JSONView Icon JSONView

JSONView is a Firefox extension that helps you view JSON documents in the browser.

Normally when encountering a JSON document (content type "application/json"), Firefox simply prompts you to download the file. With the JSONView extension, JSON documents are shown in the browser similar to how XML documents are shown. The document is formatted, highlighted, and arrays and objects can be collapsed. Even if the JSON document contains errors, JSONView will still show the raw text. More info in the inaugural blog post.

Once you've got JSONView installed, check out this example JSON file to see the extension in action!

CouchDB users and others who need to have "application/json" sent in the HTTP Accept header to serve JSON properly can set that option in JSONView's options panel.

Screenshots

JSONView Screenshot

Feedback

Have suggestions or bug reports? File them in JSONView's issue tracker on GitHub .

Contributing

JSONView is open source software licensed under the MIT license. Visit the project page on GitHub, fork the source and send a pull request!

If you'd like to contribute to JSONView but don't want to code, consider contributing a translation. Just go to BabelZilla and register as a translator for the JSONView extension. There's not much there to translate.

JSONView News

  • JSONView 0.7 works with Firefox 8+
    November 1, 2011

    Just slightly ahead of the release of Firefox 8, JSONView 0.7 has been approved on the Mozilla Add-ons site. Firefox 8 actually handles JSON documents in the browser for the... [read more]

  • JSONView 0.6
    September 25, 2011

    Last week I released JSONView 0.6 to addons.mozilla.org. This is mostly a bugfix release, but I honestly don't want to change much about such a simple addon. With over 60,000... [read more]

  • JSONView 0.4 with content negotiation
    October 12, 2009

    JSONView 0.4 was just approved on addons.mozilla.org. This one is mostly a bugfix release from 0.3, but I couldn't let it go out without one new feature, so I finally... [read more]

  • Updates to JSONView, XBList, and TopProcess
    October 5, 2009

    I've finally gotten around to doing some maintenance updates on three of my most-used bits of software (JSONView, XBList, and TopProcess), all in the last couple weeks. Now that they're... [read more]

More news...

JSONView is open source software licensed under the MIT License.