STL Converter

Save yourself from the hassle of spending countless hours trying to figure out how to convert multiple STL file into other formats with our fast and easy STL file converter.

STLConverter

How to Convert .stl Files in Bulk

1. Install reaConverter

Download reliable STL conversion software to convert multiple .stl files and folders in one go.

2. Select STL Files

Select STLs from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load STL files

3. Start Conversion

Click Convert to start the bulk conversion of all selected STL files. The process will begin right away.
reaConverter - Start STL conversion

Convert STL on your PC

For quick and effortless STL file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.

Do more with your files

Converting STL files for use in a larger project? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Image editing

User Reviews

Average User Rating:
Last updated on April 25, 2025
"Tried a few image tools before, but this one is by far the easiest. Drag, drop, convert — done in seconds. It saved me a ton of time when organizing my image folders."
Lisa K.
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Lisa K.
Happy User
"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
⭐⭐⭐⭐⭐
Paul Baker
Happy User
"Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!"
Richard E. Miller
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Richard E. Miller
Satisfied Customer
"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
⭐⭐⭐⭐⭐
Wei Chen
Happy User
"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."
Roger Cook
⭐⭐⭐⭐⭐
Roger Cook
Happy User
"Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines."
Rebecca Turner
⭐⭐⭐⭐⭐
Rebecca Turner
Marketing Agency CEO

STL files: Frequently Asked Questions

Can reaConverter open STL files?

reaConverter fully supports the STL file format – open, edit, and export STL files to any other popular file format with ease.

How do I change STL to another format?

reaConverter is a user-friendly tool for converting STL files. Once installed on your computer, it allows you to convert all your .stl files at once with just a few clicks. You can even convert stl images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert STL online?

If you only want to convert a few STL files, you are welcome to try our free online STL converter.

How can I turn STL files on my computer to another format?

The best way to convert STL files on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from STL.

How can I automate STL files conversion?

reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.

Can I convert STL files using scripts or the command-line interface?

reaConverter provides full access to all its features from the Windows command-line shell, including the command-line stl converter.

What else can I do with reaConverter?

Convert CAD formatsSet picture bit depthConvert DICOM imagesChange picture sizeConvert PDF

What formats can I convert a STL file to?
What types of files can I convert to STL format?

Discover more

Explore our efficient STL file converter that saves you time and effort by converting multiple .stl files into different formats.
reaConverter software