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Best Firefox Developer Tools Alternatives in 2026

Updated

20 apps from web browsers ranked against Firefox Developer Tools on the same published basis.

  1. 1
    Mozilla Firefox Free plan Open sourceAndroidextensioniOSLinuxMac Free9.7
    Firefox Developer Tools vs Mozilla Firefox
  2. 2
    Brave Browser Free plan Open sourceAndroidiOSLinuxMacWin $2.50/mo9.7
    Firefox Developer Tools vs Brave Browser
  3. 3
    Waterfox Free plan Open sourceAndroidextensionLinuxMacWin $5/mo9.5
    Firefox Developer Tools vs Waterfox
  4. 4
    Tor Browser Free plan Open sourceAndroidLinuxMacWin Free9.4
    Firefox Developer Tools vs Tor Browser
  5. 5
    Mullvad Browser Free plan Open sourceLinuxMacWin Free9.3
    Firefox Developer Tools vs Mullvad Browser
  6. 6
    LibreWolf Free plan Open sourceLinuxMacWin Free9.3
    Firefox Developer Tools vs LibreWolf
  7. 7
    Midori Browser Free plan Open sourceAndroidextensioniOSLinuxMac Free9.3
    Firefox Developer Tools vs Midori Browser
  8. 8
    Aloha Browser Free plan Open sourceWinMacLinuxiOSAndroid Free9.1
    Firefox Developer Tools vs Aloha Browser
  9. 9
    Helium Browser Free plan Open sourceLinuxMacself-hostedWin Free9.0
    Firefox Developer Tools vs Helium Browser
  10. 10
    IronFox Free plan Open sourceAndroid Free8.9
    Firefox Developer Tools vs IronFox
  11. 11
    BrowserOS Free plan Open sourceextensionLinuxMacWin Free8.8
    Firefox Developer Tools vs BrowserOS
  12. 12
    ungoogled-chromium Free plan Open sourceWinMacLinuxAndroid Free8.7
    Firefox Developer Tools vs ungoogled-chromium
  13. 13
    Blanc Browser Free plan Open sourceMacWinLinux $4/mo8.6
    Firefox Developer Tools vs Blanc Browser
  14. 14
    Pale Moon Free plan Open sourceLinuxMacWin Free8.5
    Firefox Developer Tools vs Pale Moon
  15. 15
    Google Chrome Free plan AndroidextensioniOSLinuxMac Free8.4
    Firefox Developer Tools vs Google Chrome
  16. 16
    Microsoft Edge Free plan AndroidextensioniOSLinuxMac Free8.4
    Firefox Developer Tools vs Microsoft Edge
  17. 17
    Bare Browser Free plan Open sourceAndroid Free8.4
    Firefox Developer Tools vs Bare Browser
  18. 18
    MyIE Browser Free plan Open sourceWinLinuxiOSAndroid Free8.4
    Firefox Developer Tools vs MyIE Browser
  19. 19
    Opera Free plan AndroidextensioniOSLinuxMac $0.33/mo8.3
    Firefox Developer Tools vs Opera
  20. 20
    SPS Browser Pro Free plan Open sourceWin Free8.3
    Firefox Developer Tools vs SPS Browser Pro

Firefox Developer Tools alternatives compared

#AppScoreFree planFromRuns on
1Mozilla Firefox9.7Free planFreeAndroid, Browser, iOS, Linux, Mac, Web, Windows
2Brave Browser9.7Free plan$2.50/moAndroid, iOS, Linux, Mac, Windows
3Waterfox9.5Free plan$5/moAndroid, Browser, Linux, Mac, Windows
4Tor Browser9.4Free planFreeAndroid, Linux, Mac, Windows
5Mullvad Browser9.3Free planFreeLinux, Mac, Windows
6LibreWolf9.3Free planFreeLinux, Mac, Windows
7Midori Browser9.3Free planFreeAndroid, Browser, iOS, Linux, Mac, Windows
8Aloha Browser9.1Free planFreeWindows, Mac, Linux, iOS, Android
9Helium Browser9.0Free planFreeLinux, Mac, self-hosted, Windows
10IronFox8.9Free planFreeAndroid
11BrowserOS8.8Free planFreeBrowser, Linux, Mac, Windows
12ungoogled-chromium8.7Free planFreeWindows, Mac, Linux, Android
13Blanc Browser8.6Free plan$4/moMac, Windows, Linux
14Pale Moon8.5Free planFreeLinux, Mac, Windows
15Google Chrome8.4Free planFreeAndroid, Browser, iOS, Linux, Mac, Web, Windows
16Microsoft Edge8.4Free planFreeAndroid, Browser, iOS, Linux, Mac, Web, Windows
17Bare Browser8.4Free planFreeAndroid
18MyIE Browser8.4Free planFreeWindows, Linux, iOS, Android
19Opera8.3Free plan$0.33/moAndroid, Browser, iOS, Linux, Mac, Web, Windows
20SPS Browser Pro8.3Free planFreeWindows
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Questions about Firefox Developer Tools alternatives

What is the best alternative to Firefox Developer Tools?

Mozilla Firefox, number 1 in web browsers with a score of 9.7 out of 10. The others here: Brave Browser, Waterfox, Tor Browser and 16 more.

What is the best free alternative to Firefox Developer Tools?

Mozilla Firefox 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 Firefox Developer Tools?

Yes: Mozilla Firefox, Brave Browser, Waterfox and 14 more.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.