Built for developers, by a developer.
JSONConverter.pro is a free, browser-based utility for working with JSON, XML, and encoded strings. It supports formatting, minification, and conversion between data formats — all without sending your data anywhere. Every operation runs entirely in your browser using JavaScript.
As a developer, I found myself constantly jumping between different online tools to format JSON, convert XML, or decode URLs. Most of these tools had slow load times, cluttered interfaces, or — more concerningly — sent your data to their servers. I built JSONConverter.pro to solve that: one clean tool, all the conversions you need, with privacy built in from day one.
This tool is designed for software developers, data engineers, QA testers, and anyone who regularly works with structured data formats. Whether you're debugging an API response, preparing a configuration file, or cleaning up data for a spreadsheet import, JSONConverter.pro is built to handle it quickly.
Unlike many online tools, JSONConverter.pro never transmits your input data to any server. All processing happens client-side in your browser. This makes it safe to use even with sensitive or internal data. There is no logging, no tracking of your input, and no account required.
This tool was created and is maintained by Dinesh N., a developer passionate about building useful, no-nonsense utilities for the developer community. If you have feedback or suggestions, feel free to reach out via the Contact page.