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s-tui

Open source

s-tui is a terminal tool that stress-tests a CPU and graphs its temperature, frequency, power and utilization in real time.

Visit s-tui View on GitHub
amanusk.github.io
s-tui homepage screenshot
GitHub stars
5.1k
Last commit
17 days ago
Repository age
9 years
Version
v1.5.0
Licence
GPL-2.0
Self-hosted
Yes

About s-tui

s-tui, the Stress Terminal UI, is a command-line utility for monitoring and stress-testing a computer's processor. It shows CPU temperature, frequency, power and utilization as graphs inside the terminal, which is handy on servers, single-board computers or any machine where you do not want a graphical desktop.

The tool can generate load to test cooling and stability while you watch the graphs, and the table of contents mentions throttle indicators, configuration files and threshold scripts that run when readings cross limits. It is installed with pip on x86 and ARM, with packages and instructions for Ubuntu, Debian, Arch, OpenSUSE and Fedora. It is written in Python using urwid and psutil.

s-tui is licensed under GPL-2.0 and runs locally with no server or hosted version. It suits system administrators, overclockers and hardware enthusiasts who want a quick, scriptable way to check thermal behavior.

Key features

  • CPU temperature and frequency graphs
  • Power and utilization monitoring
  • Built-in CPU stress testing
  • Indicators for CPU throttling
  • Threshold scripts and saved configuration
  • Install with pip or distro packages

Good fit for

  • →Checking CPU cooling under load
  • →Monitoring servers over SSH
Built with
Python
Tags
cpu
monitoring
stress-test
tui
terminal
python
temperature
cli

s-tui: questions and answers

What is s-tui used for?
s-tui is a terminal tool that stress-tests a CPU and graphs its temperature, frequency, power and utilization in real time. It is a good fit for checking CPU cooling under load and monitoring servers over SSH.
Is s-tui open source?
Yes. s-tui is open source under the GPL-2.0 licence. Its source code is on GitHub at amanusk/s-tui and is written mainly in Python.
Is s-tui free?
Yes. s-tui is open source, so the software itself is free to use.
What are some alternatives to s-tui?
Similar open-source tools in the Monitoring & Observability category include Bottom, Nvitop and Glances. SaaS products in the same category include AppSignal, Amazon CloudWatch and AppDynamics.
Is s-tui actively maintained?
Yes. The most recent commit to s-tui was on 15 September 2026, and the latest release is v1.5.0, published on 19 August 2026. The project has 5.1k stars on GitHub.

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