The following is a list of web browsers for various Unix and Unix-like operating systems. Not all of these browsers are specific to these operating systems; some are available on non-Unix systems as well. Some, but not most, have a mobile version.
Colored items in this table are discontinued.
| Web browser | Layout engine | UI toolkit | Source model | Status | Notes |
|---|---|---|---|---|---|
| Abaco | Custom | Custom (Acme-like) | Open-source | Discontinued | For Plan 9 |
| Amaya | Custom | wxWidgets | Open-source | Discontinued | Also a web page composer tool (HTML editor) |
| Angelfish | Blink | Qt | Open-source | Adaptive browser for KDE and Plasma Mobile using QtWebEngine. | |
| Arena | Custom | Xlib | Open-source | Discontinued | Discontinued testbed for W3C |
| Arora | WebKit | Qt | Open-source | Discontinued | |
| Basilisk | Goanna | XUL | Open-source | Basilisk is a fork of Firefox with substantial divergence, especially for add-ons. | |
| Beonex Communicator | Gecko | GTK+ | Open-source | Discontinued | A separate branch of the Mozilla Application Suite |
| Brave | Blink | GTK | Open-source | Mozilla Public License, version 2 | |
| Camino | Gecko | Cocoa | Open-source | Discontinued | Formerly called Chimera; Requires Mac OS X |
| Conkeror | Gecko | XUL | Open-source | Discontinued | |
| Chromium | Blink | GTK | Open-source | Close affinity with Google Chrome | |
| Dillo | Dillo | FLTK | Open-source | Versions prior to 2.0 were built upon GTK+. | |
| Dooble | Qt WebEngine | Qt | Open-source | BSD License | |
| Fifth | WebKit | FLTK | Open-source | Aimed at replicating the pre-v15 Opera user experience. | |
| Flock | Gecko | XUL | Open-source | Discontinued | Specialised version of Mozilla Firefox |
| Galeon | Gecko | GTK+ | Open-source | Discontinued | |
| GNU IceCat | Gecko | XUL | Open-source | Rebranded Mozilla Firefox, renamed from Iceweasel | |
| Google Chrome | Blink | GTK | Closed source | Based on Chromium - Freeware under Google Chrome Terms of Service | |
| iCab | WebKit | Cocoa | Closed source | Versions prior to 4 used custom layout engine | |
| Iceape | Gecko | XUL | Open-source | Discontinued | Rebranded as SeaMonkey |
| Internet Explorer for Mac | Tasman | Carbon | Closed source | Discontinued | Using Tasman in version 5 |
| Internet Explorer for UNIX | Trident | Motif | Closed source | Discontinued | |
| Kazehakase | Gecko | GTK+ | Open-source | Discontinued | Dormant since 2012 |
| Kirix Strata | Gecko | wxWidgets | Open-source | ||
| Konqueror | KHTML, WebKit | Qt | Open-source | Default web browser for KDE | |
| LibreWolf | Gecko | XUL | Open-source | Soft-fork of Mozilla Firefox with a focus on privacy and security | |
| Midori | Gecko | GTK | Open-source | Default browser for Xfce | |
| Mosaic | Custom | Motif | Closed source | Discontinued | One of the first web browsers |
| Mozilla Application Suite | Gecko | XUL | Open-source | Discontinued | |
| Mozilla Firefox | Gecko | XUL | Open-source | ||
| NetSurf | NetSurf | GTK, Framebuffer | Open-source | NetSurf is not tied to any particular UI toolkits. Currently GTK and framebuffer front end implementations exist. For RISC OS, Amiga and others. | |
| OmniWeb | WebKit | Cocoa | Closed source | Using WebKit since version 5.5 | |
| Opera | Blink | Xlib | Closed source | Opera used its own layout engine, Presto, through version 12.XX. Linux versions were suspended when Opera moved to Blink and resumed with version 26. | |
| Otter Browser | WebKit/Blink (engine) | Qt | Open-source | Aimed at replicating the pre-v15 Opera user experience. | |
| Pale Moon | Goanna | XUL | Open-source | Pale Moon is a fork of Firefox with substantial divergence, especially for add-ons and user interface. | |
| Falkon (QupZilla) | Qt WebEngine | Qt | Open-source | ||
| Rekonq | WebKit | Qt | Open-source | Discontinued | |
| Roccat Browser | WebKit | Cocoa | Closed source | ||
| Safari | WebKit | Cocoa | Closed source | ||
| SeaMonkey | Gecko | XUL | Open-source | Community-developed version of now abandoned Mozilla Application Suite codebase | |
| Shiira | WebKit | Cocoa | Open-source | Discontinued | For Mac OS X only |
| SRWare Iron | Blink | GTK | Closed-source | Based on Chromium, removes information transfer to third parties such as Google by default. Has had its source code available at various points in development but currently has a proprietary codebase | |
| Surf | WebKitGTK | keyboard-driven | Open-source | Minimalist web browser. | |
| Swiftfox | Gecko | XUL | Closed source | Discontinued | Proprietary optimised build of Mozilla Firefox |
| Swiftweasel | Gecko | XUL | Open-source | Discontinued | Optimised build of Mozilla Firefox |
| TenFourFox | Gecko | XUL | Open-source | Discontinued | PowerPC build of Firefox for Mac OS X |
| tkWWW | Custom | Tcl | Open-source | Discontinued | |
| Uzbl | WebKit | GTK+ | Open-source | Discontinued | Follows the Unix philosophy |
| GNOME Web | WebKit | GTK | Open-source | Formerly called Epiphany; Versions prior to 2.27.0 were built upon Gecko | |
| Waterfox | Gecko | XUL | Open-source | Firefox fork | |
| xombrero | WebKit | GTK+ | Open-source | Discontinued | Renamed from xxxterm; originated from OpenBSD community |
| Web browser | Layout engine | UI toolkit | Source model | Status | Notes |
https://www.mozilla.org/en-US/firefox/android/