KMix
KMix is a Linux sound channel mixer for changing sound-card volume.
What KMix is
KMix is a Linux sound channel mixer for changing sound-card volume. It supports several audio platforms and drivers; when ALSA and Open Sound System are both installed, it uses ALSA. D-Bus control lets users and scripts retrieve or set volume levels remotely. You can install KMix through Discover, another AppStream application store, or a distribution package manager. It is free and open-source software under the GPL-2.0+ license, with a listed price of no cost. KDE provides a handbook and forum for support, a bug-reporting link, and a way to browse the source code. KDE also says its software contains no ads or spyware and has no subscription services. The KMix page lists version 26.08.1, dated 2026-09-10, as its latest release shown.
Good
- Free and open-source under GPL-2.0+.
- Supports several audio platforms and drivers.
- D-Bus supports scripted volume control.
- Installable through stores or a package manager.
Watch out
- Available for Linux only.
- No free trial is listed.
Who it suits
KMix suits Linux users who want to adjust sound-card volume or control volume through D-Bus. It may also suit people looking for free, open-source audio software.
Verdict
KMix provides sound-card volume control with driver support and D-Bus automation. It is a Linux-only option, and KDE links to documentation and support resources.
Plans and prices
From KMix's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Free and open-source software · Linux |
The facts
Each one read from KMix's own pages, with the date it was checked.
What it does
- Audio drivers
- KMix supports several platforms and sound drivers, and uses ALSA when both ALSA and Open Sound System drivers are installed.checked 4 Oct 2026
- Installation
- The KMix page lists Linux installation through Discover and other AppStream application stores, or through a distribution package manager.checked 4 Oct 2026
- License
- The KMix page lists the GPL-2.0+ license.checked 4 Oct 2026
- Organization
- KDE describes itself as an international community that builds and distributes free, open-source software, and says anyone can use its software for free.checked 4 Oct 2026
- Privacy
- KDE says its software contains no ads or spyware and no subscription services.checked 4 Oct 2026
- Purpose
- KMix is a sound channel mixer and volume control.checked 4 Oct 2026
- Release history
- The KMix page lists version 26.08.1 dated 2026-09-10 as its latest release shown.checked 4 Oct 2026
- Remote control
- KMix can be controlled and scripted through D-Bus, including getting and setting volume levels.checked 4 Oct 2026
- Sound card control
- The handbook describes KMix as an application for changing the volume of a sound card.checked 4 Oct 2026
- Source code
- KDE provides a link to browse KMix source code.checked 4 Oct 2026
- Support
- KDE links to the KMix handbook and forum for help, and provides a bug reporting link.checked 4 Oct 2026
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