Open STL 3D Models Online
View STL files online for free. Inspect 3D model files used for 3D printing, CAD, and prototyping directly in your browser.
Drop STL file here or click to browseChoose a STL file
Your file stays in your browser
Instant Preview
View files instantly in your browser
No Software Needed
Nothing to install
Secure
Files are processed securely
100% Free
Free to use
When to use the .STL viewer
Do more with your .STL file
Convert, share, or host your files online
What is a .STL file?
A .stl file is a Stereolithography 3D Model, usually created with Cura, PrusaSlicer, Bambu Studio.
With our free online .STL viewer, you can open and view these files directly in your browser without installing any software. To share a file, use a supported hosting format; if this format cannot be hosted directly, export it to PDF first, then create a shareable Linkyhost link.
Frequently asked questions
How do I open a .stl file online?
Upload your .stl file to our viewer and it will open instantly in your browser. No Cura, PrusaSlicer, Bambu Studio needed.
Can I view .stl files without Cura, PrusaSlicer, Bambu Studio?
Yes. Our online .STL viewer lets you open and view files without installing any software.
Is the .stl viewer free?
Yes, our .STL viewer is completely free to use.
Is my file secure?
Yes. Files are processed securely and not stored permanently. Your data remains private.