Viewer.js is a JavaScript image viewer that provides modal and inline viewing modes with touch support, zoom, rotation, and keyboard controls.
The tool solves the problem of displaying images interactively in web applications. It works by accepting an HTML element containing one or more images and wrapping them with a viewer interface that supports both modal (full-screen overlay) and inline (embedded) display modes. Users can navigate between images, zoom in and out, rotate and flip images, and control playback through keyboard shortcuts or UI buttons. The viewer exposes its functionality through options for customization, methods for programmatic control, and events for integration with application logic.
Developers should choose this tool when building web applications that need rich image viewing capabilities without building from scratch. It suits projects ranging from simple image galleries to complex image management interfaces. The tool provides a jQuery plugin wrapper for teams already using jQuery, though the core library works independently. Cross-browser support and touch gesture handling make it suitable for both desktop and mobile applications.
The project shows consistent maintenance with regular updates addressing bug fixes and feature refinements. Development activity demonstrates responsiveness to user issues and pull requests, with a focus on stability and backward compatibility. The maintainer actively manages the project roadmap and incorporates community feedback into releases.