Does this validate JSON Schema?

No—only syntax. Use your API tooling or a schema validator for structure rules.

Very large pastes may feel slow in the browser; trim to the snippet you need for lessons or README examples.

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Valid JSON.

Does this validate JSON Schema?: No—only syntax. Use your API tooling or a schema validator for structure rules.
Large payloads?: Very large pastes may feel slow in the browser; trim to the snippet you need for lessons or README examples.