StreamJack

**StreamJack, your Windows audio streaming client — lightweight and no-frills.**

Stream your PC audio (microphone, audio interface, system output, etc.) live to an

Icecast or Shoutcast v2 server, with ffmpeg handling all the

capture, encoding, and transmission tasks in the background. Designed as a lightweight alternative to

BUTT (Broadcast Using This Tool), featuring reusable server profiles and

simultaneous local recording while streaming.

### Features

- Icecast/Shoutcast server profiles: create, import/export (key=value text format)

- Windows audio capture (DirectShow) with automatic device detection

- MP3 / OGG / AAC formats, configurable bitrate

- Simultaneous local recording (using ffmpeg's `tee` output: save a local file while streaming)

- Single-instance lock (one stream at a time; prevents accidental duplicates)

- Automatic light/dark theme (follows system settings)

- Real-time CPU/network monitoring during the stream

### Platform

- Windows 10/11 only

- ffmpeg included with the installer — no separate downloads or configuration required

### Links

- Source code: https://github.com/old-dov/OnlyAudio-by-AudioFeel/tree/master/streamjack

(StreamJack is now part of the same repository as OnlyAudio)