# Nomacs (open-source image editor)

> Nomacs is a free, open-source image editor for Windows, macOS and Linux. Nomacs is a free image viewer for windows, linux, and mac systems. It has 3,218 GitHub stars and is released under the GPL-3.0 license. Its source code is on GitHub at nomacs/nomacs.

nomacs is a free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images. nomacs is licensed under the GNU General Public License v3 and available for Windows, Linux, FreeBSD, Mac, Haiku, and OS/2.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/nomacs/nomacs |
| Platforms | Linux, macOS, Windows, BSD |
| Interface | desktop GUI |
| GitHub stars | 3,218 |
| License | GPL-3.0 (open source) |
| Replaces | n/a |
| Language | C++ |
| Website | https://nomacs.org/ |
| Official | no |
| Category | Image editing & photo |
| Latest release | 3.22.4 (Oct 1, 2026) |
| Last commit | Oct 5, 2026 |

## Install

Download a build for your system from the project's releases (https://github.com/nomacs/nomacs/releases) or website, or build it from source by following the README.

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