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JSON formatters, encoders, converters, hash generators, and more. Free tools that run entirely in your browser.

JSON Tools Encoding & Decoding Text Tools Cryptography JWT & Tokens Regular Expressions Color Tools Date & Time

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JSON Tools

29 tools

Free online JSON tools to format, validate, compare, and transform JSON data. Pretty print, minify, convert to YAML/CSV/XML, and more — all in your browser.

Encoding & Decoding

41 tools

Free online encoding and decoding tools for Base64, URL encoding, Unicode, HTML entities, and more. Convert between formats instantly in your browser.

Text Tools

44 tools

Free online text tools to transform, analyze, and manipulate text strings. Count words, change case, find and replace, sort lines, and more.

Cryptography

42 tools

Free online cryptography tools for hash generation, encryption, decryption, and security analysis. MD5, SHA-256, AES, HMAC, and more — all client-side.

JWT & Tokens

10 tools

Free online JWT tools to decode, verify, and debug JSON Web Tokens. Inspect headers, payloads, and signatures without sending data to any server.

Regular Expressions

19 tools

Free online regular expression tools to build, test, and debug regex patterns. Live matching, syntax highlighting, and cheat sheets for all major flavors.

Color Tools

29 tools

Free online color tools to convert, pick, and generate color palettes. HEX, RGB, HSL, OKLCH conversions, contrast checkers, and palette generators.

Date & Time

44 tools

Free online date and time tools to convert, format, and calculate dates. Unix timestamps, time zones, duration calculators, and date formatters.

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A comprehensive collection of developer utilities — from JSON formatting to image processing.

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