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Format, repair, validate, and explore JSON. Run JSONPath queries, generate schemas, and export TypeScript/Python/Go models — all in your browser.
Search and replace supports regex
Every tool runs entirely in your browser. Nothing you type is uploaded, stored, or logged on our servers.
The JSON Formatter is an all-in-one workstation for malformed payload repair, structured exploration, query extraction, schema workflows, and model generation. Everything runs locally in your browser.
Paste strict JSON, JSONC, or JSON5, then switch between tree, table, graph, query, and schema tabs to inspect and transform complex data quickly. You can also generate TypeScript, Python, Go, and Java model stubs from the same input.
Yes. It can repair many common issues like trailing commas, missing quotes, or minor structural mistakes before formatting.
Yes. You can parse JSON, JSON5, and JSONC and then normalize output to clean JSON when needed.
Yes. Use query modes to extract fields from complex payloads without writing custom scripts.
No. Parsing and transformations run in-browser so sensitive data stays local.