Friday, May 2, 2014

Browser Kernels

Browser Kernels and Their Representative Browsers

Data source:

Notable layout engines


Current/maintained projects are in boldface.

Trident shells

Other software publishers have built browsers and other products around Microsoft's Trident engine. The following browsers are all based on that rendering engine:


  • AT&T Pogo (discontinued; based on Firefox)
  • Flock (discontinued; was based on Firefox until version 2.6.1, and based on Chromium thereafter)
  • Swiftfox (discontinued; processor-optimised builds based on Firefox)
  • Swiftweasel (discontinued; processor-optimised builds based on Iceweasel)
  • xB Browser (discontinued; formerly XeroBank Browser and Torpark), portable browser for anonymous browsing, originally based on Firefox
  • K-Ninja for Windows (discontinued; based on K-Meleon)
  • K-MeleonCCF ME for Windows (based on K-Meleon core, mostly written in Lua)

Gecko- and Trident-based

Browsers that use both Trident and Gecko include:

Webkit- and Trident-based

Gecko-, Trident- and WebKit-based

Browsers that can use TridentGecko and WebKit include:




For Java platform

Specialty browsers

Browsers created for enhancements of specific browsing activities.



  • Ghostzilla (Blends into the GUI to hide activity)
  • Prodigy Classic (Executable only within the application)
  • Flock (To enhance social networking, blogging, photo-sharing, and RSS news-reading)
  • RockMelt (Designed to combine web browsing, and social activities such as Facebook and Twitter into a unified one window experience)
  • Songbird (browser with advanced audio streaming features and built in media player with library.)

Mosaic based

Mosaic was the first widely used web browser. The National Center for Supercomputing Applications (NCSA) licensed the technology and many companies built their own web browser on Mosaic. The best known are the first versions of Internet Explorer and Netscape.