JSON Parser Pro — a free, 100% browser-based JSON toolkit, 15 tools in one place. Format, validate, beautify and minify JSON. Auto-repair broken JSON (trailing commas, comments, missing brackets). Generate and validate JSON Schema. Convert JSON to YAML, XML, CSV. Decode JWT, encode Base64, diff JSON objects, query with JSONPath, generate TypeScript types. No signup, no account — your data never leaves the browser.