Best Fuzzilli Alternatives in 2026
Updated
20 apps from fuzz testing software ranked against Fuzzilli on the same published basis.
- 1Fuzzilli vs AFL++
- 2Fuzzilli vs Mayhem
- 3Fuzzilli vs OSS-Fuzz
- 4Fuzzilli vs ClusterFuzz
- 5Fuzzilli vs Honggfuzz
- 6Fuzzilli vs Jazzer
- 8Fuzzilli vs Schemathesis
- 9Fuzzilli vs FuzzForge
- 10Fuzzilli vs EvoMaster
- 11Fuzzilli vs cargo-fuzz
- 12Fuzzilli vs EvoMaster
- 13Fuzzilli vs syzkaller
- 14Fuzzilli vs Metalware
- 15Fuzzilli vs Csmith
- 16Fuzzilli vs boofuzz
- 17Fuzzilli vs Fuzzware
- 18Fuzzilli vs Netzob
- 19Fuzzilli vs RESTler
- 20Fuzzilli vs Fuzzinator
- 21Fuzzilli vs Wfuzz
Fuzzilli alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | AFL++ | 9.4 | Free plan | €1666.67/mo | Android, Linux, Mac, self-hosted, Windows |
| 2 | Mayhem | 8.2 | Free plan | $236/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 3 | OSS-Fuzz | 8.1 | Free plan | Free | Web |
| 4 | ClusterFuzz | 8.1 | Free plan | Free | Linux, Mac, self-hosted, Web, Windows |
| 5 | Honggfuzz | 7.7 | No | — | Android, Linux, Mac, Windows |
| 6 | Jazzer | 7.4 | Free plan | Free | Linux, Mac, Windows |
| 8 | Schemathesis | 6.8 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 9 | FuzzForge | 6.6 | No | — | Web |
| 10 | EvoMaster | 6.5 | No | — | Windows, Mac, Linux |
| 11 | cargo-fuzz | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 12 | EvoMaster | 6.4 | No | — | Windows, Mac, Linux |
| 13 | syzkaller | 6.3 | No | — | Linux, Mac, Windows |
| 14 | Metalware | 6.2 | No | — | Web |
| 15 | Csmith | 6.2 | Free plan | Free | Linux, Windows |
| 16 | boofuzz | 5.8 | Free plan | Free | API, Linux, self-hosted, Windows |
| 17 | Fuzzware | 5.7 | No | — | Linux |
| 18 | Netzob | 5.5 | No | — | Linux, Windows |
| 19 | RESTler | 5.4 | No | — | Linux, Mac, Windows |
| 20 | Fuzzinator | 5.1 | No | — | Linux, Mac |
| 21 | Wfuzz | 5.0 | No | — | Windows, Mac |
Make your app an alternative to Fuzzilli
See the priceThe sponsored alternative slot on this page is labelled and never changes the order above.
Questions about Fuzzilli alternatives
What is the best alternative to Fuzzilli?
AFL++, number 1 in fuzz testing software with a score of 9.4 out of 10. The others here: Mayhem, OSS-Fuzz, ClusterFuzz and 16 more.
What is the best free alternative to Fuzzilli?
AFL++ is the best-ranked alternative with a free plan. 9 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.