Compress Images Online - Free Image Compressor
Reduce image file size while maintaining quality. Supports JPG, PNG, WEBP.
Compression Settings
Drop images here or click to upload
Supports JPG, PNG, WEBP, GIF - up to 20 images
How to Compress Images
- Adjust quality and max width settings (optional)
- Upload your images by clicking or dragging them
- Wait for automatic compression
- Download individual images or all at once
Images are compressed entirely in your browser using client-side JavaScript.
Why Compress Your Images?
Large image files slow down websites, consume storage space, and take longer to share. Our free image compressor reduces file sizes by up to 80% while maintaining visual quality that is indistinguishable to the human eye.
Benefits of Image Compression
- Faster website loading times and better SEO rankings
- Reduced bandwidth usage and hosting costs
- Easier sharing via email and messaging apps
- More storage space on your devices
- Improved user experience on mobile devices
Supported Formats
- JPEG/JPG - Best compression for photographs
- PNG - Ideal for graphics with transparency
- WebP - Modern format with excellent compression
- GIF - Animated images and simple graphics
Tips for Best Results
For web use, 80% quality typically provides the best balance between file size and visual quality. If you need smaller files, try reducing the max width setting to automatically downscale large images.
Frequently Asked Questions
Will compression affect image quality?
At 80% quality (our default), the difference is virtually imperceptible to the human eye. Lower quality settings will show more compression artifacts, especially in areas with gradients or fine details. For most web use, 70-80% is the sweet spot.
Is my image uploaded to a server?
No. All compression happens locally in your browser using JavaScript. Your images never leave your device, making this tool safe for confidential or private photos. You can verify this by disconnecting from the internet — the tool still works.
What does "Max Width" do?
If your image is wider than the max width setting, it will be automatically scaled down proportionally. This is useful when you have a 4000px photo but only need it at 1200px for a website. Smaller dimensions mean smaller file sizes.
Which format should I use for the best compression?
JPEG is best for photographs and complex images. PNG is better for graphics with text, logos, or transparency needs. WebP offers excellent compression for both types but isn't supported in older browsers. Our compressor maintains your original format by default.
Can I compress multiple images at once?
Yes! You can upload multiple images and they'll all be compressed simultaneously. Use the "Download All" button to get a ZIP file with all compressed images. This is perfect for batch-processing a folder of photos.
Why is my PNG file larger after "compression"?
PNG uses lossless compression, so reducing quality doesn't always shrink file size. If the original PNG was already well-optimized, our compression may produce a similar or slightly larger file. For significant PNG size reduction, consider converting to WebP or JPEG if you don't need transparency.