Compress Images Online for Free
Reduce image file sizes in your browser while keeping the quality you need. No account and no upload required.
Drop your images here
or choose files from your device
How to compress an image
- Choose your imagesSelect or drop one or more supported files.
- Compress them in your browserAdjust quality and output format, then start processing.
- Download the optimized filesReview the size change and download each result.
Supported formats
Image compression without unnecessary complexity
Compression reduces the amount of data in an image so its file is easier to store, send and use online. Smaller files can mean faster transfers, but lower quality settings can also remove more visual detail. SlickCatalog keeps the work in your browser for this tool, so your images stay on your device while you choose the balance between quality and file size.
Frequently asked questions
Is SlickCatalog image compressor free?
Yes. The current image compressor is free to use and does not require an account.
Are my images uploaded?
No. Compression runs locally in your browser with the Canvas API. Your selected image files are not uploaded by the tool.
Which image formats are supported?
The compressor accepts JPG or JPEG, PNG and WebP images.
Does compression reduce image quality?
Compression balances file size and quality. Use the quality control to choose the level that fits your needs.
Can I compress multiple images?
Yes. Select or drop multiple JPG, PNG or WebP images and process them in one batch.
Is there a daily limit?
There is no application-enforced daily limit. Your browser and device still determine how many files can be processed comfortably at once.