JSON Formatter & Validator
Validate JSON instantly, then copy pretty or minified versions with one click.
Pretty (2 spaces)
Minified
Debug JSON payloads without context switching
Paste API responses, webhook payloads, or configuration files. We validate the JSON, surface parsing errors, and give you both pretty and minified versions.
Copy results into docs, Postman, or codebases without worrying about indentation or stray whitespace.
Where it helps
- Developers troubleshooting API responses or saving fixtures.
- Support teams inspecting webhook payloads from integrations.
- Product managers editing copy-heavy app config files safely.
Tips for cleaner payloads
Pretty-print before sharing JSON snippets with teammates. Minify before pasting into size-sensitive contexts like query parameters.
Need to encode JSON for URLs? After formatting, jump to the URL Encode/Decode tool.
Sample workflow
Paste: {"nav": ["Home", "Tools", "Docs"]} → Pretty output with indentation for docs, minified output for APIs.
FAQ highlights
Do you store my JSON? No. Everything runs locally in your browser; nothing is uploaded.
Will you add schema validation? JSON Schema validation is on the roadmap—open an issue with your use case so we can prioritize it.