Use it while debugging payloads, tokens, requests, logs, and text formats during everyday development work.
JSON TOOLKIT
Format, validate, diff, query, and convert JSON directly...
JSON debug workspace
JSON Toolkit
Format, validate, diff, query, and convert JSON from one workspace built for API and backend debugging.
Practical guide
How to use the JSON Toolkit
Format, validate, diff, query, and convert JSON directly in the browser with a backend-friendly toolkit.
Paste JSON once and switch between formatter, diff, JSONPath, and code generation workflows. Use clean values and review the result label: json debug workspace.
Client-side utilities are useful for inspection and cleanup, but production validation should still live in your application or API tests.
Related tools
Tools for the same workflow
Open a nearby calculator or utility when the next step needs a different format, comparison, or check.
FAQ
Common questions, clean answers
Does the JSON toolkit send data to a server?
No. The formatting, diffing, JSONPath testing, and class generation all happen locally in the browser.
What workflows are included right now?
The current version supports formatting, validation, minifying, JSON diffing, JSONPath checks, and starter C# model generation.