10 Best Free Modal Libraries For Vanilla JavaScript And CSS

A modal window, often referred to simply as a modal, is a user interface that demands interaction from the user before they can return to the system. Unlike regular popup boxes, a modal disables the main window but keeps it visible, with the modal window appearing in front as a child window requiring user action.

While it’s possible to create custom modals from scratch, many developers prefer using pre-built libraries to save time and ensure consistency. In this blog post, I’ll share 10 of the best open-source modal libraries in JavaScript and CSS.

The modal libraries in this list are ranked based on their number of visits over the past year. This ranking reflects the preferences and popularity among the developer community rather than my personal opinions. While I’ve carefully curated this selection, the order is determined by the collective interest and adoption rates of these libraries.

Note that this ranking reflects what most developers are using, but it shouldn’t be the sole factor in your decision. Consider the specific features and complexity of each library to find the best fit for your project’s needs.

1. Simple Modal Window With Background Blur Effect

A simple, lightweight vanilla JavaScript library that lets you create a modal window while blurring the background content to focus your user’s attention on modal content.

Simple Modal Window With Background Blur Effect

[Demo] [Download]


2. Minimal Overlay Modal In Pure CSS

A Pure CSS overlay modal solution without any JS and checkbox & label tricks. Click on the blank area of background overlay to close the modal.

minimal-overlay-modal-pure-css

[Demo] [Download]


3. All-in-One Modal Lightbox Solution For Web Developers – DimBox.js

Just another Pure CSS overlay modal solution without any JS and checkbox & label tricks. Click on the blank area of the background overlay to close the modal.

modal-lightbox-dimbox

[Demo] [Download]


4. Simple Responsive CSS-Only Modal Dialog

A simple, responsive modal dialog built using CSS and html checkbox.

simple-responsive-css-modal-dialog

[Demo] [Download]


5. Accessible Modal Dialog With CSS3 Animations

An accessible and CSS3 animated modal component built with JavaScript and native HTML dialog element.

Accessible Modal Dialog With CSS3 Animations

[Demo] [Download]


6. Lightweight Customizable Modal and Alert Library – SilverBox.js

A tiny JavaScript library for creating highly customizable popups, notifications, prompts, confirm dialogs and modal windows without sacrificing performance or quality.

modal-alert-silverbox

[Demo] [Download]


7. Modern Modal Window With Smooth Zoom Animations

A simple, animated, responsive modal window with smooth zoom animations using CSS3 transitions and transforms.

Modern Modal Window With Smooth Zoom Animations

[Demo] [Download]


8. Pure CSS Responsive Modal Popup Library – modal.css

A lightweight library for creating responsive modal windows with fade-in animations using checkboxes, CSS flexbox, and CSS3 transitions.

css-responsive-modal

[Demo] [Download]


9. Mobile-friendly Modal Window – Easy Popup

A tiny, easy-to-use, mobile-friendly modal popup library written in JavaScript and CSS/CSS3.

mobile-easy-modal-popup

[Demo] [Download]


10. Accessible Fullscreen Modal Popup with Pure CSS/CSS3

A responsive, fullscreen, fully accessible modal popup built with HTML/CSS/CSS3. All CSS. No JavaScript required.

accessible-fullscreen-modal-popup-with-pure-css-css3

[Demo] [Download]


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