Every tool you need, in one place
Format, convert, compare, and calculate with free browser tools. All 100% easy to use — your data stays on your device.
JSON Viewer
Inspect, format, and browse JSON
JSON to PHP
Convert JSON into a PHP array literal
JSON Beautify
Pretty-print JSON with 2, 3, or 4 space indent
JSON Compare
Diff two JSON documents; matching and differing nodes listed by path
JSON Diff
Compare JSON A vs B: added, removed, changed, unchanged
JSON Schema Validator
Validate JSON data against a JSON Schema
JSON Path Tester
Query JSON with JSONPath expressions
About Free Tool Mate
Free Tool Mate brings together free online developer tools for JSON, XML, SQL, YAML, text, images, and everyday calculations in one fast workspace. Format and validate JSON, beautify SQL queries, convert XML to JSON, decode Base64 and JWT tokens, generate UUIDs, resize images, and much more. Every tool runs entirely in your browser, so your data is never uploaded to a server. No sign-up, no installs, and no limits.