Image Compressor
Reduce image file size by up to 80% without losing quality. Smart PNG quantization (like TinyPNG), JPG optimization, and WebP conversion. Free, private, and runs locally.
Key Features
Private & Secure
Your photos never leave your device. All compression happens locally in your browser.
Blazing Fast
Powered by advanced WebAssembly algorithms (UPNG & Pako). Get near-native compression speeds.
Batch Processing
Drag and drop a folder full of images. Review the size savings for each and download everything in a single ZIP file.
Which Format Should I Choose?
JPG - Best for Photos
Complex colors, real-world scenes. No transparency.
PNG - Best for Graphics
Logos, screenshots, flat art. Supports transparency.
WebP - Best for Web
Superior compression for both photos and graphics.
FAQ
Will my image look blurry?
Not if you use the right settings. For PNGs, our quantization algorithm is designed to be "visually lossless," meaning the human eye cannot easily distinguish the changes. For JPGs, keeping the quality above 70-80% typically ensures a sharp image.
Are my files uploaded to your server?
No. This is a client-side tool. The compression logic runs entirely within your browser using JavaScript and WebAssembly. Your images never leave your computer.
Why is the file size larger after compression?
This rarely happens, but if your original image was already highly optimized (e.g., using a tool like Photoshop's "Save for Web"), re-compressing it might add a small amount of overhead or metadata.