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Best SigmaOS Alternatives in 2026

Updated

20 platforms from web browsers ranked against SigmaOS on the same published basis.

  1. 1
    Brave Browser Free plan Open sourceAndroidiOSLinuxMacWin $2.50/mo9.6
    SigmaOS vs Brave Browser
  2. 2
    Opera Free plan AndroidextensioniOSLinuxMac $0.33/mo9.6
    SigmaOS vs Opera
  3. 3
    Waterfox Free plan Open sourceAndroidextensionLinuxMacWin $5/mo9.3
    SigmaOS vs Waterfox
  4. 4
    Google Chrome Free plan AndroidextensioniOSLinuxMac Free8.9
    SigmaOS vs Google Chrome
  5. 5
    Microsoft Edge Free plan AndroidextensioniOSLinuxMac Free8.9
    SigmaOS vs Microsoft Edge
  6. 6
    Mozilla Firefox Free plan Open sourceAndroidextensioniOSLinuxMac Free8.8
    SigmaOS vs Mozilla Firefox
  7. 7
    DuckDuckGo Browser Free plan AndroidiOSMacWin $8.33/mo8.8
    SigmaOS vs DuckDuckGo Browser
  8. 8
    Dia Free plan Mac $20/mo8.8
    SigmaOS vs Dia
  9. 9
    JioSphere Free plan AndroidiOSLinuxMacWeb Free8.7
    SigmaOS vs JioSphere
  10. 10
    Maxthon Free plan AndroidextensioniOSMacWeb Free8.7
    SigmaOS vs Maxthon
  11. 11
    Vivaldi Free plan AndroidextensioniOSLinuxMac Free8.6
    SigmaOS vs Vivaldi
  12. 12
    Comet Free plan AndroidiOSMacWin Free8.6
    SigmaOS vs Comet
  13. 13
    360 Secure Browser Free trial AndroidiOSLinuxMacWin CNY 4.83/mo8.6
    SigmaOS vs 360 Secure Browser
  14. 14
    Nstbrowser Free plan apiLinuxMacself-hostedWeb $29.90/mo8.6
    SigmaOS vs Nstbrowser
  15. 15
    Safari Free plan extensioniOSMac Free8.5
    SigmaOS vs Safari
  16. 16
    Avast Secure Browser Free plan extensionWeb $3.33/mo8.5
    SigmaOS vs Avast Secure Browser
  17. 17
    Kameleo Free plan AndroidapiextensioniOSLinux €3.75/mo8.5
    SigmaOS vs Kameleo
  18. 18
    Tor Browser Free plan Open sourceAndroidLinuxMacWin Free8.4
    SigmaOS vs Tor Browser
  19. 19
    Mullvad Browser Free plan Open sourceLinuxMacWin Free8.4
    SigmaOS vs Mullvad Browser
  20. 20
    Epic Privacy Browser Free plan WinMacAndroid Free8.4
    SigmaOS vs Epic Privacy Browser

SigmaOS alternatives compared

#PlatformScoreFree planFromRuns on
1Brave Browser9.6Free plan$2.50/moAndroid, iOS, Linux, Mac, Windows
2Opera9.6Free plan$0.33/moAndroid, Browser, iOS, Linux, Mac, Web, Windows
3Waterfox9.3Free plan$5/moAndroid, Browser, Linux, Mac, Windows
4Google Chrome8.9Free planFreeAndroid, Browser, iOS, Linux, Mac, Web, Windows
5Microsoft Edge8.9Free planFreeAndroid, Browser, iOS, Linux, Mac, Web, Windows
6Mozilla Firefox8.8Free planFreeAndroid, Browser, iOS, Linux, Mac, Web, Windows
7DuckDuckGo Browser8.8Free plan$8.33/moAndroid, iOS, Mac, Windows
8Dia8.8Free plan$20/moMac
9JioSphere8.7Free planFreeAndroid, iOS, Linux, Mac, Web, Windows
10Maxthon8.7Free planFreeAndroid, Browser, iOS, Mac, Web, Windows
11Vivaldi8.6Free planFreeAndroid, Browser, iOS, Linux, Mac, Windows
12Comet8.6Free planFreeAndroid, iOS, Mac, Windows
13360 Secure Browser8.6NoCNY 4.83/moAndroid, iOS, Linux, Mac, Windows
14Nstbrowser8.6Free plan$29.90/moAPI, Linux, Mac, self-hosted, Web, Windows
15Safari8.5Free planFreeBrowser, iOS, Mac
16Avast Secure Browser8.5Free plan$3.33/moBrowser, Web
17Kameleo8.5Free plan€3.75/moAndroid, API, Browser, iOS, Linux, Mac, Web, Windows
18Tor Browser8.4Free planFreeAndroid, Linux, Mac, Windows
19Mullvad Browser8.4Free planFreeLinux, Mac, Windows
20Epic Privacy Browser8.4Free planFreeWindows, Mac, Android
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Questions about SigmaOS alternatives

What is the best alternative to SigmaOS?

Brave Browser, number 1 in web browsers with a score of 9.6 out of 10. The others here: Opera, Waterfox, Google Chrome and 16 more.

What is the best free alternative to SigmaOS?

Brave Browser is the best-ranked alternative with a free plan. 19 of the 20 alternatives here publish a free plan on their own pricing pages.

Is there an open-source alternative to SigmaOS?

Yes: Brave Browser, Waterfox, Mozilla Firefox and 2 more.

How are these alternatives ranked?

Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.