by aescripts + aeplugins·Workflow
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Magnum earns its place in the toolfarm library for automating edit detection with a detection engine that works across footage types and options to trim clips, export thumbnails, and customize naming.
Magnum is an After Effects plugin that automatically detects edits in footage. Its detection engine works with all footage types and is described as now over 2x faster. A search range feature lets you specify how many frames to search across for changes to compensate for dissolves, while a minimum scene length setting helps avoid detecting cuts in quick pans or strobing footage.
The visual change threshold is straightforward to set, and average scene color detection is available as a method, with the option to use the first frame of the previous edit as the cut reference. Once cuts are found, Magnum can trim the resulting clips and export thumbnails with optional spreadsheet data. Naming of the output is highly customizable.
The 3.x line brought a refactored UI aimed at easier use, along with a detection engine that works without adjustments in most cases. Magnum is compatible with After Effects from CC 2015 through 2024, and a demo video is available.
aescripts + aeplugins Magnum is best for after Effects editors who need to automatically detect and split edits in footage.
aescripts + aeplugins Magnum is completely free to download and use.
Magnum lists compatibility with After Effects 2024, 2023, 2022, 2021, 2020, CC 2019, CC 2018, CC 2017, CC 2015.3, and CC 2015. That range covers both recent releases and older Creative Cloud versions, so most current After Effects installs fall within it. The compatibility list also serves as the requirements list here, so if your version appears in that lineup, Magnum is expected to run. For the latest confirmed support details, check the developer's page before installing.
Magnum includes a search range feature that lets you tell it how many frames to search across for changes, which compensates for dissolves. It pairs with a minimum scene length setting that helps avoid detecting cuts in quick pans or strobing footage. Together these controls affect how the detection engine reads gradual changes rather than hard cuts. The visual change threshold is also adjustable, so you can dial in results for a given clip rather than relying on a single fixed sensitivity.
Magnum offers average scene color detection as a method for finding cuts, with the option to use the first frame of the previous edit as the reference for comparison. This sits alongside the visual change threshold as a detection approach and lives within the refactored UI introduced in the 3.x line. Beyond detection itself, Magnum can trim the resulting clips, export thumbnails with optional spreadsheet data, and apply highly customizable naming to the output, so you can shape both how cuts are found and how they are delivered.
Magnum is listed as free in this catalog. Licensing can change over time, and the developer has previously added support for floating licenses, so check the developer's page for current licensing details before you rely on it. Whatever the terms, its core function stays the same: Magnum automatically detects edits in footage, can trim the resulting clips, exports thumbnails with optional spreadsheet data, and applies highly customizable naming to the output using its detection engine.
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