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Welcome

  • Here you will find tools for color enthusiasts
  • Including the world-acclaimed LittleCMS color engine
  • And other amazing and uncommon applications and complements

Open Source CMM

  • FREE under MIT license
  • Written in C99
  • Widely Portable
  • Fast and accurate
  • Mature, evolving since 1998

color management

  • Industrial color management
  • ICC standards
  • Prepress CMYK
  • Contract proofing
  • Embedded systems
  • Spot color matching

quality software

  • Clean and elegant design
  • Object oriented
  • Simple high level interface
  • Rich low level API
  • Plug-in architecture

Easy to use

  • yet incredibly powerful
  • comprehensive documentation
  • Step-by-step tutorial

CMM color engine

OPEN SOURCE small-footprint color management engine, with special focus on accuracy and speed. It fully supports all kind of V2 and V4 profiles, including abstract, devicelink and named color profiles. Free under MIT License

Color translator

Color Translator is the definitive tool for color conversion on TIFF, JPEG, PNG, OpenEXR, WebP and PDF files. Batch conversion on file lists or hot-folders. It can deal with RGB, Gray, CMYK, Lab, Multi-channel. It does black-preservation, smart intents, abstract profile adjustment chains, devicelink profiles, named color profiles, linear light color spaces and many, many more. Demo version works for free on files under 60K.

Color translator MINI

If you only need RGB conversions and don’t do PDF, Color Translator MINI is definitively for you. For the price of a cup of cofee and some cookies, you get all the color management power of color translator!

Fast float plugin

If you are already using Little CMS color engine in your products and want to give it a huge thoughput boost, check out this plug-in

Color abstractor

The abstractor allows you to create abstract profiles for two use cases: component adjusts in a given space, what is often known as sooft-proofing and adjustments on CIE CAM16 color appearance model.

From our news and articles

See here announcements, comments, notes, articles and other thoughts on the color management world.

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Little CMS 2.14 released

By Marti Maria on November 2, 2022

Little CMS 2.14 released I am glad to the announce the release 2.14 of the Little CMS open source color engine. Changes: lcms2 now fully implements ICC specification 4.4 New multi-threaded plug-in several fixes to keep fuzzers happy Remove check on DLL when CMS_NO_REGISTER_KEYWORD is used Added more validation against broken profiles Add more help to several tools ICC Version 4.4 and the multithreaded plug-in are important milestones. Fixes because fuzzers have been many, none of them harmful in terms of exploits.

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Little CMS 2.13.1 released

By Marti Maria on January 28, 2022

Little CMS 2.13.1 released I am glad to the announce the release 2.13.1 of the LittleCMS open source color engine. Little CMS intends to be a small-footprint color management engine, with special focus on accuracy and performance. It uses the International Color Consortium standard (ICC), which is the modern standard when regarding to color management. The ICC specification is widely used and is referred to in many International and other de-facto standards.

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Color Management on Qt with LittleCMS

By Marti Maria on December 9, 2020

I’ve been using Qt, by Qt Group for years and I must confess I am delighted. Many toolkits promises the mantra “Code once and run everywhere”, but indeed this works with Qt. Qt6 was announced few days ago. They now include some sort of color management on images QColorSpace, but still no neat way to use complex ICC V4 pipelines. In this small article I will show you how to do true RGB color management in Qt, by using LittleCMS, with very few lines of code.

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Browser check

By Marti Maria on September 9, 2020

It is Browser color management check day! As some users asked for this, I am recovering an old test I posted in lcms blog many years ago. Basically, it uses special images with crafted embedded profiles. If profiles are correctly honored, a text will show up. But not all web browsers behave equally. Here are the old tests. They only check V2 compatibility. No surprises. The images are using embedded profiles to do the trick.

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Who is using the Little CMS engine

Some companies and applications using the free CMM engine.