# What programming language does SpaceX use to write rocket software

tunedbyai.io · September 2, 2026

> SpaceX uses a variety of programming languages for different projects and teams. C is used for developing the Falcon 9 and Dragon spacecraft, while...

SpaceX uses a variety of programming languages for different projects and teams. C is used for developing the Falcon 9 and Dragon spacecraft, while Python is used for data analysis, machine learning, and robotics. Java is also used for some projects. The flight software of SpaceX is written in both C and C++. C is strongly associated with UNIX as it was developed to write the UNIX operating system. Dual-core x86 processors have been used in SpaceX's Falcon 9 rocket and the flight software package that operates on each of these processors is written in C. Additionally, SpaceX uses an Actor-Judge system to provide triple redundancy to its rockets and spacecraft, which runs on Linux operating system. LabView, a graphical programming tool that runs on Windows, is also used by SpaceX.

**Also worth reading:** [How much do I need to learn of a programming language to get a decent salary like Rs 60000pm or above?](https://tunedbyai.io/knowledge/how_much_do_i_need_to_learn_of_a_programming_language_to_get_a_decent_salary_like_rs_60000pm_or_above.php) · [What is the best programming language for AI car tuning and engine calibration in 2026?](https://tunedbyai.io/knowledge/what_is_the_best_programming_language_for_ai_car_tuning_and_engine_calibration_in_2026.php) · [Why is Zig a strong choice for automotive programming in 2026?](https://tunedbyai.io/knowledge/why_is_zig_a_strong_choice_for_automotive_programming_in_2026.php)

Canonical: https://tunedbyai.io/knowledge/what_programming_language_does_spacex_use_to_write_rocket_software.php
Markdown: https://tunedbyai.io/knowledge/what_programming_language_does_spacex_use_to_write_rocket_software.php/index.md