Small, fast tools. No signup, ever.

A growing set of free developer utilities that run entirely in your browser. Nothing you paste is uploaded anywhere — it's processed locally and stays on your machine.

JSON

JSON Formatter & Validator

Beautify, minify, or explore JSON as a tree — with the exact line and column of any error.

JSON

JSON to CSV Converter

Turn an array of JSON objects into a downloadable CSV file in one click.

Text

Text Case Converter

Switch between UPPERCASE, lowercase, Title Case, camelCase, snake_case, and kebab-case.

Encoding

Base64 Encoder / Decoder

Encode text to Base64 or decode it back, instantly, with copy and download.

Why these tools are free

Most "free" tool sites bury the tool under ads, popups, or a signup wall. These don't. Each tool here does one job well, runs client-side in your browser, and stays out of your way. More tools are added regularly — bookmark this page if that's useful to you.