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Open STL online

100% Free stl file Viewer online tools. Free Online stl viewer

Drag & Drop STL file or Browse


Drop file here. 150 MB maximum file size.



No sign-up required. Your files are deleted automatically after 24 hours.


Open STL File

What did you think of your recent STL Viewer/Editor experience?

 4.7 (389 Votes)

Our free stl viewer online tools does not required any registrations and installations on your system, 100% free and online stereolithography file (.stl) viewer tool. Open from any device with a modern browser like Chrome, Opera and Firefox.

Best & secure online stl viewer is custom developed tool by Filproinfo.com, all files processing perform on our own dedicated cloud servers under dynamic file system that automatically remove all processed files from our cloud servers after 1 to 24 hours.

Free Online STL Tools & Apps

Access powerful and secure free online STL tools to convert, view, edit, merge, split, and compare STL files — all without installing any software. Our tools support the .STL (Stereolithography File) file extension and run smoothly in any modern browser.

Select a tool below to explore features and manage your STL files directly from your device with ease.

Related STL File Extensions & Tools

STL default file extension is .STL and other similer related extensions and their tools are:

FAQ

  • ❓ How can I View STL (stereolithography file)?

    First, you need to add a file for Viewer: drag & drop your STL file or click inside the white area for choose a file. Then click the "View" button. It will now allow you to View your STL file.

  • ⏱️ How long does it take to View STL?

    This Viewer works fast. You can View STL in a few seconds.

  • 🛡️ Is it safe to View STL using free Viewer?

    Of course! The download link of STL files will be available instantly after Viewing. We delete uploaded files after 24 hours and the download links will stop working after this time period. No one has access to your files. File Viewing (including stereolithography file .stl) is absolutely safe.

  • 💻 Can I View STL on Mac OS, Android or Linux?

    Yes, you can use free Viewer app on any operating system that has a web browser. Our STL Viewer works online and does not require any software installation.

  • 🌐 What browser should I use to View STL?

    You can use any modern browser to View STL, for example, Google Chrome, Firefox, Opera, Safari.
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This tool and page updated at: 12-Apr-2025




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