image compressor
Compress and convert images to JPG, PNG, WebP or AVIF with Smart Auto mode, lossless/lossy toggle, quality slider, before/after preview, and bulk ZIP export. 100% client-side.
Getting Started in Seconds
Upload Images
Drag and drop, browse, or paste (Ctrl+V) up to 50 images at once.
Configure Settings
Pick an output format (or Smart Auto), adjust quality, set max dimensions, and toggle lossless or metadata stripping.
Optimize
Click 'Optimize' to compress all images. Watch per-file progress and a space-saved summary.
Download
Download individual optimized files or click 'Download All as ZIP' to export everything in one archive.
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Common
Questions
Have a different question about Image Compressor? Feel free to reach out or explore our other documentation.
1Does my image get uploaded to a server for compression?
Imagine you're using a private machine in your own office—that's exactly how our tool works. We use 'client-side' technology, meaning your photos never leave your browser. All the heavy lifting happens right on your device, ensuring 100% privacy for your personal or professional images.
2Will I lose quality when I compress my photos?
Ever wondered how to shrink a file without making it look 'blurry'? Our compressor uses smart algorithms that strip away invisible data and optimize pixels. You can even use the 'Smart Auto' mode, which tests different formats to find the absolute smallest size while keeping your image looking crisp and clear.
3Can I convert formats like PNG to WebP or AVIF here?
Yes, and it's incredibly simple! Whether you're trying to speed up a website or just need a specific file type, you can upload any common image and choose your output. We even support next-gen formats like AVIF, which can make your files up to 50% smaller than a standard JPEG.
4What is the difference between lossy and lossless compression?
Imagine a master painting—lossless compression is like carefully folding the canvas to fit a smaller frame without losing any detail. Lossy compression actually removes the tiny details you can't see to save massive amounts of space. Use lossy for web images and lossless for archiving important graphics.