What third-party tools, plugins, addons, widgets are there for the trilogy websites?

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  • If you're here, you should likely check out Stack Apps instead, Stack Exchange's site specifically devoted to supporting and hosting apps and scripts which integrate with Stack Exchange sites and the official Stack Exchange API.
    – zcoop98
    Commented Sep 23, 2021 at 19:26

7 Answers 7


List of Third-Party Tools

Note: These are NOT official applications, and are NOT officially sanctioned or supported.
Note: some of these are specific to Stack Overflow

GreaseMonkey scripts


There is also a specific site for this: stackapps.com, which has 'apps' and 'scripts' tags.

Additional scripts can be found on Userscripts.org by searching for "Stack Overflow."

The use of the so-addon tag is encouraged for scripts, plug-ins, browser add-ons and other tools that are posted to Meta Stackoverflow.

Broken links that were deleted

  • Many of the greasemonkey links are broken. :(
    – braX
    Commented Feb 3, 2020 at 6:03

I have just made a Windows Sidebar Gadget for Stack Overflow. Take a look here.

I have got some questions on whether it is possible two have multiple gadgets. Yes, that is possible. You can have multiple gadgets, for example like this (A Stack Overflow and a ServerFault gadget):

I have published the gadget with source code on CodePlex.

  • Released v1.0.2.0 which brings the possibility to click on your displayname to go to your profile page.
    – Magnus
    Commented Jun 2, 2009 at 19:28
  • Released v1.1.0.0 with support for ServerFault.com
    – Magnus
    Commented Jun 13, 2009 at 18:49
  • Released v1.3.0.0 Adds support for SuperUser.com and Meta.StackOverflow.com. flairgadget.codeplex.com
    – Magnus
    Commented Jul 17, 2009 at 6:04
  • Now how about including the SE 2.0 sites? I love your gadget, but I'm most active on Gaming.SE. ;) Commented Feb 16, 2011 at 19:24

I've just finished a StackOverflow.com Flair Widget for the Mac OS X Dashboard.
It would be nice if you could include it in the list.

Does anyone have a positive answer to this question:
Is there a AJAX or JSON interface to retrieve the stackoverflow.com userId for a given username?

  • Hi, I'm just trying out your OS X widget for some days now and it always again happens that it resets the userid to yours. You probably don't notice it since you put your own as default, but try switching to some other id, just to test it. Unfortunately I did not yet figure out when this happens..
    – Juri
    Commented Jun 18, 2009 at 14:53
  • It happened to me once, too, but I don't know what caused the reset... I'd really appreciate more info if you find out what causes this... It's my first widget :p but I'll check.
    – Huxi
    Commented Jun 19, 2009 at 3:54

StackOverflow.com Badge to display in your Blog

This is a user control written in ASP.NET, but could be easily converted for other server-side platforms, or even converted to JavaScript with the help of a JSON service.

  • Could you please add this to the list in the community wiki answer and delete this answer.
    – Sam Hasler
    Commented Oct 29, 2008 at 22:12
  • i'd add it...but the answer would still be there.
    – jjnguy
    Commented Oct 30, 2008 at 2:59
  • It says its ASP.NET code. Does that badge display on Mac and Linux boxes? On Apache-served pages? If not, I'd rather see something a little more portable.
    – T.E.D.
    Commented Oct 30, 2008 at 14:00
  • When served by a machine running ASP.NET (mostly Windows machine, but Linux servers can run it using MONO), it will produce HTML that is viewable by a browser running under any OS.
    – James Curran
    Commented Nov 17, 2008 at 20:16

Highlight comment on hover

Add the following CSS to Firefox's userContent.css file or add a Stylish rule and when the mouse is hovering over a comment it will be highlighted so it's easier to keep your place and match comments with names.

@-moz-document domain("stackoverflow.com") {
  .comment:hover                  { background-color: #E5E5E5 !important; }
  .comment:hover .accepted-answer { background-color: #D9F5D9 !important; }
  .comment:hover .owner-answer    { background-color: #D6E4EE !important; }

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