Legacy technologies are platforms and tools that have been discontinued or shut down and no longer operate. Some are completely defunct, while others remain functional but unsupported.
The following list shows the legacy technologies ranked from 51st to 75th out of 130 currently tracked.
| Rank | Name | Market share |
|---|
| 51 |
Foursquare New York, United StatesA location-based social networking app that allowed users to discover and review local businesses and attractions. Free$$$Legacy |
0.1% |
| 52 |
 MSHTMLAn editor based on the MSHTML component of the discontinued Internet Explorer browser. Legacy |
0.1% |
| 53 |
 SpryA deprecated JavaScript framework by Adobe that enables the rapid development of Ajax-powered web pages. FreeOpen sourceLegacy |
0.1% |
| 54 |
 AT InternetA fully GDPR-compliant web analytics solution before Piano's acquisition of the company. €355+/monthLegacy |
0.1% |
| 55 |
 StackPathA content delivery network that shut down in March 2024. Legacy |
0.1% |
| 56 |
 GiropayA German payment method based on online banking that was discontinued on December 31, 2024. Legacy |
0.1% |
| 57 |
 HeadJSA JavaScript loader that loads scripts in parallel, but executes them in order. FreeOpen sourceLegacy |
0.1% |
| 58 |
 Pocket ButtonThe Pocket Button allowed users to save content to Pocket, a social bookmarking service that shut down in 2025. FreeLegacy |
0.09% |
| 59 |
 StitcherA streaming platform that specialized in the creation, distribution, and monetization of podcasts. Legacy |
0.08% |
| 60 |
 PayPal Marketing SolutionsA suite of marketing and analytics tools from PayPal that helps merchants analyze shopper behavior and increase conversion through targeted on-site messaging. Legacy |
0.08% |
| 61 |
 Fort AwesomeA commercial icon font service that allowed users to create custom icon fonts by selecting specific icons for their projects. Free$49+/yearLegacy |
0.08% |
| 62 |
IBM WebSphere Homepage Builder Armonk, New York, United StatesA WYSIWYG HTML editor for Windows and Linux that was available until the mid-2000s. Legacy |
0.07% |
| 63 |
 Naver PostA South Korean mobile-optimized user-generated content platform that let creators publish and share expert posts on various topics before it was discontinued in April 2025, after 12 years of service. FreeLegacy |
0.07% |
| 64 |
 iWebA WYSIWYG template-based website building tool that had been released by Apple Inc. from 2006 to 2011. Legacy |
0.07% |
| 65 |
 SignalA customer intelligence platform that leveraged tag management and real-time data collection. Legacy |
0.07% |
| 66 |
 Adobe GoLiveA WYSIWYG HTML editor that was discontinued in 2008. $299Legacy |
0.07% |
| 67 |
 Google Code ArchiveA code hosting service for open-source projects. FreeLegacy |
0.07% |
| 68 |
 Visitor QueueB2B lead generation and website personalization software that identified businesses visiting a website and provided sales teams with contact details and firmographic data. $39+/monthLegacy |
0.05% |
| 69 |
 GlitchA collaborative programming environment that was shut down after being acquired by Fastly. Legacy |
0.05% |
| 70 |
ES6 Shim Provides compatibility shims so that legacy JavaScript engines behave as closely as possible to ECMAScript 6. FreeOpen sourceLegacy |
0.05% |
| 71 |
 Serif WebPlusA legacy WYSIWYG website builder for Microsoft Windows that was discontinued in 2016. Legacy |
0.04% |
| 72 |
 J2StoreAn open-source e-commerce extension for Joomla that is no longer maintained. FreeOpen sourceLegacy |
0.04% |
| 73 |
 AngularJS MaterialAn implementation of Google's Material Design Specification (2014-2017) for AngularJS developers. FreeOpen sourceLegacy |
0.04% |
| 74 |
 NetObjects FusionA discontinued web design software for Windows and Mac OS. $163.95Legacy |
0.04% |
| 75 |
 HypernovaA legacy open-source service from Airbnb that renders JavaScript views on the server to deliver HTML for better page load and search engine indexing. FreeOpen sourceLegacy |
0.03% |
