Free Online JSON Tools
JSONBrew
A collection of free online tools to work with JSON data. Convert, compare, query, and transform JSON effortlessly.
Your data never leaves your browser — 100% client-side processing
JSON Formatter
Format, validate, minify, and auto-fix JSON with detailed statistics.
JSON to Code
Convert JSON to TypeScript, Go, Python, Swift, Java, and Kotlin.
JSON Diff
Compare two JSON objects and visualize the differences.
jq Playground
Test and learn jq queries interactively in your browser.
Format Converter
Convert JSON to CSV, YAML, XML, and more.
Tree Viewer
Explore JSON with an interactive, collapsible tree view.
JWT Decoder
Decode JWT tokens, inspect headers and payloads, and verify signatures.
JSON Schema
Generate JSON Schema from data or validate JSON against a schema.