Best CPAchecker Alternatives in 2026
Updated
20 apps from formal verification tools ranked against CPAchecker on the same published basis.
- 1CPAchecker vs Z3
- 2CPAchecker vs Rocq
- 3CPAchecker vs Isabelle
- 4CPAchecker vs PVS
- 5CPAchecker vs ACL2
- 6CPAchecker vs Frama-C
- 7CPAchecker vs CBMC
- 8CPAchecker vs SPIN
- 9CPAchecker vs Lean
- 10CPAchecker vs Why3
- 11CPAchecker vs UPPAAL
- 12CPAchecker vs TLA+
- 13CPAchecker vs Alloy Analyzer
- 14CPAchecker vs K Framework
- 15CPAchecker vs Dafny
- 16CPAchecker vs cvc5
- 18CPAchecker vs F*
- 19CPAchecker vs PRISM
- 20CPAchecker vs NuSMV
- 21CPAchecker vs Stainless
CPAchecker alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Z3 | 8.9 | Free plan | Free | Android, API, Linux, Mac, self-hosted, Web, Windows |
| 2 | Rocq | 8.2 | Free plan | Free | Browser, Linux, Mac, Web, Windows |
| 3 | Isabelle | 8.1 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 4 | PVS | 8.1 | Free plan | Free | Linux, Mac, Windows |
| 5 | ACL2 | 7.4 | No | — | Linux, Mac, self-hosted, Windows |
| 6 | Frama-C | 7.2 | No | — | Linux, Mac, Windows |
| 7 | CBMC | 7.1 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 8 | SPIN | 7.0 | Free plan | Free | Linux, Mac, Windows |
| 9 | Lean | 6.9 | No | — | Web, Windows, Mac, Linux |
| 10 | Why3 | 6.8 | No | — | Web, Linux, Windows |
| 11 | UPPAAL | 6.8 | Free plan | Free | Linux, Mac, Windows |
| 12 | TLA+ | 6.7 | No | — | Windows, Mac, Linux |
| 13 | Alloy Analyzer | 6.7 | Free plan | Free | API, Linux, Mac, Windows |
| 14 | K Framework | 6.6 | No | — | Linux, Mac |
| 15 | Dafny | 6.5 | No | — | Windows, Mac, Linux |
| 16 | cvc5 | 6.3 | No | — | Web, Windows, Mac, Linux |
| 18 | F* | 6.2 | No | — | Windows, Linux, Mac |
| 19 | PRISM | 6.0 | No | — | Windows, Mac, Linux |
| 20 | NuSMV | 5.9 | No | — | Windows, Mac, Linux |
| 21 | Stainless | 5.7 | No | — | Windows, Mac, Linux |
Make your app an alternative to CPAchecker
See the priceThe sponsored alternative slot on this page is labelled and never changes the order above.
Questions about CPAchecker alternatives
What is the best alternative to CPAchecker?
Z3, number 1 in formal verification tools with a score of 8.9 out of 10. The others here: Rocq, Isabelle, PVS and 16 more.
What is the best free alternative to CPAchecker?
Z3 is the best-ranked alternative with a free plan. 8 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.