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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).
License: GPL-3.0+
Siril can align automatically or manually, stack and enhance pictures from various file formats, even images sequences (movies and SER files).
License: GPL-3.0+
| Release info | New Release on Jun 16, 2026 |
|---|---|
| Release notes | Maintenance release for the 1.4.x series, focusing on bug fixes and stability improvements. • Fixed several sequence-related issues, including file corruption (#1204), a crash when loading a sequence with an out-of-range reference image (#1950), and a regression when reading 16-bit FITSEQ files (#1946) • Fixed an incorrect "not enough disk space" error on macOS external APFS/HFS volumes • Fixed scripts in custom subfolders showing up under "Other" instead of their folder name on Windows • The script repository search now also matches the category column |
| Related tags | astronomy stacking |
| Listing data | Flathub |
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