Compressor.io
Compressor.io: A straightforward browser compressor for common image formats, with Pro controls for heavier workflows. Ranked #41 of 85 in Image Compression Software by our editors (5.3/10); pricing: Free plan; best for basic free online compression.
At a glance
- Editor score5.3 / 10
- PricingFree plan
- Best forBasic free online compression
- Free planYes
- Compression modesBoth
- Facts checked24 Sep 2026
Where it wins
- Lossy and lossless compression for JPEG, PNG, SVG, GIF and WEBP
- Free browser-based tier for basic image-size reduction
- Pro adds resizing, quality controls, unlimited compressions and no ads
Where it doesn't
- Uploads are limited to 20 MB
- Resizing, adjustable quality and renaming require the Pro plan
- No API access is currently available
Our verdict on Compressor.io
Compressor.io is a browser-based, cloud-deployed service for reducing image file sizes. It supports lossy and lossless compression for JPEG, PNG, SVG, GIF and WEBP files, making it suitable for solo users and small teams that need a straightforward online optimizer rather than a broader image-management platform. Uploaded images are processed on Compressor.io servers and automatically deleted after compression.
The Free plan covers lossy and lossless compression, with limits on file size and daily usage. The published Pro plan, Web Compressor Pro, adds advanced compression settings, unlimited compressions, image resizing, adjustable compression quality, automatic file renaming and no ads. Pro also includes metadata preservation, while the service’s category details identify resizing and metadata controls as available capabilities. This split keeps basic compression accessible while reserving workflow controls for paid users.
Compressor.io fits a web-only workflow where users can upload files, compress them and download the results without installing software. Its 20 MB upload limit may constrain larger source images, and the lack of currently available API access makes it a poor fit for automated, application-level pipelines. Users who need occasional compression across common formats should find the Free plan focused and practical; those needing batch-like volume, resizing or quality adjustments should consider Web Compressor Pro. Teams seeking desktop deployment, deeper integrations or an available developer API should choose another tool.
Your product? Our editors can test Compressor.io in depth and publish a review, labelled as paid · from $149/mo →
Compressor.io pricing
All 2 Compressor.io plans and prices →
Compressor.io fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Compression modes | Both |
| Batch processing | Not verified |
| API access | No |
| Max upload size | 20 MB |
| Image resizing | Yes |
| Supported formats | JPEG, PNG, SVG, GIF, WEBP |
| Metadata controls | Yes |
| Money-back guarantee | 7 days |
| Deployment | Cloud |
| Platforms | Web |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan (source) |
| Website | compressor.io |
| Facts checked | 24 Sep 2026 |
Alternatives to Compressor.io
- 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 Compressor.io alternatives →
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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