JSON Schema Generator
Use JSON Schema Generator entirely in your browser, with no upload, no sign-up, and no data leaving your device. Runs entirely in your browser with no upload.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
schema inference board
JSON Schema Generator
Infer property rows and required-field hints from sample JSON.
How it works
- Start with the polished sample already loaded in the widget.
- Adjust the input and settings for your real scenario.
- Review the live result, then download the summary when useful.
FAQ
Does this run in my browser?
Yes. JSON Schema Generator works locally in the page with no backend upload or account.
Can I use the sample data?
Yes. The widget loads with a realistic sample so you can see the workflow before replacing it.
Can I save the output?
Yes. Use the download control to save a plain-text summary of the current result.
How we compare
| Feature | Online Tool Store | Manual spreadsheet | One-off notes |
|---|---|---|---|
| Live browser feedback | Included | Requires formulas | Manual |
| Sample visible on load | Included | Usually blank | Manual |
| Private local workflow | Yes | Depends on setup | Yes |
Use this tool when you want a focused, browser-only workflow instead of rebuilding the same checks by hand.