RedLight System Audio Recorder

RedLight records the audio playing on your computer, in the format that suits your workflow. Jamming with friends over a video call, catching a beat or loop you're working on before it slips away or backup recording of that podcast you're making — RedLight makes it simple!

Silence handling — choose what happens during quiet stretches:
- Keep everything, silence included
- Start a new file each time the sound returns
- Record to one file with silent stretches removed

Core features:
- Add your own voice: capture the microphone alongside the system audio — summed into one file or written beside it — with automatic levelling and a limiter
- Selective sources: record all system audio at once, or pick just the apps you want — and leave out the rest
- Your format, your quality: WAV, AIFF, CAF, AAC, ALAC or FLAC — 16- or 24-bit, or 32-bit float — at the source's sample rate or one you choose
- Intelligent file management: chunk recordings by duration or file size, and keep your recordings folder under control with automatic cleanup by age or total size
- Live stereo meters so you can see exactly what you're capturing, in real time
- Menu-bar control with a live timer, plus open-at-login and record-on-launch for set-and-forget capture
- Recent recordings list to find, play, and reveal past recordings in one click
- Choose a save location that fits how you work

RedLight is free to try — recordings in the free version stop after four minutes per session. A single one-time purchase, RedLight Unlimited, removes the limit for good. No subscription.
You're responsible for recording only audio you have the right to capture. Everything stays on your computer — RedLight collects no data.

RedLight runs on Mac computers with macOS 14.4 or later.
Mac and macOS are trademarks of Apple Inc., registered in the U.S. and other countries and regions.