Rewind, don't re-record.
The moment you wish you'd been recording. Rewinder already was.
One shortcut. Clip saved.
Press anywhere and the last few seconds export to a clean MP4. No setup, no hitting record.
Frequently Asked Questions
No. The buffer lives in memory and only holds the recent past. Nothing touches your disk until you press save, and older footage simply falls off the end.
Straight into a local MP4, in a folder you pick. No account, no cloud, no upload. Your replays never leave your Mac.
Both. Your mic and the system audio land in the same clip, in sync, and you can toggle either one from the menu bar.
It's built to disappear. Rewinder sips CPU while buffering and eases off further on battery, so leaving it on all day costs almost nothing.
Macs running macOS 26. Rewinder is built on Apple's ScreenCaptureKit, which is what keeps an always-on buffer this cheap.
Yes. Rewinder is free and open source, and the download is just the latest release of the public code. Star it, audit it, or build it yourself.