Developer Power Tools

Fast, private developer utilities. JSON, Base64, JWT, UUID, hashing, timestamps, regex, and more. No tracking. No server-side processing. Just tools.

100% client-side no tracking no sign-up open in any browser
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JSON Formatter

Format, validate, and minify JSON

B64

Base64

Encode and decode Base64 strings

JWT

JWT Decoder

Decode and inspect JSON Web Tokens

#id

UUID Generator

Generate v4 UUIDs in bulk

#!

Hash Generator

MD5, SHA-1, SHA-256, SHA-512

%20

URL Encode/Decode

Encode and decode URL components

Unix Timestamp

Convert between timestamps and dates

/./

Regex Tester

Test regex patterns with live matching

Color Converter

Convert between HEX, RGB, and HSL

±

Text Diff

Compare two blocks of text line by line

MD

Markdown Preview

Live markdown to HTML preview

Aa

Lorem Ipsum

Generate placeholder text