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wondered if Stack Overflow was built in Ruby on Rails
. I consider that a compliment! This question has been covered in some detail in our
C#
development environment
Stack Overflow\u003C/a> for some reason:\n\n\u003Cstrong>What was Stack Overflow built with?\u003C/strong>\n\nSome even \u003Ca href=\"http://stackoverflow.com/questions/67131/is-stackoverflowcom-written-in-ruby-on-rails\">wondered if Stack Overflow was built in Ruby on Rails\u003C/a>. I consider that a compliment!\n\nThis question has been covered in some detail in our \u003Ca href=\"http://blog.stackoverflow.com/category/podcasts/\">podcasts\u003C/a>, of course, but I know not everyone has time to listen to a bunch of audio footage to find the answer to their question. So, in that spirit, \u003Cstrong>here's the technology \"stack\" of Stack Overflow\u003C/strong>, the stuff \u003Ca href=\"http://blog.stackoverflow.com/2008/08/special-development-team-podcast/\">Jarrod, Geoff, and I\u003C/a> used to build it:\n\n\u003Ctable width=\"600\" cellspacing=\"4\" cellpadding=\"4\">\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>framework\u003C/td>\n\u003Ctd>\u003Ca href=\"http://en.wikipedia.org/wiki/ASP.NET\">Microsoft ASP.NET\u003C/a>\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Ctd>language\u003C/td>\n\u003Ctd>\u003Ca href=\"http://en.wikipedia.org/wiki/C_Sharp_(programming_language\">C#\u003C/a>\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Ctd>development environment\u003C/td>\n\u003Ctd>\u003Ca href=\"http://msdn.microsoft.com/en-us/library/bb425822.aspx\">LINQ to SQL\u003C/a>\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Ctd>source control\u003C/td>\n\u003Ctd>\u003Ca href=\"http://en.wikipedia.org/wiki/Subversion_(software)\">Subversion\u003C/a> (now \u003Ca href=\"http://blog.stackoverflow.com/2010/04/stack-overflow-and-dvcs/\">Mercurial through Kiln\u003C/a>)\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Ctd>compare tool\u003C/td>\n\u003Ctd>\u003Ca href=\"http://www.scootersoftware.com/index.php?from=codinghorror\">Beyond Compare\u003C/a>\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Ctd>source control integration\u003C/td>\n\u003Ctd>\u003Ca href=\"http://www.visualsvn.com/\">VisualSVN\u003C/a> (now, \u003Ca href=\"http://visualhg.codeplex.com/\">VisualHg\u003C/a>)\u003C/td>\n\u003C/tr>\n\u003C/tbody>\n\u003C/table>\n\nWe have a few other minor dependencies as well, such as \u003Ca href=\"http://recaptcha.net/\">ReCaptcha\u003C/a>, \u003Ca href=\"http://code.google.com/p/dotnetopenid/\">DotNetOpenId\u003C/a>, and the \u003Ca href=\"http://wmd-editor.com/\">WMD\u003C/a> control (which we subsequently \u003Ca href=\"http://blog.stackoverflow.com/2009/01/wmd-editor-reverse-engineered/\">rewrote\u003C/a>), but that's about it.","html","",[306,313,319,325],{"title":307,"publishedAt":308,"slug":309,"sponsored":25,"_id":312},"Smarter insights, stronger teams: New features for Stack Overflow for Teams","2025-04-15T13:00:00.000Z",{"current":310,"_type":311},"smarter-insights-stronger-teams-new-features-for-stack-overflow-for-teams","slug","6961af9e-5675-496e-8953-62ccdfd960ac",{"slug":314,"sponsored":25,"_id":316,"title":317,"publishedAt":318},{"current":315,"_type":311},"like-self-driving-cars-fully-ai-automated-sysadmins-don-t-exist","82488e1d-cb22-4e62-914b-0d435fcb3782","Like self-driving cars, fully AI-automated sysadmins don't exist","2025-04-14T14:10:54.338Z",{"_id":320,"title":321,"publishedAt":322,"slug":323,"sponsored":25},"b4f6b816-07b8-4594-9686-26cfcc04b360","Open-source AI: Are younger developers leading the way?","2025-04-07T14:00:00.000Z",{"current":324,"_type":311},"open-source-ai-are-younger-developers-leading-the-way",{"sponsored":25,"_id":326,"title":327,"publishedAt":328,"slug":329},"5955b744-57e0-4f5d-baeb-1eeb64a06c87","Using GenAI as a learning tool, not a crutch","2025-04-04T16:15:00.000Z",{"current":330,"_type":311},"using-genai-as-a-learning-tool-not-a-crutch",[332],{"publishedAt":333,"_id":334,"title":335,"slug":336,"sponsored":25},"2025-04-15T07:40:00.000Z","eb339c31-15f7-4bcf-ae6f-74cf1ed984c6","How AI can prevent clinician burnout",{"current":337,"_type":311},"how-ai-can-prevent-clinician-burnout",[339,341,347,353],{"_id":312,"title":307,"slug":340,"publishedAt":308},{"current":310,"_type":311},{"_id":342,"title":343,"slug":344,"publishedAt":346},"00959d01-49b4-4a99-95dc-10de66ae91a0","Boosting collaboration and control: New features for Stack Overflow for Teams",{"current":345,"_type":311},"boosting-collaboration-and-control-new-features-for-stack-overflow-for-teams","2025-03-04T14:00:00.000Z",{"_id":348,"title":349,"slug":350,"publishedAt":352},"b2bcd2b7-1448-4cb5-b862-9f8a61166f30","New year, new features: Level up your Stack Overflow for Teams in 2025",{"current":351,"_type":311},"new-year-new-features-level-up-your-stack-overflow-for-teams-in-2025","2025-01-29T14:00:00.000Z",{"_id":354,"title":355,"slug":356,"publishedAt":358},"d22cb812-f134-4ea3-826f-d4e50f2b0f43","Enterprise 2024.8 release: Maintain a healthy roster of SMEs",{"current":357,"_type":311},"enterprise-2024-8-release-maintain-a-healthy-roster-of-smes","2024-12-10T15:45:47.518Z",{"lastTimestamp":360,"count":361},"2023-05-25T09:45:54Z",8,["Reactive",363],{},["Set"],["ShallowReactive",366],{"article":25,"sanity-UQLCzVkrS8":25},"/2008/09/21/what-was-stack-overflow-built-with/"]