Free JSON tools that don't get in your way
JSON Object Editor is a toolkit of focused, fast, client-side JSON tools — built because most free JSON editors are either a single do-everything page or a genuinely useful feature buried behind a login.
Why this exists
Working with JSON day to day usually means bouncing between a validator here, a formatter there, and a diff tool somewhere else — often with ads, sign-up walls, or upload limits in the way. JSON Object Editor puts the tools developers actually reach for in one place, each as its own fast page, with nothing gated behind an account.
How it works
Every tool on this site runs entirely in your browser. There's no backend processing your JSON — parsing, formatting, diffing, schema generation, and code generation all happen locally with plain JavaScript. That means it works offline once loaded, and your data never has to leave your machine. See the privacy page for the specifics.
What makes it different
Beyond the basics — validating, formatting, and comparing — this toolkit includes things most free JSON editors skip entirely: a JSONPath/JMESPath query tester, JSON-to-TypeScript/Java/Go type generation, a JSON Schema generator, and a tree viewer with click-to-copy paths. The goal is to cover the whole day-to-day JSON workflow, not just one step of it.