py-spy vs VisualVM
| py-spy | VisualVM | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | Linux, macOS, Windows |
| Profiling modes | sampling | both |
| Supported languages | Python; C; C++; Cython | Java, JavaScript, Python, Ruby, R |
| CPU profiling | Yes | Yes |
| Thread profiling | Yes | Yes |
| Deployment model | desktop | desktop |
| Free plan | — | Yes |
| Memory profiling | — | Yes |
Both are listed in Best Profiling Software. On Samsung Mobile US Press, VisualVM scores higher on our published basis.