Ferrocast Install

Annotate photo on your Mac, offline

Annotate an image in Ferrocast with arrows, boxes, highlights, numbered labels, text, callouts and a magnifier on its own canvas. Saves a PNG copy.

Shortcut
⇧⌘A
Input formats
jpg png webp heic tiff
Annotate photo window in Ferrocast

How to use it

  1. Drag a file, or select it in the launcher.
  2. Press ⇧⌘A on the file result, or tap ⌘ while dragging.
  3. Choose Annotate photo. The result is saved beside the original.

Read the full guide, with limits

Install Ferrocast

brew tap drumst0ck/ferrocast
brew install drumst0ck/ferrocast/ferrocast
ln -sfn "$(brew --prefix)/opt/ferrocast/Ferrocast.app" \
  /Applications/Ferrocast.app
open /Applications/Ferrocast.app

Free, open source (MIT), Apple Silicon only. All file tools · All conversions