Linux · Education & Science
Siril
Astronomical image processor
by Free-astro Team
Official site: flathub.org
About Siril
Siril is an image processing tool specially tailored for noise reduction and improving the signal/noise ratio of an image from multiple captures, as required in astronomy.
Siril can align automatically or manually, stack and enhance pictures from various file formats, even images sequences (movies and SER files).
How to install Siril
- Click Download — the developer's official website opens in a new tab.
- Download the latest version there and run it. Choose Custom/Advanced where offered, and skip any bundled extras.
- Prefer the command line? With Flatpak you can install and update it with: flatpak install flathub org.siril.Siril
- Open Siril once it finishes installing.
Frequently asked questions
Is Siril free to download?
Yes. The Download button sends you to flathub.org, the developer's official site, where Siril is available to download. Flatnic doesn't host or modify any files.
How do I install Siril from the command line?
With Flatpak, run: flatpak install flathub org.siril.Siril. This installs it from the official source and keeps it updated.
Is Siril safe?
Siril downloads directly from the developer. As always, scan the installer with your antivirus and choose Custom setup to skip any bundled extras.
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