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JSON Schema Validator vs JSON Schema CLI: catalog facts
JSON Schema Validator	JSON Schema CLI
Free Free to use in the browser.	Free Free and open source under the AGPL-3.0.
Web	Windows, Command line
Supports JSON Schema drafts from 3 through 2020-12 Instant side-by-side schema and input editing	Formatting, linting, testing and bundling in one tool Works both locally and in CI/CD pipelines
Validation is done on the server, so the data leaves your machine Only validates; no schema generation or formatting	Command-line only, with no graphical interface AGPL license may matter for some redistribution cases
Web application	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0
No account needed	No account needed
Needs internet	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.