Download: Experiment Builder Downloads

[Sam]

Experiment Builder 2.7.1
Last Updated March 30th, 2026

SR Research Experiment Builder is a visual experiment creation tool that runs on Windows and macOS.

Experiment Builder is backward compatible (projects created in earlier versions can be opened and edited in later versions) so there shouldn't be any worries about upgrading. Additionally, existing deployed projects are standalone executables, so upgrading to the latest version will not impact ongoing data collection or research.

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Downloads

• Microsoft Windows (Supports 32-bit (x86) and 64-bit (x64) releases of Windows 10 & 11)
  • Experiment Builder 2.7.1
• macOS (Supports 10.12 up to 26)
  • Experiment Builder 2.7.1
  * Important Note for macOS Users: Changes in recent versions of macOS may exhibit inconsistencies in visual stimulus presentation timing. While macOS can be used to develop and debug experiments, we recommend deploying the task on a Windows PC for data collection if accurate display timing is critical.
  

Video Functionality Warning:

1. Version 2.7.1 discontinued support for the Xvid codec. If your project uses .xvd clips, please replace them - including those in the library manager, datasource, and any video resources used in Display Screens - with clips encoded in a supported video format (e.g., .mp4, .move, or .avi), and remove the existing .xvd files from the library manager.
   
2. For projects using video stimuli, EyeLink Data Viewer version 4.5 or later (on windows / macos / linux) or 5.2 on windows will be required for video playback at the analysis stage.
   

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Installing Experiment Builder

• Windows
  • Download and run the .exe installer from the link above.
    
  • After the main installer completes, click Windows Start  -> All Programs -> SR Research -> Install HASP Driver.
    
• macOS
  • Uninstall previous versions: If you have an older version of Experiment Builder, please uninstall it first by dragging the /Applications/ExperimentBuilder folder to the Trash.
    
  • Install the application: Open the downloaded .dmg file. In the window that opens, drag the ExperimentBuilder folder and drop it into your Applications folder.
    
  • Install the license driver: If this is your first time installing, or if your USB license dongle is not glowing red, install the HASP driver.
    • Go to the /Applications/ExperimentBuilder folder.
      
    • Double-click HASP.dmg, then double-click Install Sentinel Runtime Environment.
      
    • You may need to unplug and replug the USB license dongle after installation.
      
  • Security permissions: When running Experiment Builder for the first time, if you see the error “ExperimentBuilder is damaged and can’t be opened”:
    • Click the Apple logo (top-left corner) -> System Preferences.
      
    • Go to Security & Privacy -> General tab.
      
    • Ensure the setting “Allow apps downloaded from:” is set to “Anywhere”. (You may need to click the padlock to make changes).
      

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Documentation & Support
The latest PDF and CHM versions of the Experiment Builder User Manual and a useful Experiment Builder Project Checklist are bundled with the software installer. They can also be downloaded separately from the Manuals / Documents section of the Learning Resources Forum.

Check out our Getting Started with Experiment Builder guide for pointers to all the relevant learning resourced to help boot strap you into using Experiment Builder, including video tutorials, webinars, template experiments, and frequently asked questions.

Please see the release history thread for update details.

Legacy versions can be found in the Legacy Experiment Builder Versions thread.

We have performed extensive testing to ensure that Experiment Builder 2.7.1 is as bug-free as possible. If you encounter any issues, please contact us at support@sr-research.com.