Developer Tools
Free online formatters, encoders, decoders, and validators for everyday development. Format JSON, decode Base64, test regex patterns, inspect JWTs, and generate hashes — all in your browser with zero server processing.
Format, beautify, minify, and validate JSON data online. Instant error detection with line numbers.
Encode and decode Base64 strings online. Supports text and URL-safe Base64 encoding.
Encode and decode URL strings online. Supports full URL and component encoding.
Decode JSON Web Tokens and inspect header, payload, and expiration. No server-side processing.
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text. Uses the Web Crypto API.
Test regular expressions with live highlighting, match details, and capture group extraction.
About Developer Tools
Free online formatters, encoders, decoders, and validators for everyday development. Format JSON, decode Base64, test regex patterns, inspect JWTs, and generate hashes — all in your browser with zero server processing.
Every tool runs client-side in your browser. No data is sent to a server, no sign-up is required, and results appear instantly. Bookmark the tools you use most and access them anytime.