Fast User-friendly Form Validation Plugin – Validator.js
A fast, cross-browser, user-friendly, highly customizable form validator that works with the native HTML5 input types: text, email, url, date, etc.
JavaScript & CSS form validation
Easy Fast Form Validation Library – Wellidate
Wellidate is a fast, easy-to-use JavaScript form validation library that supports both native HTML5 validation attribute and HTML data attribute.
Custom HTML5 Form Validator In Vanilla JavaScript – Just-validate
Just-validate is a dependency-free, HTML5 data attribute based form validation that supports both client side and server side form validation.
Minimal HTML5 Form Validator In Vanilla JavaScript – Pristine
Pristine is a lightweight vanilla JavaScript form validation library which works with the native HTML5 attributes and allows you to create your own validators of course.
Elegant Pure JavaScript Form Validator – Vanilla Validator
A vanilla JavaScript form validator to validate your form controls and display error messages next to invalid fields.
Concise Form Validator In Vanilla JavaScript – formvalidatorjs
formvalidatorjs is a lightweight, unobtrusive form validator written in vanilla JavaScript that works with the native HTML5 data validation.
Vanilla JavaScript Form Validator For Bootstrap Framework
A vanilla JavaScript plugin that adds the form validation functionality to your Bootstrap project without any 3rd JS libraries.
Extend HTML5 Form Validation With Custom Rules And Errors – Bouncer.js
The Bouncer.js JavaScript library is created to extend the native HTML5 form validation that enables the customizable form validation on the form fields.
Validate Form Fields Using Regex And Required Attribute – Coriander
Coriander is a dead simple form validator used for validating form fields using Regex and required attribute.
Customizable Form Validator With Native JavaScript – js-form-validator.js
An easy-to-use yet fully customizable form field validator built using native JavaScript with no 3rd JavaScript libraries.