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Tenacious C enables rapid understanding of the C language.

Pointers, memory, and variables are depicted automatically as your program runs.

Perfect for group learning.

Classroom discounts available.


I use Tenacious C to help coworkers understand how C data structures work. Tenacious C provides rapid feedback that other IDEs lack. — Beth, Software Engineer


Trial Package


  • Graphical View
  • 1 source, 1 header per project
  • 50 lines of code per project

Try Free

Lite Package


  • Graphical View
  • 5000 lines of code per project
  • No restrictions on source files


Full Package


  • Graphical View
  • Unlimited lines of code per project
  • Free Upgrades