Updated September 2026

Best open-source browsers in 2026

Open source means anyone can read the code, audit what the browser sends home, and fork it if the project goes wrong — which is how half the browsers on this site came to exist. Only fully open-source browsers qualify; partially open ones like Vivaldi are left out.

1. 1

   Brave

   100%

   Private by default, Chrome-compatible.

   Blink open source WindowsmacOSLinuxAndroidiOS
   Site compatibility 3/3Low maintenance 3/3Tracking protection 3/3Extension ecosystem 3/3

   Worth knowing: Crypto/BAT rewards and sponsored extras (all disableable)

2. 2

   Firefox

   95%

   The independent original.

   Gecko open source WindowsmacOSLinuxAndroidiOS
   Site compatibility 3/3Low maintenance 3/3Tracking protection 2/3Extension ecosystem 3/3

   Worth knowing: Mozilla's ad-tech experiments irritate purists

3. =3

   Floorp

   87%

   Firefox with every switch exposed.

   Gecko open source WindowsmacOSLinux
   Site compatibility 3/3Low maintenance 2/3Tracking protection 2/3Extension ecosystem 3/3

   Worth knowing: So many options it can overwhelm

4. =3

   Waterfox

   87%

   Privacy-tuned Firefox with a gentler touch.

   Gecko open source WindowsmacOSLinuxAndroid
   Site compatibility 3/3Low maintenance 2/3Tracking protection 2/3Extension ecosystem 3/3

   Worth knowing: Small team — updates can trail Firefox slightly

5. =3

   Zen Browser

   87%

   Calm, beautiful Firefox.

   Gecko open source WindowsmacOSLinux
   Site compatibility 3/3Low maintenance 2/3Tracking protection 2/3Extension ecosystem 3/3

   Worth knowing: Young, fast-moving project — occasional rough edges

6. 6

   Iceraven

   79%

   Firefox for Android, unleashed.

   Gecko open source Android
   Site compatibility 3/3Low maintenance 1/3Tracking protection 2/3Extension ecosystem 3/3

   Worth knowing: Sideload/Obtainium updates

7. =7

   Chromium

   73%

   Chrome without the Google gloss.

   Blink open source WindowsmacOSLinux
   Site compatibility 3/3Low maintenance 1/3Tracking protection 1/3Extension ecosystem 3/3

   Worth knowing: No built-in auto-update on most platforms

8. =7

   Thorium

   73%

   Chromium compiled for speed.

   Blink open source WindowsmacOSLinuxAndroid
   Site compatibility 3/3Low maintenance 1/3Tracking protection 1/3Extension ecosystem 3/3

   Worth knowing: Essentially a one-maintainer project

9. 9

   Ungoogled Chromium

   71%

   Chromium, surgically de-Googled.

   Blink open source WindowsmacOSLinux
   Site compatibility 3/3Low maintenance 0/3Tracking protection 3/3Extension ecosystem 2/3

   Worth knowing: Manual updates on most platforms

10. 10

    DuckDuckGo Browser

    69%

    Privacy for people who don't want settings.

    System WebView open source WindowsmacOSAndroidiOS
    Site compatibility 2/3Low maintenance 3/3Tracking protection 3/3Extension ecosystem 0/3

    Worth knowing: Little to no extension support