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Soundflower

CaskDrivers & HardwareIntelDisabled
Homepage
From homebrew/cask
30-day installs
0
1-year installs
52
Last 365 days
Latest version
2.0b2
Download size
—
x86_64 · dmg
Release cadence
Irregular
0 releases in 30 days

Soundflower is Drivers & Hardware software for Mac.

Quick facts

Chips
Intel
Install
brew install --cask soundflower
Homebrew
Disabled by Homebrew
Also known as
soundflower

These facts were checked on or after . See each source

System requirements

macOSVersionChipsDownloadSource
Build for macOS 27, 26, 15, 14, 13, 12, 112.0b2Intelgithub.com/mattingalls/Soundflower/releases/download/2.0b2/Soundflower-2.0b2.dmgSHA-256 6b5e56d53238cf0f9075886aa40580634fc9d23368239f22eccebfd97c9f8e34HomebrewChecked

How to install Soundflower on Mac

  1. In Terminal, run: brew install --cask soundflower
  2. Homebrew runs the Soundflower.pkg installer, which asks for an administrator password.

Caveats

soundflower requires a kernel extension to work.
If the installation fails, retry after you enable it in:
  System Settings → Privacy & Security

For more information, refer to vendor documentation or this Apple Technical Note:
  https://developer.apple.com/library/content/technotes/tn2459/_index.html

Install without Homebrew

Download the same file Homebrew uses: github.com/mattingalls/Soundflower/releases/download/2.0b2/Soundflower-2.0b2.dmg

SHA-256 only checks that the download is complete; it is not a security certification. See the SHA-256 and download address

Uninstall Soundflower and optional data cleanup

Uninstall command
brew uninstall --cask soundflower

A regular uninstall removes the app and keeps its settings and caches.

Uninstalling also removes

Installer receipts (pkgutil)
com.cycling74.soundflower.*

These entries come from the Homebrew definition, checked . They say what it declares, not what is on your Mac.

Soundflower security facts

Only facts that can be checked, each with its source and date. This is not a safety certification. To check the files you downloaded, scan them on your Mac with OpenNavo.

Distribution
Homebrew
Open source
Yes · github.com/mattingalls/Soundflower · MITChecked
Scan with OpenNavoOpens a scan preview in the OpenNavo app; you decide whether to start it. ClamAV on Mac

Install Details

Tap
homebrew/cask
Installer packages
Soundflower.pkg
Download URL
https://github.com/mattingalls/Soundflower/releases/download/2.0b2/Soundflower-2.0b2.dmg
SHA-256
6b5e56d53238cf0f9075886aa40580634fc9d23368239f22eccebfd97c9f8e34
Homebrew definition
github.com/homebrew/homebrew-cask/blob/HEAD/Casks/s/soundflower.rb
formulae.brew.sh
formulae.brew.sh/cask/soundflower

Installation and removal contents

  • Uninstall uninstall

    View full declaration
    {
  "uninstall": [
    {
      "early_script": {
        "args": [
          "-b",
          "com.Cycling74.driver.Soundflower"
        ],
        "executable": "/sbin/kextunload",
        "must_succeed": false
      },
      "kext": "com.Cycling74.driver.Soundflower",
      "pkgutil": "com.cycling74.soundflower.*"
    }
  ]
}

  • Install pkg

    Source file: Soundflower.pkg

    View full declaration
    {
  "pkg": [
    "Soundflower.pkg"
  ]
}

  • Install postflight_steps

    View full declaration
    {
  "postflight_steps": [
    {
      "steps": [
        {
          "args": [
            "-b",
            "com.Cycling74.driver.Soundflower"
          ],
          "command": {
            "path": "/sbin/kextload"
          },
          "sudo": true,
          "type": "run"
        }
      ]
    }
  ]
}

Questions about Soundflower

Is Soundflower safe?

Homebrew has disabled Soundflower (it is no longer maintained), so it can no longer be installed with Homebrew. It was disabled on Nov 16, 2025.

Is Soundflower open source?

Soundflower’s source code is public on GitHub (mattingalls/Soundflower) under the MIT license.

How do I completely uninstall Soundflower on a Mac?

Run brew uninstall --cask soundflower. It forgets 1 installer receipt and unloads 1 kernel extension.

Does Soundflower run on Apple silicon (M1 and later) Macs?

No. Homebrew installs it only on Intel Macs.

What is the latest version of Soundflower?

The latest version is 2.0b2, added to Homebrew on Nov 14, 2015. Run brew upgrade --cask soundflower to update it.

What else does installing Soundflower add?

It installs through a .pkg installer, which asks for an administrator password.

Sources

Every fact on this page names its source and check date. Facts past their validity read “as of” their date and are no longer stated as current.