mountebank : mountebank is the first open source tool to provide cross-platform, multi-protocol test doubles over the wire. Simply point your application under tes...
tota11y : an accessibility visualization toolkit that aims to reduce the friction of a11y testing
PHP_CodeSniffer : PHP_CodeSniffer tokenises PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.
SPOFCheck : A CLI tool for detecting frontend SPOF, mainly blocking scripts and CSS
httpbin : Testing an HTTP Library can become difficult sometimes. PostBin.org is fantastic for testing POST requests, but not much else. This exists to cover al...
Set of tools for testing with older or newer IE browsers
