A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

Questions that may not necessarily have a clear-cut right or wrong answer and are often subjective. If your question isn't a bug report, feature request, or request for assistance, or question with a …
Proposals for new features on the Stack Exchange network, or requests for a change to an existing feature.
23714 questions
A request for assistance with one of the site's features.
22968 questions
Indicates a reproducible problem on the site that you believe is due to a mistake, malfunction, or programming error.
Indicates that the report has been resolved through the implementation of a feature or the fixing of a bug.
Questions specific to stackoverflow.com should be asked on meta.stackoverflow.com; such questions will be closed here. This is for questions about the Stack Overflow site that still relate to the SE n…
For questions about the behavior or usage of tags, which are keywords or labels that categorize and group your question with other, similar questions.
Measurement of a user's contributions to the site, and the extent to which the community "trusts" that user with extra privileges.
small addenda to each question or answer, intentionally limited in size and formatting and intended to prompt clarifying edits.
For questions about the /review path where users can view and act on posts by other users that the system thinks may need attention.
for questions regarding the design of the Stack Exchange websites; e.g., for issues with the layout.
For questions about the process of editing, how edits work, and other general inquiries about the edit system.
For questions regarding the nature of a "question" on Stack Exchange sites; e.g. how to ask, whether specific questions are appropriate, etc.
Real time, stateful web chat that's a part of every Stack Exchange site.
For questions about the flagging process, how flags are handled, etc. If you have a question about chat flags, use [chat-flags] instead.
For questions about the suggested edit process, which allows users without editing privileges to "suggest" edits, to be reviewed by users with editing privileges.
for questions about answers: how to answer, whether specific answers are appropriate, and so forth.
Awarded to encourage and incentivize positive community actions within the site.
intentional and not subject to change
2377 questions
Questions about the user profile page, which contains a list of all the questions, answers, and an audit trail of the user's activity on the site.
After looking through the site list, https://stackexchange.com/sites, don't know where to ask your question on the Stack Exchange Network? Give as much detail as possible about the question you'd like…
Support for this feature has moved to Meta Stack Overflow! A service (now called Jobs) offered by Stack Exchange that allows programmers (and others) to find jobs, and employers to find great progr…
2142 questions
Questions about the built-in search functionality of this site powered by ElasticSearch.
NO LONGER SUPPORTED. This tag is to be used for the official Stack Exchange application only. The application is available in the Google Play store, for Android 4.1 and up. When posti…
Peer voting on questions and answers gives users most of their reputation, and also usually controls how posts are sorted to the top.
the process by which users can vote to close a question. You gain the ability to cast close votes when you reach 3,000 Reputation on graduated sites, and a lesser amount is needed o…
1898 questions
Indicates that the feature request will not be implemented, or that a bug will not be fixed at present time.
1752 questions
the Stack Exchange Network staging zone. It's where groups of experts come together to build new Q&A sites that work just like Stack Overflow. Area 51 has its own discussion site, Area 51 D…
1730 questions
a way to get additional attention for a question by offering some of your own reputation for great answers.
a lightweight, plain-text, markup language. It is used across the entire Stack Exchange network for post formatting (Questions, answers, wikis, chat).
Questions specific to down-votes, the community's way of telling peers that their content can be improved. Down-votes on meta site have different meanings.
for questions about the entire network of Q&A sites that make up the Stack Exchange network.
For questions about the user interface elements (inputs, checkboxes, etc) that make up this site. For questions about the design of elements, use the design tag.
referring to the process of identifying and closing questions that are duplicates of another question.
1473 questions
no longer supported. This tag is for the Official Stack Exchange application only. The app is available in the App Store, for iOS 8+ on iPhones and iPads. When posting bug report…
1405 questions
HTML links, generally those created within the network on questions, answers, or the site itself.
1401 questions
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