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Upload one image or a whole batch and set the maximum file size you need. Free, private, and runs in your browser.
Drag and drop images here
or click to browse — PNG, JPG, or WebP, up to 50 images at once, max 50MB each
Our image compressor uses multi-pass adaptive compression to reach the file size you need. Set an exact target and the engine finds the best balance between quality and size — for a single image or a batch of up to 50, all compressed to the same target and downloadable as one ZIP.
How much can I compress my images?
Compression depends on the image content. Typically, you can reduce file sizes by 50-90% while maintaining acceptable visual quality.
What image formats are supported?
We support PNG, JPG/JPEG, and WebP formats. Files up to 50MB can be compressed.
How does target size compression work?
The tool uses binary search across quality levels to find the highest quality that fits within your target size. It automatically adjusts compression parameters in multiple passes.
What is the difference between lossy and lossless compression?
Lossy compression (JPEG, WebP) reduces file size by removing some image data, which may slightly reduce quality. Lossless compression (PNG) reduces size without quality loss. Our tool uses smart quality search to find the best balance.
Does Image Compressor upload my files to a server?
No. All processing happens entirely in your browser. Your files never leave your device, ensuring complete privacy and security.
Can I compress multiple images at once?
Yes. Drop or select up to 50 images (50MB each) and they are all compressed to the same target size, one after another, with a status for every file. Download them individually or all at once as a ZIP. If a file cannot reach the target, the smallest version found is kept and marked.