Developer Tools

Format JSON, decode JWTs, hash strings, convert colors, and encode Base64 — every utility runs 100% in your browser with zero uploads.

100% Private — files never leave your device
Color Converter — tools color-converter tool

Convert HEX, RGB, and HSL with a live preview.

HEXRGB
Base64 Encoder — tools base64-encoder tool

Encode text or files to Base64 without uploading anywhere.

B64DEV
JSON Formatter — tools json-formatter tool

Beautify, minify, and validate JSON with syntax highlighting in the browser.

JSONDEV
JWT Decoder — tools jwt-decoder tool

Inspect JSON Web Token headers and payloads locally.

JWTDEV
Hash Generator — tools hash-generator tool

Generate SHA-256 and other hashes from text in the browser.

HASHDEV