Compressor.io review
A straightforward browser compressor for common image formats, with Pro controls for heavier workflows.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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.
Compressor.io pros and cons
- 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
Compressor.io fact sheet, pricing and score →
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