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kitten is an open source programming language created in 2012 by Jon Purdy.

#408on PLDB 12Years Old
Download source code:
git clone

Try now: Riju

Kitten is a statically typed concatenative language with effect types.

Example from Riju:
"Hello, world!" say
Example from hello-world:
"Hello World" say

Language features

Feature Supported Token Example
Strings "
"Hello world"
Print() Debugging say

View source

- Build the next great programming language · About · Resources · Acknowledgements · Part of the World Wide Scroll