Typed Racket
Racket Scheme
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Typed Racket

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Typed Racket is Racket's gradually-typed sister language which lets you add statically-checked type annotations to your programs. For more information, see the Typed Racket Guide.


Typed Racket is bundled in the default Racket distribution, which you can download from Racket's download page.

You can also manually install it from the main package catalog with the following command:

raco pkg install typed-racket


The documentation is also bundled in your local copy of Typed Racket.

Copyright (c) 2010-2015 PLT Design Inc.

This package is distributed under the GNU Lesser General Public License (LGPL). This means that you can link this package into proprietary applications, provided you follow the rules stated in the LGPL. You can also modify this package; if you distribute a modified version, you must distribute it under the terms of the LGPL, which in particular means that you must release the source code for the modified software. See http://www.gnu.org/copyleft/lesser.html for more information.