Freedom251 › Audio Editing Software
Audionaut
What Audionaut is
Audionaut is a free desktop audio editor for arranging multitrack recordings such as stems and field recordings. Its timeline supports named regions, cutting, fades, and rearrangement, while regions can be reused without duplicating their audio. Built-in analysis detects segment boundaries, onsets, and beats for aligned edits or automatic arrangements. Projects carry a tempo, positions can use bars and beats, and Ableton Link can synchronize transport with other software. Stem separation divides clips into drums, bass, other, and vocals, running locally after its model is downloaded. Audionaut’s command-line tool and MCP server expose timeline operations to scripts and MCP-capable AI assistants; setup documentation covers Claude Code and Claude Desktop. The editor runs on Linux, macOS, and Windows and imports and exports WAV, AIFF, MP3, FLAC, and Ogg. Projects use a self-contained package with a human-readable JSON project file. Anonymous usage statistics are opt-in, and the maker says audio, project content, filenames, paths, personal data, and hardware identifiers are not collected. The app checks for updates daily unless disabled and asks before downloading an approximately 80 MB stem-separation model from Hugging Face. Audionaut is offered at no cost under GPLv3, with a commercial licence also available.
Who it suits
Audionaut suits musicians, editors, and sound designers working with parallel recordings or stems. It also fits users who want local stem separation, tempo-aware arranging, and scripting or MCP control.
What it does well
- Edits multitrack recordings with reusable regions
- Detects beats and segment boundaries automatically
- Supports Ableton Link tempo synchronization
- Offers local stem separation
- Runs on Linux, macOS, and Windows
What to know first
- Stem separation requires an approximately 80 MB download
- Daily update checks can be disabled but are enabled by default
- Commercial licensing is separate from GPLv3 use
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free (GPLv3) | Free software under GPLv3; commercial licence also available | Free |
As audionaut.pro lists them, read 12 Oct 2026. The maker's own page has the final word.
Verdict
Audionaut combines multitrack editing, music-aware analysis, local stem separation, and automation interfaces. It is free under GPLv3 across three desktop platforms, with a separate commercial licence available.
Facts from Audionaut's own pages
- AI and scripting
- The command-line tool and MCP server expose timeline operations to scripts and MCP-capable AI assistants. · audionaut.pro, 12 Oct 2026
- Audio analysis
- Built-in analysis detects segment boundaries, onsets, and beats for musically aligned cuts and automatic arrangements. · audionaut.pro, 12 Oct 2026
- Editing
- It supports named regions, timeline arranging, cutting, fades, and reusing regions without duplicating audio. · audionaut.pro, 12 Oct 2026
- Free plan
- Yes · audionaut.pro, 20 Sept 2026
- Maker
- Audionaut is developed and maintained by Klaus Voltmer; the About page does not state a headquarters or founding year. · audionaut.pro, 12 Oct 2026
- MCP integration
- The maker documents setup for Claude Code and Claude Desktop; the MCP server exposes Audionaut commands as tools. · audionaut.pro, 12 Oct 2026
- Multitrack editing
- Yes · audionaut.pro, 20 Sept 2026
- Network activity
- The app checks for updates once daily unless disabled and downloads an approximately 80 MB stem-separation model from Hugging Face on first use after asking. · audionaut.pro, 12 Oct 2026
- Platforms
- The maker lists native versions for macOS, Windows, and Linux; macOS requires version 13 or newer and Apple silicon. · audionaut.pro, 12 Oct 2026
- Privacy
- Anonymous usage statistics are opt-in, and the maker says audio, project content, file names, paths, personal data, and hardware identifiers are never collected. · audionaut.pro, 12 Oct 2026
- Product
- Audionaut is a desktop audio editor for multitrack recordings, designed for editing and arranging parallel audio files such as stems and field recordings. · audionaut.pro, 12 Oct 2026
- Project format
- Projects use a self-contained package with a human-readable JSON project file. · audionaut.pro, 12 Oct 2026
- Stem separation
- Stem separation splits a clip into drums, bass, other, and vocals, and runs locally after downloading its model. · audionaut.pro, 12 Oct 2026
- Support
- The developer invites questions, feedback, and bug reports through GitHub Discussions and the contact page. · audionaut.pro, 12 Oct 2026
- Supported formats
- Audionaut imports and exports WAV, AIFF, MP3, FLAC, and Ogg. · audionaut.pro, 12 Oct 2026
- Supported platforms
- macOS, Windows, Linux · audionaut.pro, 20 Sept 2026
- Tempo sync
- Projects carry a tempo, positions can be expressed in bars and beats, and Ableton Link can sync the transport with other software. · audionaut.pro, 12 Oct 2026
Where Audionaut stands on Freedom251
- Audio Editing Software#51 of 131