FormValidation Developer License

Official website: https://formvalidation.io/

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.

With the Developer License:

• You get the latest version of FormValidation

• Free lifetime upgrade

• Free to use in multiple websites
  

You can see more information on the official website: https://formvalidation.io/