Software · Audio & music

Helvum

Patchbay for PipeWire.

Completely free
Linux
Open source

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub
License: GPL-3.0 — Open source (copyleft)confirmed by Flathub
Open source: Yes
Commercial use: Yesconfirmed by Flathub, Official plan pages (pricing, licence, terms)
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: not documented
Ads: not documented
Platforms: LinuxEstablished by Linux: Flathub
Publisher: Tom A. Wagner, Naveen Prashanth
Latest version: 0.6.2 (25 May 2026)
Latest activity: 25 September 2026
Source code: gitlab.freedesktop.org/pipewire/helvum

Overview

Features described in its Flathub listing: MIDI support.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“It allows creating and removing connections between applications and/or devices to reroute flow of audio, video and MIDI data to where it is needed.” — Flathub, 10 November 2026

At a glance

Helvum is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

Helvum is a graphical patchbay for PipeWire. It allows creating and removing connections between applications and/or devices to reroute flow of audio, video and MIDI data to where it is needed.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 8 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 7 November 2026
Last technical check: 6 November 2026
Description from Flathub — AppStream (Flathub)

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