Qucs-S is a circuit simulation program based onQucs circuit simulator. The "S" letter indicates SPICE. The purpose of the Qucs-S project is to use free SPICE circuit simulation kernels with the GUI based on Qt toolkit. It merges the power of SPICE and the simplicity of the Qucs GUI.
Publisher’s description
What is Qucs-S?
Qucs-S by The Qucs Team is open-source Windows software in the pc games category. It is written in C++. Besides Windows, it is available for Linux.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 64-bit Windows. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 26.1.1, released on April 26, 2026. The version history goes back to October 10, 2023: 12 releases, all linked to the official files. That is about 4.7 releases a year.
Popularity and file types
The source code on GitHub (ra3xdh/qucs_s) has 1,410 stars. Similar programs include OpenTTD, RetroArch and Celestia.
Project description on GitHub: “Qucs-S is a circuit simulation program with Qt-based GUI”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Also runs on Linux
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: Qucs-S is an open-source pc game tool for 64-bit PCs. It is actively maintained. Administrators can deploy it unattended.
Is Qucs-S safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
98D4DA0CB43FA657660DD28E762F141309343D52D69AD11B59D8E219C790BBCF· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 12 versions ›12 versions over 3 years · about 4.7 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 26.1.1Latest | April 26, 2026 | — | 64-bit EXE (Inno Setup) |
| 26.1.0 | April 9, 2026 | — | 64-bit EXE (Inno Setup) |
| 25.2.0 | September 6, 2025 | — | 64-bit EXE (Inno Setup) |
| 25.1.2 | April 8, 2025 | — | 32-bit EXE (Inno Setup) |
| 25.1.1 | March 14, 2025 | — | 32-bit EXE (Inno Setup) |
| 24.4.1 | November 14, 2024 | — | 32-bit EXE (Inno Setup) |
| 24.4.0 | October 31, 2024 | — | 64-bit EXE (Inno Setup) |
| 24.3.2 | September 23, 2024 | — | 64-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id TheQucsTeam.Qucs-S -escoop install extras/qucs-sQucs-S-26.1.1-win64-setup.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Also for other systems
flatpak install flathub io.github.ra3xdh.qucs_sInformation
- Publisher
- The Qucs Team
- Category
- PC games
- Licence
- GPL-2.0
- Price
- Free
- Source code
- github.com/ra3xdh/qucs_s
- Written in
- C++
- Content rating
- All ages
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (Inno Setup)
- Other platforms
- Linux
- Version
- 26.1.1
- Released
- April 26, 2026
- Added to the catalogue
- October 10, 2023
- Versions listed
- 12
- Updates / year
- 4.7
- GitHub stars
- 1,410
- GitHub forks
- 176
- Website
- ra3xdh.github.io
- winget ID
- TheQucsTeam.Qucs-S
- Scoop package
- extras/qucs-s
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Qucs-S free?
Yes. Qucs-S is open-source software under the GPL-2.0 licence.
Is Qucs-S safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Qucs-S with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Qucs-S be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Qucs-S run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Qucs-S?
The versions page lists all 12 versions with links to their official installer files, back to October 10, 2023.
What are alternatives to Qucs-S?
OpenTTD, RetroArch, Celestia, Steam and PPSSPP. The alternatives page compares them.
