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Professional-grade image optimization suite. Lossless compression, batch processing, and format conversion — all 100% private in your browser.
Everything you need to know about our local image compressor
All image processing happens entirely within your browser using Web Workers and OffscreenCanvas. No image data is ever uploaded to our servers. Your privacy is 100% guaranteed as everything stays local to your device.
Lossy compression (like JPEG) removes some image data to significantly reduce file size, which might slightly affect quality. Lossless compression (available for PNG) reduces file size without any quality loss by using more efficient encoding.
Yes! Use our 'Batch Processing' tab to drag and drop multiple images. You can apply global settings to all images or adjust them individually, then download all compressed files as a single ZIP.
WebP and AVIF generally provide much better compression than JPEG or PNG while maintaining high visual quality. AVIF is the most modern and efficient format, though WebP has broader browser support.
Yes, once the page is loaded, the tool works completely offline. All the compression logic is bundled into the application and runs locally in your browser.
Start by uploading a single image or switch to batch mode for high-volume tasks. No signup, no limits, no uploads.
Encountered an issue or have an idea to make this tool better? We're listening.