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Format, minify, and validate JSON with syntax highlighting. Includes JSON Schema validation and drag & drop file support.
Output will appear here...A complete JSON toolkit that runs entirely in your browser.
Pretty print JSON with 2 or 4 space indentation and syntax highlighting.
Compress JSON by removing all whitespace. See the percentage saved.
Instant syntax checking with clear error messages showing what went wrong.
Validate JSON against any JSON Schema using Ajv with detailed error paths.
Alphabetically sort object keys at all nesting levels for consistent output.
Nothing leaves your browser. No server requests, no storage, completely private.
Common questions about the JSON formatter
Yes. Switch to Schema mode and paste your JSON Schema to validate your data against it. We use Ajv with full draft-2020-12 support.
Yes, but very large files (10MB+) may be slow since everything runs in your browser. For huge files, consider a CLI tool like jq.
Yes. Drag and drop any .json file onto the input panel to load it automatically.
It alphabetically sorts all object keys at every nesting level. Useful for comparing JSON objects or creating consistent output.
No. Everything happens in your browser. No data is sent to any server.
Whether it's API design, data pipelines, or complex integrations — we build robust backend systems that scale.
Disclaimer: This tool is provided for informational and educational purposes only. Preview renderings are approximations and may differ from actual platform displays due to platform updates, caching, or rendering differences. We fetch publicly available metadata and do not store or share your URLs. Platforms may cache old data even after you update your content—use their official debug tools to refresh caches. ZIRA Software is not liable for any decisions made based on this tool's output.