Ferrocast Install

Change video speed on your Mac, offline

Speed a video up or down in Ferrocast between 0.25x and 4x with presets and a calculated duration, keeping pitch. Requires ffmpeg.

Shortcut
⇧⌘L
Input formats
mp4 mov mkv
Change video speed window in Ferrocast

How to use it

  1. Drag a file, or select it in the launcher.
  2. Press ⇧⌘L on the file result, or tap ⌘ while dragging.
  3. Choose Change video speed. 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