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 Logo/Web 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 Logo/Web. You can even publish them on the web for all to try! New! Desktop versions of Terrapin Logo/Web are now in prerelease!
Free to try versions of both Terrapin Logo 4 and Terrapin Logo/Web are available by clicking the appropriate turtle below.