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Client code for the Jasper voice computing platform. Jasper is an open source platform for developing always-on, voice-controlled applications.

Learn more at, where we have assembly and installation instructions, as well as extensive documentation. For the relevant disk image, please visit SourceForge.


If you'd like to contribute to Jasper, please read through our Contributing Guide, which outlines the philosophies to preserve, tests to run, and more. We highly recommend reading through this guide before writing any code.

The Contributing Guide also outlines some prospective features and areas that could use love. However, for a more thorough overview of Jasper's direction and goals, check out the Product Roadmap.

Thanks in advance for any and all work you contribute to Jasper!


If you run into an issue or require technical support, please first look through the closed and open GitHub Issues, as you may find a solution there (or some useful advice, at least).

If you're still having trouble, the next place to look would be the new Google Group support forum or join the #jasper IRC channel on If your problem remains unsolved, feel free to create a post there describing the issue, the steps you've taken to debug it, etc.


Jasper's core developers are Shubhro Saha, Charles Marsh and Jan Holthuis. All of them can be reached by email at, and respectively. However, for technical support and other problems, please go through the channels mentioned above.

For a complete list of code contributors, please see


Copyright (c) 2014-2015, Charles Marsh, Shubhro Saha & Jan Holthuis. All rights reserved.

Jasper is covered by the MIT license, a permissive free software license that lets you do anything you want with the source code, as long as you provide back attribution and "don't hold [us] liable". For the full license text see the file.

Note that this licensing only refers to the Jasper client code (i.e., the code on GitHub) and not to the disk image itself (i.e., the code on SourceForge).