Client-Side Declarative Form Validation using Strictly.js
Add powerful, customizable form validation with Strictly.js. Define rules like required, regex, length, and more directly in your HTML markup.
JavaScript & CSS form validation
Lightweight Form Validation and Input Masking/Formatting – Masker.js
Add client-side input masks and validation with Masker.js. Includes date range comparison, character counters, and international phone number formats.
Fast Clientside Form Validation with Zephyr Form Validator
A lightweight, dependency-free JS library for client-side form validation with custom rules and flexible styling.
Enhance Password Fields with Custom Web Components
Improve your site’s password fields. Implement easy-to-use components for rule checking and visibility toggling.
Validating and Formatting Credit Card Inputs with Payment.js
Payment.js is a standalone Javascript library for E-commerce or business websites that helps you validate and format credit card form elements.
Precise Checkbox Validation With Required Checkboxes Web Component
Take control of your form’s checkbox requirements! This component makes it easy to specify exactly how many boxes users must check.
Beginner-Friendly JavaScript Form Validation Library – Trivule
A beginner-friendly JavaScript library that makes form validation a breeze. Add validation rules with custom HTML attributes, no complex code required.
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.
Lightweight Flexible Form Validation Engine – simpower-validation
A lightweight, flexible, simple-to-use, developer-friendly form validation library written in PURE JavaScript.
Lightweight and Powerful Data Validation Library – Iodine.js
A lightweight JavaScript validation library that makes robust form and data validation easy with chainable rules.