Privacy policy

Effective and last updated: July 19, 2026

Overview

MicMixer is a free and open-source Windows desktop application maintained by BenjiButten. It does not require an account, contain advertising or analytics, or send telemetry or crash reports to the maintainer. Audio processing and application settings remain on the user's computer.

Information stored locally

MicMixer may store the following information under %LOCALAPPDATA%\MicMixer:

• audio-device choices, hotkeys, volumes, routing options, folders, and window state;
• the user's local music library and any media the user chooses to download;
• downloaded copies of yt-dlp and FFmpeg and their version markers;
• the time of the most recent update check; and
• diagnostic logs, which may contain device names, local file paths, operational errors, and media URLs entered by the user.

Logs rotate at 5 MB, are separated by day, and are retained for up to 14 files. MicMixer does not automatically upload these files. A user may choose to provide a log when asking for support. Local data can be removed by closing MicMixer and deleting %LOCALAPPDATA%\MicMixer; doing so removes settings and may also remove the default music library, so wanted music should be backed up first.

Audio and local integrations

Microphone, music, and application audio are processed locally and sent only to the audio outputs selected by the user. MicMixer does not record or upload audio. The optional stream overlay binds only to 127.0.0.1 and exposes status and level information to local clients. The StreamDecky control integration uses a same-user local named pipe. Neither local integration is an Internet service.

Network communication

• Release builds contact the GitHub API when the main window is open to check for updates, at most once every 12 hours. The request identifies itself as the MicMixer updater. GitHub receives normal connection information such as the user's IP address and request metadata.
• If the user accepts an offered update, MicMixer downloads the release archive and checksum from GitHub, verifies the SHA-256 checksum, and installs the update.
• When the user first requests a media download, MicMixer downloads pinned copies of yt-dlp and FFmpeg from GitHub and verifies their SHA-256 hashes.
• When the user submits a media URL, yt-dlp communicates with the service identified by that URL, such as YouTube. That service receives the information normally associated with the request, including the user's IP address and the requested URL.

These services process data under their own policies. See the GitHub Privacy Statement and, for YouTube, the Google Privacy Policy. Other media sources supported by yt-dlp have their own terms and privacy policies.

Data received by the maintainer

The maintainer receives no personal data directly from normal application use. Information voluntarily submitted through GitHub issues, support conversations, or attached log files is handled through the service where the user submits it and is used to answer the request.

Changes and contact

Material changes to this policy will be published in the source repository and on this page. Questions or privacy requests can be submitted through MicMixer's GitHub issue tracker.