JSON Lint & Formatter
Paste JSON below — validated entirely in your browser. Your data is never sent to our servers.
Try an example:
Ready.
FAQ
- Is this JSON linter safe?
- Yes. Validation runs entirely in your browser. Your JSON is not uploaded to our server.
- Can I lint large JSON files?
- For typical API payloads, yes. Very large files may slow your browser — split or trim the file if needed.
- Do I need to upload my file?
- No upload required. Paste JSON text directly. Optional file upload can be added later.