Open-source alternatives to Formvalidation

jQuery form validation is a library that helps you to validate your html form, it's completable with booth bootstrap 3 and bootstrap 4.

An HTML5 form validation plugin for jQuery. Works on all major browsers, both new and old. Implements inline, realtime validation best practices (based on surveys and usability studies). Developed for production use in e-commerce. Currently in production with millions of users.

This project is a jQuery plugin and client-side form validator used to verify web form inputs before they are submitted to a server. It employs a rule-based validation engine to check user input against predefined or custom rules to ensure data integrity in the browser. The tool is designed as an ARIA-compliant validation system, using accessibility attributes to link error messages to input fields. This ensures that screen reader users are notified when a field contains an invalid value during the form submission process. The system supports remote server validation via asynchronous HTTP re

jQuery form validation plugin