F* vs Frama-C

F*

5.9 #21 in Formal Verification Tools

About F*

Frama-C

6.4 #10 in Formal Verification Tools

About Frama-C
F*Frama-C
Free planNoNo
Free trialNoNo
Paid from——
Open sourceNoNo
PlatformsWindows, Linux, macOSLinux, macOS, Windows
Verification methodhybridhybrid
Supported formalismstheorem-provingcontracts
Input languagesF*C, ACSL
Deploymentself-hostedself-hosted
Free plan—Yes
Counterexamples—Yes

Both are listed in Best Formal Verification Tools. On The Geeks Club, Frama-C scores higher on our published basis.