OpenImage Viewer — Loveleen Cherub

OpenImage Viewer is an advanced image viewer extension for Firefox and Chromium-based browsers that enhances the default image viewing experience.

When you open an image in a browser tab, OpenImage Viewer automatically loads it into a dedicated viewer with powerful tools for navigation, inspection, editing, and productivity.

Features

• Automatic image-tab detection
• Zoom in, zoom out, and reset zoom
• Fullscreen viewing
• Rotate and flip images
• Image cropping tools
• Built-in photo editor
• Draw and annotate images
• Watermarks, filters, and adjustments
• Export as PNG, JPEG, JPG, or WEBP
• Download images
• Color picker
• Image details and metadata viewer
• Reverse image search
• QR code scanner
• Extract text from images (OCR)
• Edit images with Photopea
• Customizable toolbar and settings
• Keyboard shortcuts for faster navigation

Modern Browser Compatibility

OpenImage Viewer includes additional compatibility improvements for modern browser extension platforms, including Manifest V3 support and enhanced image-tab detection.

The extension uses a hybrid detection system combining URL analysis, navigation listeners, and image-type detection to automatically recognize supported image tabs and open them in the viewer.

Open Source

OpenImage Viewer is a community-maintained open-source project inspired by the original BetterViewer project.

Source code, issue tracking, and development information are available on GitHub.