JSON Tools
Format, validate, minify JSON
Visual Preview
See your JSON as a collapsible tree or a real HTML table
Data Converters
Convert between JSON and other data formats
JSON Diff
Compare two JSON documents key-by-key
Code Generators
Turn JSON into typed classes for any language
About JSON Tools
What this tool does
A single-page JSON workbench: pretty-print, minify, validate, escape, and unescape JSON — all locally in your browser, with the result available to copy with one click.
When to use it
- Cleaning up an API response before sharing it
- Validating that a config or webhook payload parses correctly
- Minifying for embedding in JavaScript or HTML
- Escaping JSON for use as a string value inside another JSON document
Frequently asked questions
Yes — it uses the browser's built-in JSON.parse, which strictly enforces RFC 8259.
Minify removes whitespace from valid JSON. Escape converts a string into a JSON-string literal (so quotes, backslashes, and control chars are properly encoded).
No. Everything stays in your browser tab.
Common causes: trailing commas, single quotes instead of double, unquoted keys, or comments. Fix those and it'll parse.
Embed this tool on your site
Drop a one-line iframe snippet into any blog, lesson plan, or knowledge base. Powered-by-Toolenza link included.
Embed this tool
Paste this snippet into any HTML page. The tool runs entirely in your reader's browser.
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