Psalm is a static analysis tool for finding errors in PHP applications.

Join the official Psalm news channel and the Psalm community on Telegram and Discord!

To get started, check out the installation guide.

You can play around with Psalm on its website.

Documentation is available on Psalm’s website, generated from the docs folder.

You can support Psalm development by requesting a support contract from Daniil Gentili, the only active maintainer of Psalm.

Support contracts can cover full integration of Psalm into existing codebases, support for Psalm issues and development of additional Psalm features.

See here » for info, pricing and contact information.

Have a look at CONTRIBUTING.md.

Built by Matt Brown (@muglug).

Maintained by Daniil Gentili (@danog), Alies Lapatsin (@alies-dev) and Orklah (@orklah).

Former maintainer: Bruce Weirdan (@weirdan).

The engineering team at Vimeo have provided a lot encouragement, especially @nbeliard, @erunion and @nickyr.