Image Compressor
Make photos and images smaller without losing visible quality.
- 100% free
- Images never leave your device
- Before/after comparison
Last reviewed by the OnlineToolPro team
Drop an image to compress
Drag and drop, paste, or choose a file. Files stay on your device.
What is the Image Compressor?
Big images slow down websites and fill up email attachments. This tool re-saves your image at a quality you choose — usually a fraction of the size with no visible difference — and can shrink its dimensions too.
How it works
How to use the Image Compressor
3 simple steps. No experience needed.
What can you use it for?
- Make photos small enough to email or upload.
- Speed up a website by shrinking its images.
- Save space on your device.
FAQ
Frequently asked questions
What quality should I use?
Around 70–80% is a good balance for photos. Check the preview — if it looks the same, it's fine.
Why did my PNG get bigger?
PNGs of graphics are often already small. Try WebP, or keep the original.
Are my images uploaded?
No. Compression happens in your browser using the Canvas API.
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