STL to STEP Converter

Quickly convert multiple stl files to step - free & online.

Drag & drop your files here or click to upload

How to convert STL to STEP online

Follow these simple steps to convert STL files to STEP using AnyConv. It works on all devices - Windows, Mac, Linux, iPhone, Android.

Upload your STL 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 STL into STEP. The process usually takes just a few seconds.

Download your STEP

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

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 and edited in most 3D modeling and slicing programs such as Blender, Cura, TinkerCAD, or Fusion 360. They represent the geometry of 3D objects using triangles and are essential for prototyping and 3D printing workflows.

Use AnyConv to convert STL files to formats like OBJ or STEP for further editing, or to generate GCODE directly for 3D printing. It’s a fast and convenient way to prepare your models online without installing extra software.

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

What is a STEP file?

STEP (Standard for the Exchange of Product model data) is a widely adopted ISO standard (ISO 10303) for exchanging 3D CAD data between different software systems. It stores precise geometric and product structure information.

STEP files are ideal for sharing designs in engineering, manufacturing, and prototyping. They are compatible with most major CAD programs and ensure consistent model quality across platforms.

How to open STEP files

STEP files are supported by almost every CAD program, including SolidWorks, CATIA, Fusion 360, FreeCAD, and more. They are ideal for interoperability between platforms.

Use AnyConv to convert STEP files into STL, IGES, or other formats needed for 3D printing or further design.

Key facts about STEP

  • Full name: Standard for the Exchange of Product Model Data
  • Extension: .step
  • MIME type: application/step
  • Developed by: ISO
  • Initial release: 1994

Useful links and resources

Convert from STL

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

Convert to STEP

Want to get a file in STEP format? Choose the original format you’re starting with - AnyConv can quickly convert dozens of file types into STEP.

❓ Frequently Asked Questions

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

🗨️ What Users Say About AnyConv

Real feedback from people using our STL to STEP converter

Files convert largely correctly- putting the Anyconv... on the front of everything is a nuisance- it cost ya two stars. Otherwise this lets me deal with re-work on 3D print files as needed.

– Madscientist_42

So pleased with the conversion of STL (from Tinkercad) to STEP (for KiCAD). I had created a 3M Textool ZIF 3D model for my PCB design because none was available.

– TexasNerd

Awesome conversion. Fast and easy. Thank you so much, and thank you for accommodating my ad blocker. This site is the best!

– Bob

STL to STEP - User Rating
3.99 (220 votes)
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