About this site

Built for developers who just need the tool to work

JSON2X is a free, open-source collection of browser-only JSON and CSV utilities. No account, no upload, no tracking. Every operation runs entirely inside your browser using JavaScript.

Why JSON2X?

Every developer eventually pastes minified JSON into a formatter, validates a config file before a deploy, or needs to export API data to a spreadsheet. The problem is that most tools that do this either require sign-in, upload your data to a server, show intrusive advertising over their core UI, or are so bloated with features they take 5 seconds to load.

JSON2X is the opposite. Every tool is a static HTML page with a handful of vanilla JavaScript files. There is no backend. There is no database. There are no third-party analytics scripts phoning home. When you paste a JSON payload containing API keys, tokens, or private user data, it never leaves your machine — that's a structural guarantee, not a policy promise.

We care about performance. The entire toolkit loads from a CDN edge node in under 1 second on a standard connection. Pages are designed to be immediately usable: no loading spinners, no skeleton screens, no splash pages.

Design Principles

Privacy by architecture

No data is transmitted anywhere. All processing happens in the browser's JavaScript engine. You can open the DevTools Network tab and confirm zero requests are made when you use any tool.

Zero forced registration

You should never need an account to format JSON. There are no paywalls, no "free tier limits," no email-capture gates. All tools are fully functional with no session required.

Lean and fast

No frameworks, no bundlers, no runtime dependencies for the core tools. Each page is a self-contained HTML file that loads in under a second. Heavy operations (files over 200 KB) run in a Web Worker to keep the page responsive.