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Best SigmaOS Alternatives in 2026

Updated

20 tools 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
    Google Chrome Free plan AndroidextensioniOSLinuxMac Free9.3
    SigmaOS vs Google Chrome
  4. 4
    Microsoft Edge Free plan AndroidextensioniOSLinuxMac Free9.3
    SigmaOS vs Microsoft Edge
  5. 5
    Waterfox Free plan Open sourceAndroidextensionLinuxMacWin $5/mo9.2
    SigmaOS vs Waterfox
  6. 6
    Mozilla Firefox Free plan Open sourceAndroidextensioniOSLinuxMac Free9.1
    SigmaOS vs Mozilla Firefox
  7. 7
    Vivaldi Free plan AndroidextensioniOSLinuxMac Free8.9
    SigmaOS vs Vivaldi
  8. 8
    DuckDuckGo Browser Free plan AndroidiOSMacWin $8.33/mo8.9
    SigmaOS vs DuckDuckGo Browser
  9. 9
    JioSphere Free plan AndroidiOSLinuxMacWeb Free8.9
    SigmaOS vs JioSphere
  10. 10
    Kameleo Free plan AndroidapiextensioniOSLinux €3.75/mo8.8
    SigmaOS vs Kameleo
  11. 11
    Comet Free plan AndroidiOSMacWin Free8.7
    SigmaOS vs Comet
  12. 12
    Ecosia Browser Free plan AndroidiOSLinuxMacWin Free8.7
    SigmaOS vs Ecosia Browser
  13. 13
    NAVER Whale Free plan AndroidextensioniOSLinuxMac Free8.6
    SigmaOS vs NAVER Whale
  14. 14
    Tor Browser Free plan Open sourceAndroidLinuxMacWin Free8.5
    SigmaOS vs Tor Browser
  15. 15
    Mullvad Browser Free plan Open sourceLinuxMacWin Free8.5
    SigmaOS vs Mullvad Browser
  16. 16
    Dia Free plan Mac $20/mo8.5
    SigmaOS vs Dia
  17. 17
    Safari Free plan extensioniOSMac Free8.4
    SigmaOS vs Safari
  18. 18
    LibreWolf Free plan Open sourceLinuxMacWin Free8.4
    SigmaOS vs LibreWolf
  19. 19
    Avast Secure Browser Free plan extensionWeb $3.33/mo8.4
    SigmaOS vs Avast Secure Browser
  20. 20
    Aloha Browser Free plan Open sourceWinMacLinuxiOSAndroid Free8.4
    SigmaOS vs Aloha Browser

SigmaOS alternatives compared

#ToolScoreFree 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
3Google Chrome9.3Free planFreeAndroid, Browser, iOS, Linux, Mac, Web, Windows
4Microsoft Edge9.3Free planFreeAndroid, Browser, iOS, Linux, Mac, Web, Windows
5Waterfox9.2Free plan$5/moAndroid, Browser, Linux, Mac, Windows
6Mozilla Firefox9.1Free planFreeAndroid, Browser, iOS, Linux, Mac, Web, Windows
7Vivaldi8.9Free planFreeAndroid, Browser, iOS, Linux, Mac, Windows
8DuckDuckGo Browser8.9Free plan$8.33/moAndroid, iOS, Mac, Windows
9JioSphere8.9Free planFreeAndroid, iOS, Linux, Mac, Web, Windows
10Kameleo8.8Free plan€3.75/moAndroid, API, Browser, iOS, Linux, Mac, Web, Windows
11Comet8.7Free planFreeAndroid, iOS, Mac, Windows
12Ecosia Browser8.7Free planFreeAndroid, iOS, Linux, Mac, Windows
13NAVER Whale8.6Free planFreeAndroid, Browser, iOS, Linux, Mac, Windows
14Tor Browser8.5Free planFreeAndroid, Linux, Mac, Windows
15Mullvad Browser8.5Free planFreeLinux, Mac, Windows
16Dia8.5Free plan$20/moMac
17Safari8.4Free planFreeBrowser, iOS, Mac
18LibreWolf8.4Free planFreeLinux, Mac, Windows
19Avast Secure Browser8.4Free plan$3.33/moBrowser, Web
20Aloha Browser8.4Free planFreeWindows, Mac, Linux, iOS, 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, Google Chrome, Microsoft Edge and 16 more.

What is the best free alternative to SigmaOS?

Brave Browser is the best-ranked alternative with a free plan. 20 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 4 more.

How are these alternatives ranked?

Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.