CleanTempMail Temp Mail API
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01 Your schema cabinet
A tidy stash for your JSON Schemas
Keep schemas in your browser, see problems as you edit, test sample data inline and share one with a link. Your schemas stay on this device.
Code editor. Press Escape, then Tab, to move focus out of the editor.
Your stash is empty
Create a schema, import a file or a share link, or bring back the examples.
Selected schema
02–07
The rest of the cabinet
- JSON to JSON SchemaInfer a schema from one or more samples, with formats and required fields.02
- ValidatorCheck data against a schema; click an error to jump to it.03
- Schema to TypeScriptInterfaces and types with named $defs, unions and tuples.04
- Schema to ZodRuntime validators for Zod 3 and 4, formats and limits included.05
- Mock dataRealistic, repeatable sample JSON that passes your schema.06
- Schema docsReadable property tables with a Markdown export.07
REC
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FAQ
Where is my stash stored?
In your browser’s IndexedDB storage on this device, or localStorage if IndexedDB is unavailable. It is not uploaded or synced anywhere. Clearing this site’s data deletes it, so use Export to keep a backup.
How do share links work?
The schema, its name, description, tags and sample are compressed and placed after the # in the link. Browsers do not send that part of a URL to the server, but anyone who has the link can read the schema, so share it as you would share the file. Some apps cut off very long links; export a file instead.
Which JSON Schema drafts are supported?
Draft 4, Draft 6 (checked with Draft 7 rules), Draft 7, 2019-09 and 2020-12. The draft is read from $schema, and you can override it for each schema.
Can I move my stash to another browser?
Yes. Export downloads the whole stash as one JSON file, and Import in the other browser adds those schemas, skipping exact duplicates. Import also accepts a single JSON Schema file.
What are the example schemas?
Four starter schemas added on your first visit to show what the stash can hold. They are tagged example; delete them one by one or use Remove examples.