# VCVRack/Rack

The virtual Eurorack studio

Repository: https://github.com/VCVRack/Rack
Canonical: https://ross.abutalabs.com/products/vcvrack-rack
Homepage: http://vcvrack.com/
Language: C++
License: NOASSERTION
License Family: other
Topics: vcvrack
Last push: 2025-11-04T08:47:14+00:00

## Health v2 (maintenance only)
Score: 55/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 50, release rhythm 35, longevity 100
- inputs: {"age_days": 3579, "days_push": 302, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4407, forks 468 (observed 2026-08-28T04:08:48.427022+00:00)

## What it is
VCV Rack is the open-source host application for a virtual Eurorack modular synthesizer platform, emulating hardware modules in software with a plugin API for third-party modules. It provides a high-performance C++ audio engine, cross-platform GUI, and a large module library.

## Use cases
- simulate a eurorack modular synthesizer on my computer
- learn modular synthesis without buying expensive hardware
- create electronic music with virtual synth modules
- develop custom synth modules with a plugin API
- host VST plugins inside a modular environment

## When to choose
- you want a free, realistic Eurorack simulation with a huge module ecosystem
- you need cross-platform modular synth software with an open plugin API
- you want to learn modular synthesis at low cost

## When to avoid
- you need a full traditional DAW with linear recording and mixing
- you require outside code contributions to be accepted upstream
- you need a fully permissive license - licensing is custom (NOASSERTION)

## Facets
- artifact type: application
- maturity: stable
- function: audio-processing, gui, plugin-system, simulation, graphics
- domain: media, cross-platform, developer-tools
- platform: windows, cpp, cross-platform
- tags: modular-synthesizer, eurorack, music-production, dsp, virtual-studio, synth, audio, macos, linux

## Member repositories
- VCVRack/Rack (main) score 55

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:48.427022+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:21:04.922099+00:00, confidence not recorded.
  - readme: https://github.com/VCVRack/Rack (fetched 2026-08-28T04:08:48.427022+00:00, sha 2060ad090279)
  - homepage: http://vcvrack.com/ (fetched 2026-08-29T09:08:55.724824+00:00, sha 883b9cab02c1)
  - site_page: https://vcvrack.com/docs-v2/namespaces (fetched 2026-08-29T09:08:55.727107+00:00, sha 7240c20bdcac)
  - site_page: https://vcvrack.com/manual/About (fetched 2026-08-29T09:08:55.728971+00:00, sha cb515ae61f41)
- Data as of 2026-08-30T08:39:29.467469+00:00.