I it possible to use husky with sourcetree?
If yes, how can I install it?
If no, are there any alternatives for checking source code before committing?
I need something that assures that all team members use the same client-side hooks.
Sourcetree does not provide any client-side functionality to standardize on for teams. Husky, a custom script which configures a dev environment with hooks and whatnot, and other options are all independent and therefore work with Git itself. You'll need to experiment with your repository to figure out what works best for your workflows.
Principal Developer, Sourcetree