Updated at: May 6, 2026
These web browsers provide support for really old-school or retro operating systems. Most web browsers only maintain support for newer operating systems, and over time they stop supporting the older platforms and operating systems, but the browsers in this list continue to support much older operating systems like Windows XP, OS X, Amiga, and so on. If you're using an old operating system, maybe you'll find a browser here that works well for you.
| Browser Name | Rendering Engine | Timeline | Device Type | Operating Systems | Status |
|---|---|---|---|---|---|
| Abaco | Custom | 2006 - ? | Desktop | Linux, Plan 9 | Discontinued |
| Arctic Fox | Gecko | 2018 → | Desktop | BSD, Linux, macOS, Windows | Active |
| Classilla | Custom | 2009 - 2021 | Desktop | Mac OS Classic | Discontinued |
| Dactyloidae | Goanna | ? - 2026 | Desktop | Linux, macOS, Windows | Idle |
| Hydra | Goanna | 2018 → | Desktop | Windows | Active |
| IBrowse | Custom | 1996 - 2023 | Desktop | Amiga OS | Idle |
| InterWebSnow | Gecko | 2021 - 2022 | Desktop | OS X | Abandoned |
| Lun3r | Goanna | 2018 → | Desktop | Windows | Active |
| Mypal | Gecko | 2022 → | Desktop | Windows | Active |
| Nexus Browser | Trident | 2020 | Desktop | Windows | Discontinued |
| Nocturne | Gecko | 2015 → | Desktop | Windows | Active |
| PowerFox | Gecko | 2026 → | Desktop | OS X | |
| r3dfox | Gecko | 2024 → | Desktop | Windows | Active |
| Supermium | Chromium | 2023 → | Desktop | Windows | Active |
| TenFourFox | Gecko | 2010 - 2020 | Desktop | OS X | Discontinued |
| Timberwolf | Gecko | 2010 - 2012 | Desktop | Amiga OS | Discontinued |
| Voyager (Amiga) | Custom | 1999 - 2002 | Desktop | Amiga OS |