JSON-JS Tools – Browser-based utilities to format, compare, convert, and optimize JSON and JavaScript

Summary: JSON-JS Tools is a free, browser-based suite of utilities designed to handle JSON and JavaScript tasks such as formatting, comparing, converting, and minifying code. It operates entirely locally without uploading data, ensuring privacy and quick access without setup.

What it does

The tools include JSON formatting, validation, comparison, conversion between JSON and CSV, dummy JSON data generation, type checking, and JavaScript minification and optimization, all running directly in the browser.

Who it's for

It is intended for developers needing fast, privacy-focused utilities for day-to-day JSON and JavaScript manipulation.

Why it matters

It eliminates the need for external services by providing a local, zero-setup environment that speeds up common JSON and JavaScript workflows while protecting user data.