v0.145.4Internal beta docs
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Beta documentation · eXLib v0.145.4. Public release is pending.

Install & First Launch

eXLib is a CEP (Common Extensibility Platform) extension for After Effects. Installing it is a one-time step; opening it afterward is a menu click every session.

Installing the extension

Once installed, eXLib appears in After Effects' Window → Extensions menu.

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If your build was delivered as a signed extension package, install it the way your team distributes CEP extensions — for example, via a .zxp installer, or by placing the extension in the CEP extensions folder. After installing, restart After Effects so it picks up the new extension.

Opening the panel

  1. Launch After Effects.
  2. Open Window → Extensions → eXLib.
  3. The panel opens.

Docking it where it helps

Dock the panel wherever suits your workflow — many users park it beside the Timeline so they can watch their selection and their code at the same time.

The panel works docked narrow as a side column, or wide as a bottom drawer.

Next: install the native companion

The panel isn't fully set up yet. eXLib's launch gate checks for a required native companion, and the install isn't finished without it — see The Native Companion for why it exists and how to install it.