RIOT
RIOT is a free desktop image-optimization tool for compressing and resizing images.
What RIOT is
RIOT is a free desktop image-optimization tool for compressing and resizing images. It supports JPEG, PNG, WebP, GIF, TIFF, HEIC, and AVIF, with both compression modes available. Batch processing lets users work on groups of images, and a live preview compares the original image with the optimized version. Metadata controls are also included. RIOT is listed for Windows, macOS, and Linux, so it covers three desktop platforms. Its Free plan is free and includes desktop image optimization, batch processing, and the live original-versus-optimized preview. API access is not available. The maker is RIOT, founded in 2003.
Good
- Supports seven listed image formats
- Offers both compression modes
- Batch processing is included
- Includes metadata controls and resizing
Watch out
- API access is not available
Who it suits
RIOT suits desktop users who need to resize or optimize images in batches and compare the result with the original. Its listed platform support includes Windows, macOS, and Linux.
Verdict
RIOT provides desktop optimization, resizing, batch processing, and comparison preview at no listed cost. It may suit image workflows that do not require API access.
Plans and prices
From RIOT's own pricing page, checked 20 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Desktop image optimization · Batch processing · Live original-versus-optimized preview |
The facts
Each one read from RIOT's own pages, with the date it was checked.
What it does
- API access
- Nochecked 20 Sep 2026
- Batch processing
- Yeschecked 20 Sep 2026
- Compression modes
- bothchecked 20 Sep 2026
- Image resizing
- Yeschecked 20 Sep 2026
- Metadata controls
- Yeschecked 20 Sep 2026
- Supported formats
- JPEG,PNG,WebP,GIF,TIFF,HEIC,AVIFchecked 20 Sep 2026
The company
- Founded
- 2003checked 28 Sep 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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