Free online image tools
Free Online Image Compression
ImageTool.app's online image compressor can quickly compress your image size to less than 1MB, and allows you to compress it to a specific size, such as 50kb, 20kb, 100kb, 200kb, 500kb and above. Compress JPG, JPEG, PNG or WEBP images without any loss of quality.
Fast processing
No server upload — images are compressed right in your browser.
Privacy first
Files stay on your device. Nothing is stored, tracked, or shared.
Download freely
Grab the result instantly.
Compress by format
A dedicated compressor for every format
Tuned separately for alpha channels, palettes, vector code and animation frames. Each one accepts only its own format — just drop and go.
PNG Lossless Compression
Smaller PNGs, faster loads
Compress JPGJPG Lossless Compression
Offline local lossless compression — images processed on your device, no upload.
Compress JPEGJPEG Lossless Compression
Offline local lossless compression — images processed on your device, no upload.
Compress SVGSVG Lossless Compression
Smaller SVGs, just as crisp
Compress GIFGIF Lossless Compression
GIFs that open instantly, animation still smooth
CompressDownload ImgZilla for faster batch compression
Want faster batch compression and stronger privacy? The ImgZilla desktop app does everything locally on your Mac — just drag and drop.
- 100% local processing — images are never uploaded
- Multi-threaded batch compression, up to 90% smaller
- Originals auto-backed up to Trash, recoverable anytime
- Compare before and after with the built-in image compare tool
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