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 – 101 607 B, saved – 768 529 B (88.32 %)
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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.


  • Lossy (visually lossless) and lossless optimizations
  • Referenceless image quality assessment
  • Negligible degradation on subsequent runs
  • Nearly optimal compression
  • Fast parallel processing on modern multi-core CPUs
  • Advanced quality metrics based on human perception
  • Full color management with ICC v4 profile support
  • Smart Convert to sRGB option
  • Integration to system file managers
  • Extremely simple optimization settings
  • Strips excessive metadata (Exif, XMP, IPTC, comments, etc)
  • Losslessly auto rotates JPEG photographs according to Exif Orientation tag
  • Preserves useful metadata (Android 9-patches, aPNG, etc)
  • Handles most popular image formats: JPEG, PNG, GIF and SVG
  • Cross-platform CLI and GUI for Mac, Windows (coming later) and Linux (coming later)
  • Minifies Windows Icons/Favicons (ICO) and Apple Icons (ICNS)

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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 by Google
Original – 13 504 B, optimized – 7 076 B, saved – 6 428 B (47.60 %)
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Apple Event photo by Apple
Original – 280 233 B, optimized – 221 192 B, saved – 59 041 B (21.07 %)
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CRS-4 Mission Launch by SpaceX
Original – 342 322 B, optimized – 215 197 B, saved – 127 125 B (37.14 %)
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Observatory concept by SpaceX
Original – 1 909 774 B, optimized – 630 660 B, saved – 1 279 114 B (66.98 %)
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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