The Open Source Digital Signage Tool for Linux


info-beamer allows you to rapidly prototype interactive multimedia presentations on Desktop Linux using the Lua programming language. A directory (called a node) consists of resource files (images, videos, fonts or shaders) and a control script called node.lua. Learn more in the documentation.

Want to use your visualizations on the Raspberry Pi? You can do that too: Just run them on the Pi using info-beamer pi.

Hello World!

gl.setup(1024, 768)

local font = resource.load_font("silkscreen.ttf")

function node.render()
    font:write(120, 320, "Hello World", 100, 1,1,1,1)
See the documentation to learn more. Or take a look at more code examples on github.

Hello World output

Why use info-beamer?

Content automatically reloads on change

Rapid Development

Edit the code for your node, change images or exchange font files. info-beamer will notice your changes and reload changed files. See the effects of your changes immediately.
  • info-beamer uses the linux inotify API to detect changed files or directories.
  • You never have to restart info-beamer to see changes you made. info-beamer can reload updated files for you.
info-beamer is powered by Lua

Powered by Lua

info-beamer is controlled by your Lua code. A very simple API is all you need to create advanced presentations. Lua enables info-beamer to be truly rapid:
  • Update the running code in realtime. There is no need to restart info-beamer.
  • Lua is a simple language. If you have basic programming experience, you'll learn Lua in a few hours.
Various file formats supported

Fileformat Support

Load images and truetype (TTF) fonts. Video playback is supported using the powerful libav library.
Hardware acceleration


info-beamer uses OpenGL and will use hardware acceleration. Full shader support using GLSL.
Organize your code for maximum reusability

Nested Content

Each directory forms a node. A node is the unit of presentation for info-beamer. If a directory contains subdirectories, these create child nodes. Child nodes can be rendered by parent nodes.
Control running code from remote

Realtime control

Send OSC (open sound control) packets to info-beamer. Update the state of your presentation in realtime. Or use TCP to connect to info-beamer to see the debugging output of your running code.
  • Simple UDP protocol and OSC protocol support.
  • Let info-beamer display a directory shared using Dropbox. Since info-beamer will detect any changes to the directory, this will allow you to update your presentation from remote.
Opensource license


info-beamer is opensource software release under the BSD 2-clause license. Use and modify the software as you like.

But wait. That's not all!

Run info-beamer on the Raspberry Pi

info-beamer for the Raspberry Pi

info-beamer also runs on the Raspberry Pi micro computer. Easily deploy your visualizations on those tiny machines. Setting up a Digital Signage display won't get easier. No need to buy overpriced special hardware!

Learn more
Manage Digital Signage in the cloud

info-beamer hosted

Using the new fully managed service you can now control your info-beamer based visualizations easier than ever. Install prepared visualizations with the click of a button on your devices. Upload assets like images and videos and have them distributed instantly. Change settings using a web based interface.

Running info-beamer code won't get easier than that!

Learn more