Infection is a mutation testing library for PHP. We help thousands of projects and teams to write more reliable software by improving their test suites.
Documentation: https://infection.github.io/guide/
Playground: https://infection-php.dev/
❤️ Sponsorship Goal
The funds collected will be used to pay for the project's infrastructure costs as well as to support the Infection maintainers with funds for swag and travel costs when visiting conferences to support the project.
11 sponsors are funding infection’s work.
Featured work
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infection/infection
PHP Mutation Testing library
PHP 1,656 -
infection/tests-checker
[BOT] Requires writing the tests in Pull Requests.
TypeScript 33
Select a tier
$5 a month
Select$10 a month
SelectThis covers our monthly hosting bill. Thank you!
A permanent mention on our site recognizing your contribution.
$25 a month
SelectYou are experienced Mutation Testing user and know how much it helps.
A featured permanent mention on our site recognizing your contribution.


It means a lot for us, it helps the whole PHP community.
A mention on Twitter recognizing your contribution.