Image Compressor
Compress JPEG and PNG images to reduce file size while maintaining quality. Adjust compression quality with a slider and preview the result before downloading.
- Images never leave your device
- No server upload required
- Works completely offline
- No login or signup needed
How It Works
Upload an image (JPEG or PNG) from your device. Use the quality slider to adjust compression level — lower quality means smaller file size. The tool shows a preview of the compressed image and displays the estimated output size. Click download to save the compressed image. All compression happens in your browser using HTML5 Canvas API. Your images are never uploaded to any server.
Frequently Asked Questions
How much can I compress an image?
Compression depends on the quality slider. You can typically reduce file size by 50-80% with minimal visible quality loss.
What image formats are supported?
Currently JPEG and PNG formats are supported.
Does compression reduce image quality?
Yes, compression trades file size for quality. Use the preview to find the best balance for your needs.
Is there a file size limit?
The tool can handle most images, but very large files (over 20MB) may be slow depending on your device.