Improve ImgSLI
Improve-ImgSLI is a free, open-source image comparison tool for designers, photographers, and AI upscaling enthusiasts. It lets you compare two images side-by-side or over-under with a draggable splitter, an advanced magnifier (Nearest Neighbor, Bilinear, Bicubic, Lanczos), and...
Cost / License
- Free
- Open Source (MIT)
Platforms
- Windows
- Linux
- Arch Linux
- Flathub
- Flatpak
Features
Properties
- Privacy focused
- Lightweight
Features
- Ad-free
- Extensible by Plugins/Extensions
- Portable
- No registration required
- No Tracking
- Built-in viewer
- Works Offline
- Dark Mode
- Side-by-Side Comparison
- Before/After photos
- Screen Magnifier
- Drag and Drop
- Side-by-Side View
- Image Comparison
- File Comparison
Improve ImgSLI News & Activities
Recent activities
- Loganavter updated Improve ImgSLI
- Loganavter updated Improve ImgSLI
Improve ImgSLI information
Developed by
Loganavter Licensing
Open Source (MIT) and Free product.Written in
Alternatives
3 alternatives listedSupported Languages
- English
- Russian
- Chinese
- Portuguese
AlternativeTo Categories
File Management, OS & UtilitiesGitHub repository
- 33 Stars
- 4 Forks
- 2 Open Issues
- Updated
What is Improve ImgSLI?
Improve-ImgSLI is a free, open-source image comparison tool for designers, photographers, and AI upscaling enthusiasts. It lets you compare two images side-by-side or over-under with a draggable splitter, an advanced magnifier (Nearest Neighbor, Bilinear, Bicubic, Lanczos), and full canvas zoom & pan — all GPU-accelerated for smooth performance even on large files.
Beyond visual comparison, it includes a built-in image analysis suite with pixel difference maps, SSIM/PSNR metrics, edge detection, and channel analysis. Comparisons can be exported as high-resolution images (PNG, JPG, WEBP) or video (H.265) via the built-in video editor with a keyframe timeline. Images load via drag & drop or clipboard paste (Ctrl+V).
Available on Windows and Linux (Flatpak, AUR, Python source). MIT licensed.