Image Compressor
Compress images and reduce file size while maintaining quality. Perfect for web optimization. Free, fast, and private. Everything happens in your browser.
Drop image here
or click to browse your files
How to Compress Images
Upload Image
Select or drag and drop any image. Supports JPG, PNG, WebP, and more.
Choose Format & Quality
Pick output format (auto preserves original type) and adjust compression level.
Download
Click "Compress & Download" to save your optimized image.
Why Use Our Image Compressor?
Private & Secure
All compression happens in your browser. Your images never touch our servers.
Instant Results
No upload wait times. Compress images immediately without server delays.
Completely Free
No limits, no watermarks, no signup. Compress unlimited images forever.
Full Control
Choose output format and adjust quality to balance file size and image quality.
Frequently Asked Questions
What happens to image quality when compressed?
Compression reduces file size by removing some image data. Higher quality settings (70-90%) maintain excellent visual quality while still reducing file size significantly.
Which image formats can I compress?
JPG, PNG, WebP, GIF, BMP, and most other image formats. You can choose to output as JPEG, PNG (preserves transparency), or WebP.
Does PNG compression preserve transparency?
Yes. PNG output and Auto mode with a PNG input preserve transparency. High quality settings prefer lossless PNG optimization, while lower settings allow palette reduction for stronger compression.
How much can I reduce file size?
JPEG, WebP, and PNG images often shrink by 40-80% depending on the image and quality setting. For PNG, very high quality may use lossless optimization first, so the size reduction can be smaller when you want to keep more detail.
Are my images uploaded anywhere?
No! All compression happens locally in your browser using JavaScript. Your images never leave your device.