Start from the asset problem
Choose a converter, optimizer, engine-preparation, or preview workflow based on the issue in the current asset.
Engine matrix ยท Unreal
Free Unreal Engine asset optimizer for 3D models.
Prepare 3D models for Unreal-oriented workflows with scale review, material checks, file-size cleanup, and prototype import assumptions.
Unreal EngineFBXGLBScaleMaterialsTexturesImport prepPrototype
Prepare the asset, then validate the Unreal handoff.
Start with the format or import issue, then continue through preview, editing, optimization, conversion, and playable prototype checks.
Start from the exact need
Converter, compressor, engine optimizer, previewer, inspector, or platform-specific asset preparation.
Check asset quality
Review scale, dimensions, geometry weight, material count, texture assumptions, and file size.
Move toward game use
Optimize, export, generate missing variants, or create a playable scene around the prepared asset.
Choose the workflow that matches your asset.
Continue in the 3D editor
Preview the asset, correct visible issues, optimize or convert it, then test it in a playable prototype when useful.
Use AI only when helpful
Generation is positioned as a helper for missing variants, matching props, or scene completion after asset prep.
Prepare for the target format and engine
Use format-specific and engine-specific checks so the exported asset has clear handoff notes and known limitations.
From asset cleanup to a playable workflow.
Continue beyond a single conversion: inspect the result, optimize it, prepare the export, and use it in a playable workflow when appropriate.
Create playable sceneSafe promise boundary.
Use prepare, inspect, optimize, convert, preview, and prototype-ready. Do not claim guaranteed production-ready engine import unless verified end to end.
Related 3D asset workflows.
FAQ
When should I use this workflow?
Use it when a model needs format conversion, compression, inspection, or Unreal-specific preparation before you commit to engine import.
Is this only a file converter?
No. The stronger SEELE flow is convert or inspect first, then optimize, edit, generate missing assets, and place the result into a playable prototype.
Can this guarantee production-ready output?
No. The safe promise is prepare, preview, optimize, and prototype-ready unless a full verified engine import path is implemented.