FormValidation is the best validation library for JavaScript. * Rewritten everything from scratch in Typescript and ES6 * No dependency. No jQuery. Hooray! * Compatible with JavaScript module. It means that you can use import and integrate with other JavaScript frameworks * Built on plugin architecture. The core library is very lightweight. Everything else is plugin. * Richest validators in the class * All validators can be used independently. So you can use it in browser, with JavaScript module and server side frameworks. Write the validator once and reuse it everywhere. * Well tested with +400 Mocha unit tests, hundreds of end-to-end test cases against Selenium server. * Designed to work with native form without using any specific CSS frameworks * Built in plugins to support popular CSS frameworks, including - Bootstrap v3, v4, v5 - Bulma - Foundation - Materialize - Milligram - mini.css - PureCSS - Semantic UI - Shoelace - Spectre - Tachyons - turretcss - Uikit and more landing soon.