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Software · Audio & music

Purr Data

An open source visual programming language for multimedia, based on Pure Data.

  • Completely free
  • Linux
  • Open source

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
  • “Pd can be used to process and generate sound, video, 2D/3D graphics, and interface sensors, input devices, and MIDI.” — Flathub, 10 November 2026

At a glance

All of Purr Data is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0+ & BSD-3-Clause) 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

This package contains Purr Data, which is a fork of Pure Data that bundles a lot of useful extensions, and brings a modern HTML5-based user interface. Pure Data is an open source visual programming environment that runs on anything from personal computers to embedded devices (ie Raspberry Pi) and smartphones (via libpd, DroidParty (Android), and PdParty (iOS). It is a major branch of the family of patcher programming languages known as Max (Max/FTS, ISPW Max, Max/MSP, etc), originally developed by Miller Puckette at IRCAM. Pd enables musicians, visual artists, performers, researchers, and developers to create software graphically without writing lines of code. Pd can be used to process and generate sound, video, 2D/3D graphics, and interface sensors, input devices, and MIDI. Pd can easily work over local and remote networks to integrate wearable technology, motor systems, lighting rigs, and other equipment. It is suitable for learning basic multimedia processing and visual programming methods as well as for realizing complex systems for large-scale projects.

Description from Flathub — AppStream (Flathub)

Sources and checks

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

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