doiuse

It's probably easier to find tools by searching GitHub instead of SO. It looks like doiuse also comes as a PostCSS plugin so you could have better compile time linter integration with that[0]. There's also a similar plugin for ESLint called eslint-plugin-compat which checks for JS cross browser compatibility[1]. You can also set up automation via WebDriver for cross-browser functional and visual testing if you really want to be sure everything works well. WebDriverIO is good for that[2]. Unless you're going to sink over 1000 hours into the project it's probably not worth it though. It's notoriously tricky to set up correctly if you haven't done it before. [0] https://github.com/anandthakker/doiuse [1] https://github.com/amilajack/eslint-plugin-compat [2] https://webdriver.io/

Doiuse is a great PostCSS plugin that check if your css is compatible with the browsers you aim to support using caniuse. https://github.com/anandthakker/doiuse