What is a .AEPX file?
AEPX is the XML form of an After Effects project. Created and opened by Adobe After Effects.
- Did you know
- The XML project format behind .aepx arrived with After Effects CS4 in 2008, aimed at automation workflows where scripts edit project details without ever launching the application.
- AEPX is simply the XML-encoded form of an After Effects project, holding the same composition data as the binary AEP in readable text.
- After Effects stayed Mac-only for its first four years - the first Windows version, 3.1, did not ship until May 1997.
- What Analyser reads
- Identify and read video-editing project files: the After Effects XML project (AEPX); Wondershare Filmora (WFP, WSP); and CapCut drafts (draft_content.json) - canvas resolution, duration, tracks and material counts. After Effects (AEP, AET), Premiere Pro (PRPROJ, PREL), DaVinci Resolve (DRP, DRT) and VEGAS Pro (VEG, VF) projects now open in full viewers - see those entries.
- Depth of analysis
- .AEPX is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .AEPX file
- Drag a .AEPX file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
- Related formats
- .WFP · .WSP. See all supported file types.