Radium
Radium is an audio and MIDI multitracker for recording, editing, and mixing audio.
What Radium is
Radium is an audio and MIDI multitracker for recording, editing, and mixing audio. Its editor supports graphical changes to note positions and effects, text editing, and an optional piano roll. It can sequence MIDI and record and play audio from a hard drive. For sound design, it includes granular synthesis, built-in effects and instruments, and an embedded Pure Data instrument on Linux. The feature list names AU, LADSPA, LV2, VST, and VST3 plugins, although support varies by operating system. Playback can synchronize frame-accurately with Ardour, Bitwig, or MASCHINE, and scripting is available in Python and Scheme. Radium runs on Linux, macOS, and Windows. The maker describes it as open source and links to its Git repository. Demo versions are available, and a subscription is not required to use the program. It works without an internet connection and has no copy protection, keyfile, or serial number. Buyers and subscribers receive support. Subscription and one-time purchase options are listed, but no fixed prices are stated.
Good
- Runs on Linux, macOS, and Windows.
- Supports audio recording and MIDI sequencing.
- Includes built-in effects and instruments.
- Works offline without copy protection.
Watch out
- Plugin-format support varies by operating system.
- No fixed plan prices are stated.
- The optional Pure Data instrument is listed for Linux.
Who it suits
Radium may suit people who want to record, edit, and mix audio alongside MIDI sequencing. Its scripting, plugin support, and synchronization options may also be useful to users building a more connected music-production workflow.
Verdict
Radium brings multitrack audio, MIDI sequencing, editing, and sound-design tools into one application. Its platform-specific plugin support and unspecified plan prices are useful details to weigh before choosing an access option.
Plans and prices
From Radium's own pricing page, checked 20 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Subscription | — | Download and upgrade access · Support · One year of updates |
| Buy | — | One year of updates · Support · The program continues working after the update period |
| Radium purchase | — | One year of updates · Support · Radium keeps working after the update year ends · One-time purchase; the page does not state a fixed price. |
| Radium Subscription | — | Download and upgrade access · Support · Radium keeps working after the subscription ends · Subscribe for a year; the page does not state a fixed price. |
The facts
Each one read from Radium's own pages, with the date it was checked.
What it does
- Audio and MIDI
- Radium is an audio and MIDI multitracker with MIDI sequencing and hard-drive audio recording and playback.checked 11 Oct 2026
- Contact
- The site provides an email address for contact and support inquiries.checked 11 Oct 2026
- Demo
- The download page links to demo versions, and says a subscription is not required to use the program.checked 11 Oct 2026
- Editing
- The editor supports graphical editing of note positions and effects, text editing, and an optional piano roll.checked 11 Oct 2026
- Extensions
- The product supports scripting in Python and Scheme.checked 11 Oct 2026
- MIDI sequencing
- Yeschecked 20 Sep 2026
- Multitrack editing
- Yeschecked 20 Sep 2026
- Offline use and copy protection
- The maker says an internet connection is not needed, the program has no copy protection, and it uses no keyfile or serial number.checked 11 Oct 2026
- Plugins
- The feature list names AU, LADSPA, LV2, VST, and VST3 plugins; the platform matrix shows that plugin-format support varies by operating system.checked 11 Oct 2026
- Product
- Radium describes itself as a music editor with a new interface and a digital audio workstation for recording, editing, and mixing audio.checked 11 Oct 2026
- Sound design
- Features include granular synthesis, built-in effects and instruments, and an embedded Pure Data instrument on Linux.checked 11 Oct 2026
- Source code
- The maker describes Radium as open source and links to its Git repository.checked 11 Oct 2026
- Support
- The maker says subscribers and buyers receive support and can suggest features; larger subscription amounts receive higher priority for feature requests.checked 11 Oct 2026
- Synchronization
- Radium says playback can synchronize frame-accurately with Ardour, Bitwig, or MASCHINE.checked 11 Oct 2026
- Third-party plugins
- Yeschecked 20 Sep 2026
Where it runs
- Platforms
- The download page offers full versions for Linux, macOS, and Windows, with requirements of glibc 2.34 or newer, macOS 14 or newer, and Windows 8 or newer, respectively.checked 11 Oct 2026
- Supported platforms
- Linux, Windows, macOSchecked 20 Sep 2026
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