FX Factory is a plugin host. It has a free "Community Library" where users upload scripts. One of the most famous scripts is called "Mask Tracker to Transform."
How to get it for free:
The benefit: Because FX Factory handles the code, this plugin works on Windows and Mac M1/M2 without crashing. The free community version allows tracking up to 5 layers before asking for a donation.
Limitation: You cannot save presets in the free tier, but you can use the effect in real-time. Mask To Transform Plugin For Adobe Premiere Pro Free
Q: Does After Effects have a built-in Mask to Transform feature?
A: Yes, but this article is for Premiere Pro users. If you own After Effects, use the "Tracking" panel. If not, use the plugins above.
Q: Will these free plugins work on Apple Silicon (M1/M2/M3)?
A: Mocha Free works natively. AutoPan Pro Legacy requires Rosetta 2. FX Factory works natively.
Q: Can I use Mask to Transform for Face Blurring?
A: Yes—but that is a "Track Mask" function, not Transform. For blurring, use Premiere's native Mask Tracking combined with Gaussian Blur. You do not need a plugin for that. FX Factory is a plugin host
Q: Is there a completely free, no-signup, no-watermark plugin?
A: Yes: The Mocha Free plugin from Boris FX is the most professional option with zero cost and zero watermarks on export.
Editors love the "Mask To Transform" plugin because it automatically scales, rotates, or repositions a clip based on a mask you draw. Unfortunately, the truly automated version is usually paid.
Regardless of which free plugin you choose (AutoPan, Mocha, or FX Factory), the workflow is generally the same. Here is your cheat sheet: The benefit: Because FX Factory handles the code,
If you absolutely cannot install third-party software, here is a 100% native, albeit slow, method to simulate the effect:
This takes 10 minutes per clip, but it costs $0.
Mask To Transform bridges the gap between masking and motion. This utility plugin instantly converts the movement of any mask path into clean Position or Anchor Point keyframes for your clip.
Think of it as "Baking" your mask’s movement into the clip’s transform properties. Now you can move your subject and its mask together, or use the mask’s path to drive camera shake, zooms, or object tracking.