Download is FREE
For evaluation purposes
Some features are not available without a license

"It's very simple to use, yet powerful"
Glenn Summerfield,
Director of Product Development

"I wish I had had something like it when I was at Tellabs."
Tony Kordyban, author of

Download Latest Version
Only one download is required for all users of Heat Sink Designer.
System requirements are minimal.  The download includes a demo catalog of heat sinks.

For a free trial
Click on "Download" and follow the installation instructions
You may use the software  in "Trial Mode" as long as you like
Trial Mode is identical to the licensed version except:  length and width are fixed and files cannot be opened or saved.

For a new purchase
Click on "Download" and follow the installation instructions
Click on "Purchase"
You will receive an email with a License ID to unlock your software
You will receive full support for one year

For existing users
To upgrade your current version, click "Download" and follow the installation instructions.  It will run on your licensed machine.

Our Guarantee
If at any time, for any reason, you are not satisfied, you will receive a complete refund.  We may ask you why, but only so we can improve our results.

 System Requirements
OS:  Windows 2000, XP, Vista
CPU: Intel Pentium 300MHz or higher
Disk Drive: min 200MB available
Video Card: no special requirements
Network Adapter: installed and activated