PlayWithJSON is a modern, browser-based toolkit for developers to format, validate, compare, convert, and generate JSON and JSON5 data.
Work smarter with powerful JSON utilities, including a JSON Formatter, Validator, Viewer, JSON5 Formatter, JSON to YAML Converter, Mock JSON Generator, and more.
Enjoy a fast, clean, privacy-friendly experience with multiple tabs and developer-focused tools — completely free, right in your browser.
No complicated setup. Just open, paste, and work with your data.
