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.
javascript× 1603980
JavaScript (not to be confused with Java) is a high-level, dynamic, multi-paradigm, weakly-typed language used for both client-side and server-side scripting. Its primary use is in rendering and allo…
java× 1406190
Java (not to be confused with JavaScript or JScript or JS) is a general-purpose object-oriented programming language designed to be used in conjunction with the Java Virtual Machine (JVM). "Java platf…
c#× 1202610
a high level, object-oriented programming language that is designed for building a variety of applications that run on the .NET Framework (or .NET Core). C# is simple, pow…
php× 1190642
a widely used, high-level, dynamic, object-oriented and interpreted scripting language primarily designed for server-side web development.
android× 1096399
Google's mobile operating system, used for programming or developing digital devices (Smartphones, Tablets, Automobiles, TVs, Wear, Glass, IoT). For topics related to Android, use Android-s…
python× 941600
a dynamic and strongly typed programming language designed to emphasize usability. Two similar but mostly incompatible versions of Python are in widespread use (2 and 3). If you have a versi…
jquery× 908244
a popular cross-browser JavaScript library that facilitates Document Object Model (DOM) traversal, event handling, animations, and AJAX interactions by minimizing the discrepancies across br…
html× 744423
the standard markup language used for structuring web pages and formatting content. HTML describes the structure of a website semantically along with cues for pres…
c++× 567204
a general-purpose programming language. It was originally designed as an extension to C, and keeps a similar syntax, but is now a completely different language. Use this tag for questions about…
ios× 560452
the mobile operating system running on the Apple iPhone, iPod touch, and iPad. Use this tag [ios] for questions related to programming on the iOS platform. Use the related tags [objective-c] an…
css× 532247
a representation style sheet language used for describing the look and formatting of HTML (Hyper Text Markup Language), XML (Extensible Markup Language) documents and S…
mysql× 516020
a free, open source Relational Database Management System (RDBMS) that uses Structured Query Language (SQL). DO NOT USE this tag for other DBs such as SQL Server, SQLite etc. These are diff…
sql× 437757
a language for querying databases. Questions should include code examples, table structure, sample data, and a tag for the DBMS implementation (e.g. MySQL, PostgreSQ…
asp.net× 332642
a Microsoft web application development framework that allows programmers to build dynamic web sites, web applications and web services. It is useful to use this tag in conjunction with the…
ruby-on-rails× 291215
an open source full-stack web application framework written in Ruby. It follows the popular MVC framework model and is known for its "convention over configuration" approach to applic…
objective-c× 283773
should be used only on questions that are about Objective-C features or depend on code in the language. The tags [cocoa] and [cocoa-touch] should be used to ask about Apple's frameworks or cl…
c× 276514
a general-purpose computer programming language used for operating systems, libraries, games and other high performance work. This tag should be used with general questions concerning the C langu…
.net× 267435
a software framework designed mainly for the Microsoft Windows operating system. It includes an implementation of the Base Class Library, Common Language Runtime (commonly referr…
arrays× 262126
an ordered data structure consisting of a collection of elements (values or variables), each identified by one or multiple indexes. When asking about specific variants of arrays, use these…
angularjs× 251511
Use for questions about AngularJS (1.x), the open-source JavaScript framework. Do NOT use this tag for Angular 2 or later versions; instead, use the [angular] tag.
r× 235283
a free, open-source programming language and software environment for statistical computing, bioinformatics, visualization and general computing. Provide minimal, reproducible, representative exa…
json× 232357
a textual data interchange format and language-independent. Use this tag when this text format is involved. DO NOT USE THIS TAG FOR NATIVE JAVASCRIPT OBJECTS OR JA…
sql-server× 230697
a relational database management system (RDBMS). Use this tag for all SQL Server editions including Compact, Express, Azure, Fast-track, APS (formerly PDW) and Azure SQL DW. Do…
node.js× 223027
an event-based, non-blocking, asynchronous I/O framework that uses Google's V8 JavaScript engine and libuv library. It is used for developing applications that make heavy use of the ability…
iphone× 218987
unless you are addressing Apple's iPhone and/or iPod touch specifically. For questions not dependent on hardware, use the tag [ios]. More tags to consider are [xcode] (but only if …
ruby× 194284
a multi-platform open-source, dynamic object-oriented interpreted language, created by Yukihiro Matsumoto (Matz) in 1995. The [ruby] tag is for questions related to the Ruby language, includin…
swift× 190569
a general-purpose, open-source programming language developed by Apple Inc. for their platforms and Linux. Use the tag only for questions about language features, or requiring code in Swift. …
regex× 187314
Regular expressions provide a declarative language to match patterns within strings. They are commonly used for string validation, parsing, and transformation. Since regular expressions are not fully …
ajax× 186164
a technique for creating seamless interactive websites via asynchronous data exchange between client and server. AJAX facilitates communication with the serve…
xml× 171902
a flexible, structured document format that defines human- and machine-readable encoding rules.
asp.net-mvc× 169712
an open source web application framework and tooling that implements a version of the model-view-controller (MVC) pattern tailored towards web applications and built upon …
django× 168552
an open source server-side web application framework, written in Python. It is designed to reduce the effort required to create complex data-driven websites and web applications, with a spec…
linux× 163230
LINUX QUESTIONS MUST BE PROGRAMMING RELATED. Use this tag only if your question relates to programming using Linux APIs or Linux-specific behavior, not just because you happen to run your code on Linu…
excel× 144026
Only for questions on programming against Excel objects or files, or complex formula development. You may combine the Excel tag with VBA, VSTO, C#, VB.NET, PowerShell, OLE automation, and other progra…
database× 143113
an organized collection of data. It is the collection of schemas, tables, queries, reports, views, and other objects. The data are typically organized to model aspects of reality in a wa…
