JSON Schema validator
Validate a JSON document against a JSON Schema you supply. Inspect validation results and errors directly in your browser.
Features
- Check a JSON document against an explicit schema.
- Test required fields, types and other supported constraints.
- Copy or download the validation report.
How to use this tool
- Paste the JSON document into Input.
- Paste its schema into JSON Schema.
- Run validation and review the reported result or errors.
Good to know
This tool is free without sign-up, with unlimited processing and exports within the displayed input limits.
- Supply a self-contained schema; this tool does not generate schemas or fetch remote references. Numeric validation uses JavaScript numbers, so values beyond their precision may be rounded.
Privacy and local processing
This tool processes your input in your browser. Source files and text are not uploaded to a FormatOwl processing server. Advanced-tool access and trial balances are checked online using tool IDs, file types, sizes and page counts. Free tools do not require account authorization. Save the results you need before leaving or refreshing the page.
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