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 26th to 50th out of 126 currently tracked.
| Rank | Name | Market share |
|---|
| 26 |
 Closure LibraryA low-level JavaScript library designed for building complex and scalable web applications. FreeOpen sourceLegacy |
0.6% |
| 27 |
 TurbolinksA JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy |
0.6% |
| 28 |
 AlexaA web traffic analysis service from Amazon that was discontinued in 2022. Legacy |
0.6% |
| 29 |
 Microsoft FrontPageA WYSIWYG HTML editor and website administration tool that was part of Microsoft Office until it was discontinued in 2003. $149Legacy |
0.5% |
| 30 |
 iScrollA high-performance JavaScript library for smooth scrolling. FreeOpen sourceLegacy |
0.5% |
| 31 |
 RawGitA public CDN for serving files from raw.githubusercontent.com with the correct content types. FreeLegacy |
0.5% |
| 32 |
 OribiAn all-in-one marketing analytics solution acquired by LinkedIn. Legacy |
0.4% |
| 33 |
 YUIA legacy, open-source JavaScript and CSS library for building interactive web applications with a focus on modular architecture and cross-browser consistency. FreeOpen sourceLegacy |
0.4% |
| 34 |
 CrittersA deprecated Webpack plugin that inlines your app's critical CSS and lazily loads the rest. FreeOpen sourceLegacy |
0.4% |
| 35 |
Shadowbox A lightbox library for photos and videos, last released in 2014. FreeOpen sourceLegacy |
0.4% |
| 36 |
 PrerenderA deprecated browser hint that instructed web browsers to preload and render a web page in the background before navigation occurred. Legacy |
0.4% |
| 37 |
Cufon A discontinued JavaScript library that performs text replacement on web pages, using the canvas element and VML to render fancy fonts. FreeOpen sourceLegacy |
0.4% |
| 38 |
Google +1 Button Mountain View, California, United StatesThe sharing button code for the discontinued Google +1 service. Legacy |
0.4% |
| 39 |
Lightbox for Bootstrap A lightbox module for Bootstrap that supports images, YouTube videos and galleries - built around Bootstrap's Modal plugin. FreeOpen sourceLegacy |
0.4% |
| 40 |
 Oracle MoatA measurement and marketing analytics suite designed to measure media performance across digital and TV advertising campaigns. Legacy |
0.4% |
| 41 |
 Google Sign-InA deprecated JavaScript library that has been superseded by Google Identity services for Web. FreeLegacy |
0.3% |
| 42 |
 Salesforce ChatA legacy live chat solution from Salesforce that was retired in February 2026. Legacy |
0.3% |
| 43 |
 qTranslate-XA discontinued WordPress plugin used for managing dynamic multilingual content on websites. FreeOpen sourceLegacy |
0.3% |
| 44 |
 Prefix-freeA legacy script that adds browser prefixes to CSS code when needed for old browsers. FreeOpen sourceLegacy |
0.2% |
| 45 |
Audience Studio San Francisco, California, United StatesA data management platform that was retired in February 2024. Legacy |
0.2% |
| 46 |
 Adobe MuseA discontinued desktop application for designing web pages with intuitive, visual tools. $24.99+/monthLegacy |
0.2% |
| 47 |
 Google PodcastsA podcasting directory that was shut down in mid-2024 with the migration to YouTube Music. Legacy |
0.2% |
| 48 |
 Material Design LiteA legacy user interface framework that implements Material Design components using plain CSS, JavaScript, and HTML without external dependencies. FreeOpen sourceLegacy |
0.2% |
| 49 |
MSHTML Redmond, Washington, United StatesAn editor based on the MSHTML component of the discontinued Internet Explorer browser. Legacy |
0.1% |
| 50 |
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% |
