAML Converter Convert between JSON and YAML in both directions. Paste JSON to get clean YAML, or paste YAML to get valid JSON, with numbers, booleans and nulls kept intact.
CSV to JSON Converter Free CSV to JSON converter that also turns JSON into CSV. Handles quotes, line breaks inside fields and semicolon-separated Excel files, right in your browser. Nothing is uploaded.
Binary to Text Translator Free online binary to text converter. Translate binary code to readable text and text to binary instantly in your browser — no sign-up or installation needed.
JSON Patch Generator Compare two JSON documents and get the RFC 6902 patch that turns the first into the second. Everything runs in your browser.

Utilities

Diff Checker Free online diff checker. Compare two texts line by line in your browser, see exactly what was added, removed or changed, and copy the result as a unified patch.
Regex Cheatsheet & Visualizer Learn regex tokens fast, break a pattern into plain-language parts, and test it against your own text. Everything runs in your browser.
Cron Expression Generator Write and read crontab schedules. Type a cron expression and see in plain words when it runs, the next run times, and what each of the five fields means.
UUID / GUID Generator Free online UUID and GUID generator. Create random version-4 and namespace UUIDs instantly in your browser. Bulk generation and one-click copy, no sign-up.
Hash Generator Free online hash generator. Create MD5, SHA-1, SHA-256, SHA-512 and other checksums from your text instantly in your browser. Secure, private and no sign-up.
Epoch & Unix Timestamp Converter Free online Unix timestamp (epoch) converter. Convert Unix time to a human-readable date and back instantly in your browser. Seconds, ms, µs and ns supported.
Lorem Ipsum Generator Free online Lorem Ipsum generator. Create placeholder paragraphs, sentences or words for your designs and mockups instantly in your browser — no sign-up.
What Is My IP Check your public IP address, hostname, ISP and approximate location instantly. Free What Is My IP tool — see your IPv4 and IPv6 details right in your browser.

Wikipedia — Pretty-print
Wikipedia — JSON
Wikipedia — XML
Wikipedia — Base64
Wikipedia — Percent-encoding