OpenPubkey vs Signo
| OpenPubkey | Signo | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | api, Linux, macOS, self-hosted, Windows | api, Linux, self-hosted |
| Free plan | Yes | — |
| Supported targets | messages and artifacts | Files; Windows executables via Authenticode |
| Certificate provided | No | — |
| HSM key protection | — | Yes |
| CI/CD signing | — | Yes |
Both are listed in Best Code Signing Software. On The Geeks Club, OpenPubkey scores higher on our published basis.