Head-to-head · Photo Viewer Software
FastStone Image Viewer vs Loupe
FastStone Image Viewer leads on 0 checks, Loupe on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreFastStone Image Viewer · 9.1/10
- Free planboth
- Most featuresFastStone Image Viewer · 5 of 5
FastStone Image Viewer scores higher on our rubric for photo viewer software: 9.1 against 8.2 out of 10; our editors rank them #2 and #8.
FastStone Image Viewer is the better fit for windows users wanting a free all-round viewer. Loupe is the better fit for linux users wanting a simple modern viewer.
- FastStone Image Viewer fits best
Windows users wanting a free all-round viewer
- Loupe fits best
Linux users wanting a simple modern viewer
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Side by side
| Feature | FastStone Image Viewer 9.1/10 Visit ↗ | Loupe 8.2/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.1 | 8.2 |
| Ranking | #2 in Photo Viewer Software | #8 in Photo Viewer Software |
| Best for | Windows users wanting a free all-round viewer | Linux users wanting a simple modern viewer |
| Pricing model | Free plan + paid | Free |
| Starting price | — | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Desktop | Desktop |
| Platforms | Windows | Linux |
| Support | Email, Docs | Docs, Community |
| Built for | Solo, Small business, Enterprise | Solo, Small business |
| Features FastStone Image Viewer 5/5 · Loupe 2/5 | ||
| RAW image support | ✓ (best) | Not checked yet |
| Side-by-side compare | ✓ (best) | Not checked yet |
| Contact sheets | ✓ (best) | Not checked yet |
| Color management | ✓ | ✓ |
| Metadata viewer | ✓ | ✓ |
| Specs | ||
| Supported platforms | Windows | linux |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | FastStone Image Viewer is a Windows desktop application for browsing, viewing, organizing, comparing, editing, converting, and presenting digital images. It suits Windows users who want more than a basic viewer, particularly photographers… Read the review → |
Loupe, also presented as GNOME Image Viewer, is a desktop application for opening, browsing, and viewing images on Linux. It suits users who want a simple viewer that can open files from a chooser, file manager, or drag-and-drop action,… Read the review → |
Strengths and trade-offs
FastStone Image Viewer — where it wins
- Supports camera RAW formats and EXIF metadata viewing
- Compares up to four images and creates configurable contact sheets
- Adds batch conversion, renaming, scanning, editing, slideshows, and portability
Where it doesn't
- Commercial use requires a paid lifetime license
- Available for Windows rather than multiple desktop platforms
- Its broad toolset may be more than casual viewers need
Loupe — where it wins
- Free and open-source with file chooser, file manager, and drag-and-drop workflows
- Shows image properties and embedded EXIF metadata
- Includes crop, rotate, flip, zoom, trash, copy, and send actions
Where it doesn't
- Available on Linux rather than across multiple desktop platforms
- Basic editing tools do not replace a full image editor
- Format support can vary by system, with RAW support not established as standard
- FastStone Image Viewer9.1/10 · Free plan
A free Windows viewer with RAW support, comparison, batch tools, editing, and scanning.
Visit FastStoneFull verdict → - Loupe8.2/10 · Free plan
A free, open-source Linux viewer for straightforward browsing, metadata, and basic image edits.
Visit LoupeFull verdict →
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All photo viewer software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update






