CompressO
CompressO: A free, open-source desktop app for batch image and video compression offline. Ranked #42 of 85 in Image Compression Software by our editors (5.2/10); pricing: Free plan; best for local batch image processing on desktop.
At a glance
- Editor score5.2 / 10
- PricingFree plan
- Best forLocal batch image processing on desktop
- Free planYes
- Paid fromFree
- Facts checked24 Sep 2026
Where it wins
- Batch-process images and videos offline on Windows, macOS, and Linux.
- Control image quality, formats, and dimensions; crop, rotate, or flip.
- Preview results and preserve image metadata while converting formats.
Where it doesn't
- Desktop-only deployment does not offer a cloud workflow.
- Image conversions are limited to JPEG, PNG, WebP, and GIF.
- No paid tiers or API access are described.
Our verdict on CompressO
CompressO is a free, open-source desktop application for people who want to compress images and videos on their own computers. It runs on Windows, macOS, and Linux, and is aimed at individuals rather than teams seeking a shared cloud service. Its local, offline processing suits solo users and small workflows that prioritize keeping files on the desktop instead of uploading them to a service.
The image workflow combines batch compression with controls for quality, format, and dimensions. Users can crop, rotate, and flip images, convert among JPEG, PNG, WebP, and GIF, and preview compression results with before-and-after comparisons. Metadata preservation is also supported, which can matter when image information should remain attached through processing. These tools make CompressO more than a single-purpose compressor, though the documented format conversion scope is focused on those four image formats. The project also includes video editing and conversion features.
There is no subscription decision to weigh: CompressO is described as free, with no premium tiers. Its fit is clearest for people looking for local batch work across desktop systems and a combination of compression, resizing, editing, and conversion in one app. It is less suitable for workflows that depend on browser access, cloud collaboration, or an API. Choose it for an offline desktop process; consider another tool if integration with hosted services or a team workflow is central.
Your product? Our editors can test CompressO in depth and publish a review, labelled as paid · from $149/mo →
CompressO pricing
CompressO fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Compression modes | Not verified |
| Batch processing | Yes |
| API access | Not verified |
| Max upload size | Not verified |
| Image resizing | Yes |
| Supported formats | JPEG, PNG, WebP, GIF |
| Metadata controls | Yes |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | compresso.codeforreal.com |
| Facts checked | 24 Sep 2026 |
Alternatives to CompressO
- TinyPNGA flexible compressor for web workflows, batch processing, and automated image pipelines.9.3
- OptimoleA strong WordPress-focused optimizer for responsive images, modern formats, and CDN delivery.9.2
- ThumborA self-hosted image service with URL transformations, smart cropping, and format selection.9.1
See all CompressO alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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