My Sunday afternoon project this weekend was to add a bit of jQuery pixie dust to the tag trend graph page. The new Stack Overflow Tag Trends page allows you to choose which tags to compare and produces a graph interactively. You can also capture a link to a particular graph, for example the history for the homework tag is amusing.

Available tags are those that have been used for 100 or more questions (1835 tags total at the moment).

Here's a recent newsworthy graph:

  • Wow, pretty awesome.
    – Sam Becker
    Commented Mar 7, 2010 at 13:42
  • @Greg Hewgill: why is Forth excluded? Today I tried with these four tags: jquery python django forth. Forth is not a very active tag, but still. Commented Mar 13, 2010 at 22:01
  • @Greg Hewgill Can you update the data? It look a little outdated.
    – Horcrux7
    Commented Aug 31, 2011 at 11:26
  • 1
    @Horcrux7: I fixed the post, it was pointing to old links. The top level stats page (for all SE sites) is: hewgill.com/~greg/stackoverflow Commented Aug 31, 2011 at 19:37
  • I think it's informative to see how few Facebook questions there are in comparison to Android questions, especially with all the recent discussion about Facebook.SO. And @Greg, yer links are broken! :) Commented Aug 31, 2011 at 20:20
  • @Chris: Your link is broken, I had already fixed the one in the post :) Commented Sep 1, 2011 at 8:57
  • Well, yes. . .but I copied the link directly from the [link] button on your site. Did I do something wrong? Commented Sep 1, 2011 at 17:24
  • @Chris: My apologies, you are quite right. The [link] button should be fixed now. Commented Sep 1, 2011 at 19:22
  • 2
    Could you re-run your scripts to update the graphs with the data since 2012?
    – oli_obk
    Commented Jul 22, 2015 at 10:05
  • Some tags are missing, is there anything we can do about that? Commented Apr 23, 2016 at 21:20

2 Answers 2


Nice piece of work, @Greg Hewgill.

It will be interesting to see how the the numbers develop as Stack Overflow trends towards a more industry-wide audience.

See, the problem with these "growth rates" is that they reflect primarily the growth of Stack Overflow, not the industry in general. Stack Overflow started with a disproportionately strong .NET presence because of Joel's and Jeff's influence in drawing the initial audience.

So when you see a percentage gain in technologies like PHP or a percentage loss in .NET, that doesn't (necessarily) reflect anything more than the normalization of Stack Overflow's audience coming more in line with the true developer population.


Absolutely cool. And intriguing. Yay for the low number of bugs on Meta :O)

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