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UE Viewer

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What UE Viewer is

UE Viewer is a program for viewing and extracting resources from games built with Unreal Engine. It can load packages from more than 300 games across Unreal Engine generations, and its supported file types include UPK, XXX, UKX, UMAP, PAK, OBB, PSK, PSA, PSKX, MD5MESH, MD5ANIM, glTF, TGA, DDS and MAT. It displays skeletal, vertex and static meshes. For skeletal meshes, it can show the skeleton hierarchy and how vertices bind to bones; supported materials can also be viewed with their internal structure. Export options include meshes and animations in formats used by 3D modeling software and Unreal Engine, textures as TGA or DDS, plus sounds, ScaleForm and FaceFX. Command-line options support viewing and exporting by paths, game tags and resource types. The maker offers Windows and Linux downloads, and the project README describes initial macOS support as a command-line exporter without visualization or multithreading. Linux use is also command-line only. UE Viewer is free and open source, with source code on GitHub; the repository states an MIT license. System requirements include an SSE2-capable CPU and an OpenGL 1.1 graphics card, with OpenGL 2.0 recommended. Some material types are unsupported, and additive animations do not work.

Who it suits

UE Viewer suits people who need to inspect or extract assets from Unreal Engine games and work with the listed mesh, texture, animation or archive formats. It is also relevant to users who can work through a command line, particularly on Linux or with the macOS exporter.

What it does well

  • Loads packages from more than 300 Unreal Engine games.
  • Displays skeletal, vertex and static meshes.
  • Exports meshes, animations, textures, sounds, ScaleForm and FaceFX.
  • Supports command-line viewing and exporting.
  • Free and open source, with source code on GitHub.

What to know first

  • The Linux version has no graphical interface.
  • macOS support is a command-line exporter without visualization or multithreading.
  • Some material types are unsupported.
  • Additive animations do not work.

Limits

Some material types are unsupported, and additive animations do not work. The Linux version has no GUI; the described macOS support is command-line only, with visualization and multithreading disabled.

Getting started

  1. Open the UE Viewer project website.
  2. Choose a Win32 or Linux download, or use the macOS command-line exporter described in the project README.
  3. Check that your system has an SSE2-capable CPU and OpenGL 1.1 graphics, with OpenGL 2.0 recommended.
  4. Use command-line options to set paths, game tags and resource types when viewing or exporting.

Verdict

Choose UE Viewer if you need to view or extract resources from supported Unreal Engine games, especially meshes, animations and textures. Look elsewhere if your work depends on unsupported material types, additive animations, games using other engines or a graphical Linux interface.

Questions

How much does UE Viewer cost?

It is free, and the project describes it as open source.

Which platforms does it support?

The maker provides Win32 and Linux downloads. The project README describes initial macOS support as a command-line exporter without visualization or multithreading.

What can UE Viewer export?

It exports meshes and animations in formats supported by 3D modeling software and Unreal Engine, textures as TGA or DDS, and sounds, ScaleForm and FaceFX.

Which games can it load?

It loads packages from more than 300 games across Unreal Engine generations. It focuses on Unreal Engine games and does not aim to support games using other engines.

Is UE Viewer open source?

The source code is available on GitHub. The repository states that UE Viewer is licensed under the MIT License.

Facts from UE Viewer's own pages

Command line
The program supports command-line viewing and exporting, with options for paths, game tags, and resource types. · gildor.org, 9 Oct 2026
Downloads
The maker provides Win32 and Linux downloads; the listed versions were updated in 2023 and 2022, respectively. · gildor.org, 9 Oct 2026
Export formats
It exports meshes and animations to formats supported by 3D modeling software and Unreal Engine, and textures to TGA or DDS. · gildor.org, 9 Oct 2026
Export formats and assets
It exports meshes and animations into formats supported by 3D modeling software and Unreal Engine, textures as TGA or DDS, and sounds, ScaleForm, and FaceFX. · gildor.org, 9 Oct 2026
Founded
2007 · gildor.org, 28 Sept 2026
Game coverage
It loads packages from more than 300 games based on Unreal Engine generations. · gildor.org, 9 Oct 2026
Game support
The maker says it can load packages from more than 300 games across Unreal Engine generations. · gildor.org, 9 Oct 2026
Integrations
Exported formats are intended for 3D modeling software and Unreal Engine; the maker also documents ActorX Importer scripts for 3ds Max among its tools. · gildor.org, 9 Oct 2026
License
The GitHub repository states that UE Viewer is licensed under the MIT License. · github.com, 9 Oct 2026
Linux interface
The maker says the Linux version has no GUI and must be started from the command line. · gildor.org, 9 Oct 2026
Linux limitation
The Linux version has no GUI and must be started from the command line. · gildor.org, 9 Oct 2026
macOS support
The project README describes initial macOS support as a command-line exporter, with visualization and multithreading disabled. · github.com, 9 Oct 2026
Materials
It can display supported material types and their internal structure; some material types are unsupported. · gildor.org, 9 Oct 2026
Mesh details
For skeletal meshes, it can show the skeleton hierarchy and how vertices bind to bones. · gildor.org, 9 Oct 2026
Mesh viewing
It displays skeletal meshes with animations, vertex meshes, and static meshes. · gildor.org, 9 Oct 2026
Notable limitation
Additive animations do not work. · gildor.org, 9 Oct 2026
Operating systems
The maker lists Windows and Linux system requirements and provides downloads for Win32 and Linux. · gildor.org, 9 Oct 2026
Other exports
It can export sounds, ScaleForm, and FaceFX. · gildor.org, 9 Oct 2026
Other limitations
Some material types are unsupported, and additive animations do not work. · gildor.org, 9 Oct 2026
Purpose
UE Viewer is a program for viewing and extracting resources from games made with Unreal Engine. · gildor.org, 9 Oct 2026
Scope
UE Viewer focuses on Unreal Engine games and does not aim to support games using other engines. · gildor.org, 9 Oct 2026
Security and compliance
The project page and linked repository provide no security or compliance claims. · gildor.org, 9 Oct 2026
Source and license
The source code is available on GitHub, and the maker says its license has not been determined. · gildor.org, 9 Oct 2026
Support
The maker points users to its FAQ, forum, and tutorial videos, and says it may sometimes be unable to work on UE Viewer beyond small stability fixes. · gildor.org, 9 Oct 2026

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