Murmur
Ambient sound mixer · Windows

Mix ambient sounds

Improve focus, ease into sleep, or set the mood. Fourteen layered soundscapes, native to Windows. A port of Blanket.

Free · GPLv3 · No telemetry · No account

Features

14 ambient sounds

Save mixes as presets

Custom sounds and YouTube URLs

Lives in the taskbar

Light, dark, or follow Windows

Free and open source

Try it

Drag a slider to start. Share copies your mix as a link.

0 active

Nature

Birds

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Rain

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Storm

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Stream

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Summer night

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Waves

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Wind

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Urban

Boat

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City

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Coffee shop

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Fireplace

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Train

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Generated

Pink noise

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White noise

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Get the app v1.0.0

OS
Windows 10 v19041+ or Windows 11
Arch
x64 · ARM64
License
GPLv3
Download for Windows 81.1 MB
Why trust a certificate?
  1. 01
    Download the certificate

    The .cer file is shipped with each release. Download once per release.

  2. 02
    Install it

    Right-click the .cerInstall CertificateLocal Machine → place in Trusted People.

  3. 03
    Run the installer

    Double-click the .msixbundle. Murmur installs from Start menu like any Store app.

Self-signing keeps the project free and independent. A future release may move to a CA-signed cert or Microsoft Store submission to remove this step.