Open STL file online

Fast, secure and free STL viewer Online


Select stl file   
Important: 150 MB maximum file size, all upload and processed files will be deleted automatically within 1 hours.

4.8 (592 Votes)


How to open STL online?

Step 1
Upload stl-file(s)
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Step 2
Choose "stl file"
Choose stl or any other format you need as a result (if applicable).
Step 3
Download/View your processed stl file
Let the file process and download/view the stl file.
** You can also open your processed stl file in our free online viewer by clicking "Open".


  • 1 ❓ How can I viewer STL 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 "viewer" button. It will now allow you to viewer your STL file.

  • 2 ⏱️ How long does it take to viewer STL file?

    This viewerer works fast. You can viewer STL file in a few seconds.

  • 3 🛡️ Is it safe to STL viewer using free file viewerer?

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

  • 4 💻 Can I viewer STL file on Mac OS, Android or Linux?

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

  • 5 🌐 What browser should I use to viewer STL?

    You can use any modern browser to viewer STL, for example, Google Chrome, Firefox, Opera, Safari.

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