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Redpen for Mac

Annotate screenshots with voice notes, then share them with an AI model.

By HMDRAMS-DEV. Free and open source, MIT licence.

Get it with OpenDMG View source on GitHub

Redpen at a glance

Version
0.1.7
Released
6 October 2026
Download size
22 MB
Works on
Apple silicon and Intel
Licence
MIT
Category
Video and Screen Capture
Developer
HMDRAMS-DEV
GitHub stars
0

About Redpen

Voice screenshot markup for macOS. Circle it, say why, and paste it into your chat with a model.

How to install Redpen on a Mac

  1. Get OpenDMG. It is a free app store for open source Mac apps. Download OpenDMG.
  2. Search for Redpen and press Get. OpenDMG downloads version 0.1.7 from HMDRAMS-DEV's own GitHub release.
  3. Open it. The download is checked against its SHA-256 fingerprint and its signature is checked on your Mac before it lands in Applications.

Updates to Redpen show up in OpenDMG and install with one button. No account is needed.

Prefer to do it by hand? The developer's file is on GitHub: Redpen.dmg (22 MB).

What is new in Redpen 0.1.7

Voice is built in: Parakeet turns speech into text on your Mac, no Superwhisper needed. Fixes a crash when talking with Mac dictation. The first screen now asks for the microphone up front.

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