Dev Toolbox

100% functional · no API keys · all client-side always works

JSON format, text transform, color picker & Base64 — instant, private.

JSON Formatter

Pretty-print or minify JSON

{ "name": "dev-toolbox", "version": "1.0", "features": ["json", "text", "color", "base64"] }

Formatted JSON will appear here

Text Converter

UPPER, lower, Title & more

TRANSFORM THIS TEXT

Color Picker

Pick & copy hex color

#2563eb

Base64

Encode / Decode text

Hello Dev!

SGVsbG8gRGV2IQ==

100% client-side · no data stored instant · zero latency always functional