JSONView version history - 16 versions
JSONView by Ben Hollis
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 3.1.0
Released 14 Jan 2025 - 82.55 kBWorks with firefox 109.0a1 and laterFixed conflicts with some SharePoint sites.Source code released under MIT Licence
Download Firefox and get the extensionYou'll need Firefox to use this extensionOlder versions
Version 3.0.2
Released 26 Aug 2024 - 82.4 kBWorks with firefox 109.0a1 and laterFixed a regression in Firefox where JSON not served as UTF-8 (which is technically invalid) caused ugly characters to display in the formatted JSON.Source code released under MIT Licence
Version 3.0.1
Released 19 Jun 2024 - 82.38 kBWorks with firefox 109.0a1 and later- Fixed a regression where floating-point numbers were truncated to integers.Source code released under MIT Licence
Version 3.0.0
Released 16 Jun 2024 - 82.37 kBWorks with firefox 109.0a1 and laterFix a few minor bugs and update to Manifest V3.Source code released under MIT Licence
Version 2.6.1
Released 29 Dec 2023 - 83.53 kBWorks with firefox 42.0 and laterRestore JSONView's ability to work in Firefox without having to manually disable the built-in JSON viewer.Source code released under MIT Licence
Version 2.5.0
Released 17 Dec 2023 - 83.46 kBWorks with firefox 42.0 and laterFix a cross-site scripting vulnerability in the Firefox version of the extension. Also removed the webRequestBlocking permission.Source code released under MIT Licence
Version 2.4.3
Released 7 Jul 2023 - 83.75 kBWorks with firefox 42.0 and later, android 120.0 and laterFixed content type matching for things like application/hal+jsonSource code released under MIT Licence
Version 2.4.2
Released 24 May 2023 - 83.73 kBWorks with firefox 42.0 and laterFix a Firefox-specific issue where text encoding may be correct.Source code released under MIT Licence
Version 2.4.1
Released 11 May 2023 - 83.7 kBWorks with firefox 42.0 and laterMinor fix to data handling that could cause mangled output.Source code released under MIT Licence
Version 2.4.0
Released 3 May 2023 - 83.67 kBWorks with firefox 42.0 and later- Preserve indentation when copying JSON.
- The JSON object is available from the console via the global "data" property. Note: This may go away when JSONView is forced into the new Manifest V3 extension model.
- Increased the number of content types that will be recognized as JSON.
- Added Indonesian localization.Source code released under MIT Licence
Version 2.3.0
Released 6 Jan 2021 - 85.14 kBWorks with firefox 42.0 and laterSwitch to a dark theme when your system is set to dark mode.Source code released under MIT Licence
Version 2.2.1
Released 20 Oct 2020 - 84.93 kBWorks with firefox 42.0 and laterEscape single quotes in generated HTML.Source code released under MIT Licence
Version 2.2.0
Released 5 Sep 2020 - 84.92 kBWorks with firefox 42.0 and laterIgnore case when checking headers.Source code released under MIT Licence
Version 2.1.0
Released 17 Mar 2019 - 84.4 kBWorks with firefox 42.0 and laterJSONView now ignores case when checking headers.Source code released under MIT Licence
Version 2.0.1
Released 19 May 2018 - 84.29 kBWorks with firefox 57.0a1 and later, android 48.0 to 68.** Force encoding to UTF-8Source code released under MIT Licence
Version 2.0.0
Released 13 May 2018 - 84.27 kBWorks with firefox 57.0a1 and later, android 48.0 to 68.*JSONView has been rebuilt for the new Firefox extension model, and now works with newer versions of Firefox.Source code released under MIT Licence