JSONTool is a free Chrome extension designed for efficient JSON formatting, comparison, tabular representation, sorting, and history caching. It offers a modern editing experience with features like syntax highlighting, code folding, and regex search, all powered by CodeMirror 6 for rapid response. Users can beautify or compact JSON data with a single click and utilize advanced sorting capabilities for object key-value pairs, ensuring seamless data manipulation.

The extension also boasts an interactive table view that transforms complex JSON arrays into manageable spreadsheets, complete with adjustable column widths and instant keyword filtering. Its Diff Mode enables side-by-side comparisons with real-time change highlighting, while the built-in history feature automatically saves snapshots of key operations, allowing users to recover previous versions of their data effortlessly. Overall, JSONTool enhances workflow efficiency for both casual users and professionals.