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CyberViewer is a fast, lightweight image and video viewer for Windows with a modern neon interface. It opens images through a custom streaming protocol, browses folders with thumbnails, plays local videos and YouTube videos or playlists in dedicated tabs, and includes practical editing tools for everyday work.
New here? Start with How do you use CyberViewer? for simple everyday examples.
CyberViewer is free and open source under the GPLv3 license. The interface is available in English and Spanish.
| Area | What CyberViewer provides |
|---|---|
| Viewing | Fast image loading, tabbed browsing with optional session restore, folder browsing, thumbnails, zoom, pan, fullscreen, animated GIF playback, and AVIF support |
| Video & YouTube | Local video playback in media tabs (MP4, M4V, WebM, MOV, and MKV) and isolated YouTube video or playlist playback |
| Editing | Rotate, crop, resize, flip, brightness, contrast, saturation, blur, grayscale, and invert |
| Presentations | Slideshow controls, 2s / 3s / 5s / 10s intervals, loop mode, and optional fullscreen start |
| File workflow | Save, Save As, clipboard copy, file paths, Recycle Bin, PDF export, printing, favorites, recent history, and wallpaper styles |
| Desktop integration | System tray, recent images in the tray, auto-start, configurable global hotkey, Explorer context menu, file associations, and scheduled automatic backups |
| Customization | Accent colors, transparency backgrounds, interface visibility, fullscreen behavior, and settings backup |
Supported image formats are JPG, JPEG, PNG, GIF, WebP, BMP, TIFF, TIF, ICO, and AVIF. Videos open through MP4, M4V, WebM, MOV, and MKV files, with support depending on the codecs inside each file.
- Download the latest installer or portable build from GitHub Releases.
- Install CyberViewer, or run the portable build directly.
- Open an image or folder using the File menu, drag and drop, or
Ctrl+Vto paste an image. - Navigate with the arrow keys,
A/D, the sidebar thumbnails, or the slideshow. - Open Settings to configure the interface, slideshow, system integration, and backup options.
- How Do You Use CyberViewer? — Simple everyday examples for new users
- Viewing : Open images and folders, navigate, zoom, pan, use fullscreen, work with tabs and session restore, and play videos or YouTube content.
- Editing : Rotate, crop, resize, adjust, and flip images.
- Slideshow : Start presentations, configure timing, use loop mode, and control fullscreen behavior.
- File Operations : Save, copy, delete, export, print, manage favorites, and set the desktop wallpaper.
- Settings : Configure appearance, interface behavior, slideshow options, system integration, and backup data.
- Keyboard Shortcuts : Complete keyboard and navigation reference.
- Installation & Setup : Install, build, configure auto-start, and integrate with Windows.
- FAQ : Frequently asked questions and troubleshooting.
- Changelog : Release history and version notes.
Start with the FAQ, or check the latest release notes for changes and known limitations. For source code, issues, and contributions, visit the CyberViewer repository.
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