Best JSON Tools
A hand-checked list of the best free json tools for developers. Every tool runs in your browser — no upload, no login, no API key.
16 tools
JSON Formatter
JSON
Pretty-print and beautify JSON with custom indentation.
JSON Validator
JSON
Validate JSON syntax and see detailed error diagnostics.
JSON Minifier
JSON
Compress JSON by removing whitespace and show bytes saved.
JSON Compare
JSON
Diff two JSON documents and list added, removed, and changed paths.
JSON Viewer
JSON
Explore JSON as a collapsible, color-coded tree.
JSON to XML
JSON
Convert JSON into well-formed, indented XML.
JSON to YAML
JSON
Convert JSON documents to clean, readable YAML.
JSON to CSV
JSON
Flatten a JSON array of objects into a CSV spreadsheet.
JSON String Escape
JSON
Escape special characters for use inside a JSON string.
JSON String Unescape
JSON
Reverse JSON string escaping back to readable text.
JSON Path Finder
JSON
Explore JSON paths and evaluate simple JSONPath queries.
JSON Schema Generator
JSON
Infer a JSON Schema from a sample JSON document.
JSON Repair / Auto-fixer
JSON
Auto-fix broken JSON: quotes, trailing commas, comments, and more.
JSON Key Sorter
JSON
Sort JSON object keys alphabetically, naturally, or by array field.
JSON Merger
JSON
Merge two or more JSON documents with shallow/deep strategies.
JSON Schema Validator
JSON
Validate JSON data against a JSON Schema (Draft-07) in your browser.