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Free JSON Formatter version history - 3 versions

Free JSON Formatter by Andret2344

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Free JSON Formatter version history - 3 versions

  • Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.

  • Latest version

    Version 0.2.1

    Released Jul 13, 2026 - 35.72 KB
    Works with firefox 128.0 and later
    • Privacy wording in README.md, SECURITY.md, and PRIVACY.md now describes both parts of the
      extension's access: the storage API permission and the content-script site access that lets it
      detect a JSON document served from any URL. Nothing about what the extension stores, reads, or
      sends changed.
    • The settings popup states that JSON is processed locally in the tab and nothing is uploaded.

    Source code released under MIT License

    Download Firefox and get the extension
    Download file

  • Older versions

    Version 0.2.0

    Released Jul 12, 2026 - 35.66 KB
    Works with firefox 128.0 and later
    • Line numbers, in a gutter, written at render time - a line keeps the number it has in the fully
      expanded document, so folding a branch leaves a gap instead of renumbering everything below it.
    • Line links - click a line number to put #L21 in the address bar. Opening that link reveals the
      line again, even when it sits inside a branch nobody has expanded.
    • Copy path - hover any line and copy its path as a console-ready accessor chain
      (json.items[0].id).
    • json in devtools - a page-world script exposes the parsed document to the console, lazily.
    • Expand all / Collapse all, run in cancellable batches so a huge document does not lock the tab;
      Ctrl/Cmd+click on a node folds or opens its whole level.
    • Automatic initial expansion depth, chosen from the document's byte size, element count, and
      nesting depth (a bounded scan - it never walks a whole multi-megabyte document to decide).
    • Indent guides, highlighted for the nesting level under the pointer.
    • Large-payload warning in the toolbar when a document is big enough that rendering may feel slow.
    • Firefox support (Manifest V3, strict_min_version 128 - the first release with "world": "MAIN").
    • PRIVACY.md, naming every key the extension writes to your device.
    • docs/COMPARISON.md.
    • Collections now render lazily: a collapsed branch is not merely hidden, it does not exist in
      the DOM until you open it. Large documents stay responsive.
    • The viewer is built off-DOM and swapped into the page in one synchronous step - no flash of
      recoloured raw text.
    • Source restructured into content/, viewer/, shared/, and popup/.
    • Still one permission (storage), still no network requests. The end-to-end suite now asserts the
      second of those against a real browser.

    Source code released under MIT License

    Download file

  • Version 0.1.0

    Released Jul 8, 2026 - 26.3 KB
    Works with firefox 115.0 and later

    Source code released under MIT License

    Download file