Reduce image file sizes dramatically without visible quality loss. Our smart compression engine optimizes JPG, PNG, and WebP images for web, email, and storage — instantly and free.
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⬇️ Download Compressed Image(s)Large images slow down websites, fill up storage, and make emails heavy. DocsFlow's Image Compressor uses smart compression algorithms to reduce file sizes by 40-80% while maintaining visually excellent quality — often indistinguishable from the original.
JPG/JPEG compression: Uses DCT (Discrete Cosine Transform) to identify and remove visual data that human eyes are least sensitive to. Higher quality = less data removed = better quality but larger file.
PNG compression: Uses lossless algorithms (deflate/LZ77) to reduce file size without any data loss. PNG cannot be compressed as aggressively as JPG but maintains perfect quality.
WebP compression: Uses both lossy and lossless modes with more efficient algorithms than JPG or PNG, producing smaller files at equivalent quality.
80% quality is our recommended sweet spot — most images look visually identical to the original while being 40-60% smaller. For photos where slight quality reduction is acceptable (thumbnails, previews), 60-70% offers even smaller sizes.
Typically 40-80% size reduction. JPG images with lots of complex detail compress less than simple graphics or large white-space images. Average compression is around 50-60%.
At 80%+ quality, compression artifacts are virtually invisible. At 60-75%, quality is still very good for web use. Below 50%, some degradation becomes noticeable.
Yes. Upload up to 20 images simultaneously. All compressed files are packaged into a ZIP archive.
Yes, our compressor removes EXIF metadata (camera info, GPS coordinates, etc.) by default, which also contributes to smaller file sizes. This is generally desirable for web use and privacy.
Setting a max width resizes images wider than that value to the specified width while maintaining aspect ratio. This is useful for web optimization where images larger than the display size waste bandwidth.