Blink

A time-travelling debugger for Scratch

Blink is an intuitive, yet powerful educational software debugger for Scratch, with support for time-travelling, breakpoints and stepwise code execution.

🢂 Try it out

Documentation

Integrated in Scratch

Open a version of the Scratch Editor with debugger support.

Open Editor

🧭

Demo: Maze

Open the Maze demo project. The player must navigate a maze. Find the bug.

Open Maze

⭐

Demo: Star

Open the Star project. The player must follow the path without touching the water. Find the bug.

Open Star

📖

Open source

View, use and contribute to the source code.

View source

🔬 Research

If you find Blink useful and use it in your research, please cite:

Strijbol, N., De Proft, R., Goethals, K., Mesuere, B., Dawyndt, P., & Scholliers, C. (2024). Blink: An educational software debugger for Scratch. SoftwareX, vol. 25, p. 101617. https://doi.org/10.1016/j.softx.2023.101617