Since 1979, Terrapin has offered the Logo computer language and related products that embody the "no floor, no ceiling" learn-by-doing Logo philosophy. We proudly consider ourselves to be the world's oldest and most experienced Logo company.
Terrapin Logo 4 is the latest version in a long line of Logo language implementations that run on your computer. Terrapin Logo is available for Mac and Windows and includes all the features that make Logo a powerful and fun learning environment along with many exciting new ones that extend Logo's capability and make it easier to use.
Terrapin WebLogo provides all the features of Terrapin Logo directly in your browser on any device. Control and program up to 1000 turtles and create complete Logo programs in an HTML 5 connected browser with Terrapin WebLogo. You can even publish them on the web for all to try!
Free to try versions of both Terrapin Logo 4 and Terrapin WebLogo are available by clicking the appropriate turtle below.