Convert PMX to STL Online — Free & Fast | AnyConv

PMX to STL Converter

Quickly convert multiple pmx files to stl — free & online.

Drag & drop your files here or click to upload

How to convert PMX to STL online

Follow these simple steps to convert pmx files to stl using AnyConv. It works on all devices — Windows, Mac, Linux, iPhone, Android.

Upload your PMX file

Drag & drop your file into the upload area. You can also click to select it manually. Max file size: 100 MB.

Start converting

Hit the “Convert” button to turn your PMX into STL. The process usually takes just a few seconds.

Download your STL

Once ready, download your converted file instantly. The download link is private and only works on your device.

What is a PMX file?

PMX is the modern version of the PMD format used in MikuMikuDance (MMD). It expands on PMD by allowing more complex morphs, better material settings, and support for non-Japanese characters in model names and metadata.

PMX is favored by MMD creators who want more control over model behavior and appearance. It is editable in tools like PMX Editor and remains central to MMD-based animation workflows.

How to open PMX files

PMX files are primarily opened using MikuMikuDance or PMX Editor. They offer more features than PMD and are preferred for advanced MMD animations.

Use AnyConv to convert PMX files into OBJ or other editable formats if you're moving them into other 3D pipelines.

Key facts about PMX

  • Full name: Polygon Model eXtended
  • Extension: .pmx
  • MIME type: application/octet-stream
  • Developed by: Yu Higuchi
  • Initial release: 2011

Useful links and resources

What is a STL file?

STL (Stereolithography) is one of the most common 3D file formats used for 3D printing. It describes the surface geometry of a 3D object without including color, texture, or other attributes.

STL files are supported by virtually all 3D printers and modeling software. They are lightweight and easy to process, making them the go-to choice for rapid prototyping and additive manufacturing.

How to open STL files

STL files can be opened in most 3D modeling and slicing programs such as Blender, Cura, TinkerCAD, and Fusion 360. They are essential for 3D printing workflows.

Use AnyConv to convert STL files to formats like OBJ or STEP for further editing or integration with CAD systems.

Key facts about STL

  • Full name: Stereolithography File
  • Extension: .stl
  • MIME type: model/stl
  • Developed by: 3D Systems
  • Initial release: 1987

Useful links and resources

Convert from PMX

Need to change your PMX files to a different format? Below are all the available tools to help you turn PMX into the format you need.

❓ Frequently Asked Questions

Answers to common questions about converting PMX to STL
  • Do I need to register to convert PMX files?
    Not at all! You can convert PMX to STL without signing up or installing anything.
  • Is it safe to convert PMX to STL on AnyConv?
    Absolutely. All PMX and STL files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
  • Will the quality change after converting PMX to STL?
    We do our best to preserve the original quality during PMX to STL conversion. The result is accurate and clean.
  • How long does it take to convert PMX to STL?
    Most conversions from PMX to STL take just a few seconds — even for larger files.
  • Can I upload more than one PMX file?
    Yes, batch conversion is supported. You can convert multiple PMX files to STL at once — fast and easy.
  • What browsers support PMX to STL conversion?
    All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting PMX to STL on any platform.