Audio Recording Tab by SPYder4

Audio Recording Tab records the sound playing in a browser tab and saves it as an MP3 or WAV file. Only the chosen tab is recorded: other tabs, notifications and system sounds stay out of the file.

Features:
- Record the current tab with one click or a hotkey (Alt+Shift+R).
- "Wait for sound" mode (Alt+Shift+W): recording starts when audio begins and stops when the track ends or after 5 seconds of pause.
- MP3 with a selectable bitrate, or lossless WAV.
- File name template for saved recordings.
- Works with audio and video players, media loaded from other sites and endless internet radio streams (Icecast/Shoutcast, MP3 and AAC).
- Record from an audio device (microphone, virtual cable, Stereo Mix, PipeWire/PulseAudio monitor) for sound a tab does not hand over, with a built-in setup guide for macOS, Windows and Linux.
- Unsaved recordings survive a browser crash and can be saved afterwards.
- Interface in English, Ukrainian and Russian.

Privacy: no data collection, no analytics, no accounts. Everything is encoded locally and saved to your computer.

Open source (GPL-3.0): https://github.com/lyapupastar-png/AudioRecTab