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Skip to contentGenerate JSON Schema from samples, validate payloads and lint OpenAPI specs in one developer workspace.
Schema Studio closes the loop between sample JSON and production contracts. Infer schemas, validate API responses and convert curl commands without leaving the browser tab. Browse related Tentaco tools on this hub, open a studio mode when you need a fuller workspace, and keep files on your device whenever the tool runs locally.
Paste sample JSON payload
Run schema generator
Validate production responses against schema
Export schema JSON
JSON Schema Generator — infer from sample
Infer JSON Schema from sample JSON. Tentaco JSON Schema Generator: review input and get an instant result — free, no sign-up.
JSON Schema Validator — validate payloads
Validate JSON against a draft-07 schema. Tentaco JSON Schema Validator: review input and get an instant result — free, no sign-up.
Format JSON online — free validator & pretty print
Beautify, minify and validate JSON in your browser. Syntax errors with line hints — copy or download instantly.
Curl Converter — curl to fetch JavaScript
Turn a URL, method, headers and body into a cURL command. Tentaco cURL Command Generator: review input and get an instant result — free, no sign-up.
Privacy depends on the selected tool. Check the privacy block on each tool page for file transfer, processing location and storage.
LocalThis tool processes data locally in your browser. Tentaco does not receive your file contents for this mode.
Draft-07 is the default validator profile in Schema Studio modes.