JSON Tool FAQ
How do I validate JSON?
Paste JSON into the input box and click Validate. The parser checks the content directly in your browser.
Can I minify large JSON payloads?
Yes. Click Minify to remove extra whitespace and reduce payload size for transport or storage.
What does optimize/compress do?
It minifies JSON and reports how many characters were removed compared with pretty-printed output.
Does this tool send data to a server?
No. Formatting, validation, and minification are performed client-side only.
Example input/output
Input: [{"id":1,"name":"Ada"},{"id":2,"name":"Bob"}]
Output: An HTML table with columns id and name, with rows for Ada and Bob.
How it works
This tool parses the JSON array and uses the keys of the first object as column headers. It generates an HTML table with <thead> and <tbody> elements, formatting each array element as a table row. Processing runs in your browser.
Common use cases
- Visualise JSON array data as a table for quick inspection
- Share JSON data snapshots as HTML tables in documentation or reports
- Preview JSON API responses in a human-readable tabular format