UnMult is a free plugin that removes black from lighting effects to create an alpha channel. It works in After Effects, Premiere Pro, and Media Encoder for the 2021‑2025 releases of each application.
Developed by iBelieveInSwordfish.
About UnMult
UnMult, developed by iBelieveInSwordfish, removes black from lighting effects to generate an alpha channel. The plugin is listed as free and operates in Adobe After Effects, Premiere Pro, and Media Encoder. It supports the 2021, 2022, 2023, 2024, and 2025 versions of each host application. Version 1.2 was released on August 27 2025 and is the first release posted to the aescripts catalog. A demo video is available on YouTube, and licensing details are provided on the developer’s page. Compatibility beyond the listed releases is not documented in this catalog.
Features
- Removes black from a lighting effect to add an alpha channel
- Runs in After Effects, Media Encoder and Premiere Pro
- Supports the 2025, 2024, 2023, 2022 and 2021 releases of each host
- Listed as free in this catalog
- Demo video available
Best for
Adobe editors and compositors who need to add an alpha channel to a lighting effect by removing black, using After Effects, Premiere Pro, or Media Encoder.
Frequently asked questions
Which After Effects versions does UnMult support?
UnMult supports After Effects versions 2025, 2024, 2023, 2022 and 2021; the same version range applies to Adobe Media Encoder and Premiere Pro.
Does UnMult run in Premiere Pro and Media Encoder too?
Yes. UnMult runs in both Premiere Pro and Media Encoder, supporting the 2021‑2025 releases of each application.
Is UnMult free to download?
The catalog lists UnMult as free. Verify the current licensing on the developer’s aescripts page before downloading.
What changed in UnMult version 1.2?
Version 1.2, released on August 27 2025, is the initial aescripts release of UnMult; there is no earlier aescripts version for direct comparison.
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