Meta Stack Exchange is where users like you discuss bugs, features, and support issues that affect the software powering all 157 Stack Exchange communities.

What is meta?
Here's how it works:
  1. Any Stack Exchange user can ask a question
  2. The community provides support, votes on ideas, and reports bugs
  3. Your voice helps shape the way Stack Exchange operates

This question is similar to Which SE site has the longest name? but regarding tag titles.

Is there any quick way to determine the longest tag titles? Also, is there any length limit on tag titles?

I'm designing a UI and this info would help me to eliminate some boundary cases...

share|improve this question
Just found 'nsfetchedresultscontrolle' tag on SO, obviously missing the last (26th) 'r' character. I assume S.Mark's 25 length limit is right then :) – piobyz Mar 3 '11 at 12:21
we do indeed limit tags to 25 characters at many levels. – Nick Craver Mar 3 '11 at 12:38
up vote 6 down vote accepted

Probably 25 according to api help

"values": "string",
"suggested_buffer_size": 25
share|improve this answer
Exactly 25. Looking at Tags table at, TagName is of type nvarchar(25), so it gets truncated when longer. – Robert Koritnik Feb 5 '14 at 7:46

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .