3MF to STL Converter

Convert your 3MF files to STL in seconds — free and online.
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Select or drag & drop files to begin.

How to convert 3MF to STL?

Just three simple steps — no downloads, no hassle.
Click the “Choose files” button and upload your 3MF file.

You can drag and drop it too — we’re flexible!

Choose “STL” as the output format, then click “Convert”.

We’ll take care of the rest — it only takes a few seconds.

All done! Your file is now in STL format.

Just download it and enjoy. Easy, right?

At a glance: 3MF to STL

🔁 Conversion: 3MF to STL ⏱ Average conversion time: 20 seconds 💳 Cost: Free 📂 Category: 3D ✳️ Extensions: .3mf → .stl 📏 Max file size: 75 MB 👩‍💻 Works on: Windows, Linux, macOS, iOS, Android

About 3MF

3MF (3D Manufacturing Format) is a modern file format developed by the 3MF Consortium for 3D printing. It stores 3D models, textures, colors, and printing information in a compact, open-standard format that solves many limitations of older 3D file types like STL. 3MF is supported by major 3D printing software and hardware.

About STL

STL is one of the most widely used formats in 3D printing. It represents the surface geometry of a 3D object using a mesh of triangles. STL files do not store color or material data but are ideal for rapid prototyping and additive manufacturing.

Why Convert 3MF to STL with MiConv?

Because it's quick, easy, and made for people like you.

No software needed

Convert your .3mf files to .stl right in your browser — no downloads, no installs. Everything happens securely in the cloud.

Your files stay private

We never store your files permanently. Only you can access them, and they’re automatically deleted from our servers within 2 hours.

Fast, free, and effortless

Turn your 3MF files into STL in just a couple of clicks. No registration, no limits — and it’s 100% free.

More 3MF conversions you can try

Explore other formats you can turn your 3MF files into — it's easy!

3MF to STL Converter Quality Rating

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Rated 9.18/10 based on 216560 reviews
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