STEP to STL Converter

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

How to convert STEP to STL?

Just three simple steps — no downloads, no hassle.
Click the “Choose files” button and upload your STEP 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: STEP to STL

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

About STEP

STEP is a standardized 3D CAD file format used to exchange product design data between different software systems. It supports precise geometry, materials, and structure, making it ideal for engineering and manufacturing. STEP files typically have the .step or .stp extension.

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 STEP to STL with MiConv?

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

No software needed

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

More STEP conversions you can try

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

STEP to STL Converter Quality Rating

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Rated 9.02/10 based on 92852 reviews
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