Visually lossless optimizations

Optimage uses advanced metrics to automatically adjust image quality for up to 10x smaller image files that are visually perceived as originals.

Jellyfish photo by 贝莉儿 NG
Original (100% quality) – 870 136 B, optimized – 100 385 B, saved – 769 751 B (88.46 %)
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Nearly optimal compression

Max compression ratio is achieved by exhaustively trying various compression parameters and image data structures using novel and traditional heuristics.

Original – 135 246 B, optimized – 113 545 B, saved – 21 701 B (16.05 %)
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Clean and simple interfaces

Simple native GUI and universal CLI clients are built to work efficiently across many different platforms on desktops and servers.

Optimage App Screenshot

Why use Optimage?

Make your website load faster

When building a website, it is important to make all image assets, photographs and other media as small as possible. Recent studies show that most of mobile users abandon sites that take longer than 3 seconds to load.

Make your app smaller for your users

Image assets in your app are probably bigger than needed. Reduce their size, so that your app is faster to download and install.

Efficient sharing

Optimize your images for faster sharing on social networks and other popular services, while reducing the load on them and saving Internet bandwidth.

Reduce file attachments

There is often a strict file size limit on file attachments in emails and web forms. Reduce your images to meet the requirements or send more.


  • Intelligent lossy and lossless optimizations
  • Advanced quality metrics based on human perception
  • Handles most popular image formats: JPEG, PNG, GIF and SVG
  • Nearly optimal image compression
  • Negligible quality degradation on subsequent runs
  • Fast parallel processing on modern multi-core hardware
  • Full color management with ICC profile support
  • Smart Convert to sRGB option for Web publishing
  • Gamma-correct chroma subsampling
  • Automatic color-to-grayscale conversion
  • Seamless integration into macOS Finder
  • Strips excessive metadata (Exif, XMP, IPTC, comments, etc) for public sharing
  • Losslessly auto rotates photographs to match Exif Orientation tag
  • Preserves some useful metadata (Android 9-patches, aPNG, etc)
  • Beautiful native GUI and CLI clients for Mac, Windows (coming later) and Linux (coming later)
  • Minifies Windows Icons/Favicons (ICO) and Apple Icons (ICNS)
  • Saves images with renaming to any chosen destination folder

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Real examples

All images shown below are for illustration purpose only, these images are the property of their respective and rightful owners.

Google logotype
Original – 13 504 B, optimized – 7 076 B, saved – 6 428 B (47.60 %)
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Tesla Model S product image
Original – 136 962 B, optimized – 66 443 B, saved – 70 519 B (51.49 %)
(Click to switch between results)
Apple event photo
Original – 280 233 B, optimized – 158 228 B, saved – 122 005 B (43.54 %)
(Click to switch between results)
CRS-4 Mission Launch by SpaceX
Original (Adobe RGB) – 342 322 B, optimized (sRGB) – 240 313 B, saved – 102 009 B (29.80 %)
(Click to switch between results)
Observatory concept by SpaceX
Original – 1 909 774 B, optimized – 656 941 B, saved – 1 252 833 B (65.60 %)
(Click to switch between results)

One more consideration

“It takes the energy in one lump of coal to move 1 MB of information across the net.”
A briquette of coal