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About Keyman

Originally created in 1993 to type Lao on Windows, Keyman is now a free and open source keyboarding platform which allows anyone to write a keyboard layout for their language. Keyman is available for many platforms, including Windows, macOS, iOS, Android, Linux and the web.

Keyboard layouts are defined with a clear and easy to understand keyboard grammar. Keyman's contextual input model means keyboard layouts can be intelligent and make it simple to type even the most complex languages. Keyboard layouts are distributed through an open catalog to all major desktop and mobile platforms.

About SIL International

Keyman is created by SIL International. Partners in Language Development, SIL International is a faith-based nonprofit organization committed to serving language communities worldwide as they build capacity for sustainable language development. SIL does this primarily through research, translation, training and materials development.

You can learn more about SIL International on the SIL International web site.

About National Polytechnic Institute of Cambodia

One of the Keyman international software teams operates out of the National Polytechnic Institute of Cambodia. The NPIC is Cambodia's premier center for vocational training and higher education and is located in Phnom Penh.

Current Developers

Marc Durdin

I wrote the first versions of Keyman, as a teenager while living in Laos, in between home schooling and riding my bicycle around town fixing NGO computers. After moving to Tasmania for University, where I completed a Bachelor of Computing degree, I worked with my wife for a year in Papua New Guinea as a volunteer with Australian Volunteers International. I continued part-time development of Keyman during and after University and started working full time on the full suite of Keyman projects in 2005.

Outside work I still ride my bike. We have two daughters and one son. After living in Phnom Penh, Cambodia for two years, our family is back in Australia where I continue to lead the Keyman team within SIL. I can speak, read, and write, to varying degrees, Khmer, Lao, Thai and Tok Pisin, and used to speak French as a child.

My personal blog can be found at and my Twitter account is @MarcDurdin.

Makara Sok

My name is Makara. I have just graduated with an MA in Linguistics. The topic of my thesis was about how to convert Khmer words into IPA. It was a really fun project to do because I got to incorporate my limited knowledge in coding into the making of the tool with the help of my advisor, and contribute to Khmer language research. I love to explore new technological things and that is why I am now here to help and learn from the Keyman team.

Joshua Horton

I grew up in the United States watching lots of science-fiction shows. I always loved the grand vision of the future those shows set out, with people of various ethnicities, races, and even species all working together in harmony... well, at least most of the time. This led me to a stint as a graduate student at the University of Florida, during which time I became interested in work in natural language processing and computational linguistics. While searching for data necessary for my research, I became aware of the technological issues suffered by many of the world's people groups - a problem that Keyman has been addressing for years. When someone lacks the ability to type effectively in their own language, how can we communicate or collaborate effectively with them?

Growing up during our new "Information Age" has given me a great appreciation for what technology can do to bring people together and facilitate cross-cultural relationships, but it can only do so when people can effectively use it. Toward this end, I completed a Doctorate of Computer Engineering there in August 2015, after which I worked for a year and a half as an adjunct lecturer at the University of Florida. Now, as of May 2017 I've joined the Keyman team as a software developer.

Eberhard Beilharz

I am one of the few non-native English speakers in the team, coming from Germany. I have a degree in computer science from the University of Applied Sciences in Karlsruhe. After working in a small software company for several years I joined SIL’s language software development department where I worked on different projects with a focus on maintaining cross-platform compatibility of our products. During my time with the Keyman team I mainly worked on all aspects of Keyman for Linux.

If I happen to have some spare time I enjoy reading, bicycling and other outdoor activities.


I'm a Texan from a family of engineers, and have an MS in Software Engineering from Southern Methodist University. Since 2000, I've been working as a software developer, and in 2013, my family moved to southeast Asia where I joined one of SIL's Language Technology teams. As of May 2017, I've been working remotely with this entertaining and cross-cultural team. It's been a very encouraging environment as we learn together how to improve Keyman for our users.

My wife and I have two children. I also enjoy playing Ultimate (frisbee), going to the gym, and playing boardgames.

Previous Contributors

Tom Bogle

I grew up in beautiful Minnesota (or Minne-SNOW-ta as some people call it). I graduated with a degree in computer science from Rose-Hulman Institute of Technology in 1991. After working as a consultant and contract programmer for several years in Chicago, my family and I moved to Waxhaw, NC. Since 1998, I have worked on various SIL language software projects to help linguists and translators do their jobs. I am fluent in Spanish, which I learned from my wife.

In addition to my software work, I also enjoy swimming and other water sports, baking and cooking, day hiking, and working with youth. Since 2015, my wife and I have been welcoming foster children into our home.


I'm from Northern Ireland and I have a Natural Sciences degree from Cambridge. I've been working on the Linux side of Keyman since May 2018. Prior to that I've been working as a software developer and/or volunteering on various free and open software projects.

I enjoy audax, other non-speedy cycling, and board games.

Social Media and Mailing Lists

SIL Keyman Community Forum
Keyman Announcements by Email

Open Source Credits and Kudos

Cloudflare speeds up and protects millions of websites, including ours. Their global CDN helps ensure the Keyman keyboards remain available world-wide. Many thanks for their free professional plan as a way of supporting the Keyman open source development.

We are now using BrowserStack to test KeymanWeb and browser and renderer support for various languages and scripts. BrowserStack is an awesome tool to automatically test your website across thousands of different devices and browsers, instantly. They have kindly sponsored us with a free plan as a way of supporting the open source development of KeymanWeb! Many thanks, BrowserStack :)

Keyman uses Sentry for error monitoring. Thank you to Sentry for sponsoring the Keyman project with a free plan!

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