STL VIEWER
View and inspect your STL files online. STL (Stereolithography) is the standard format for 3D printing, containing triangulated surface geometry ready for fabrication.
STL Viewer
Click to upload or drag and drop
STL
Max size: 50MB
About STL Format
STL is the standard format for 3D printing. It describes only the surface geometry using triangular facets, without colors, textures, or other attributes.
3D printingRapid prototypingCAD/CAMManufacturing
Your files are processed entirely in your browser. Nothing is uploaded to our servers.
How to View STL Files
View Your Model
Inspect Model Details
Why Use Our STL Viewer?
Instant Preview
View your files in seconds with our optimized WebGL-based viewer. No waiting for server processing.
100% Private
Your files never leave your browser. All rendering happens locally on your device for complete privacy.
Free & Unlimited
View as many files as you need with no limits, no accounts, and no restrictions.
About STL Format
STL.stl
Stereolithography
STL is the standard format for 3D printing. It describes only the surface geometry using triangular facets, without colors, textures, or other attributes.
Supported Features:
GeometryMaterialsTexturesAnimations
Common Use Cases:
3D printingRapid prototypingCAD/CAMManufacturing
Other 3D Viewers
Convert STL Files
Need to convert your STL files to another format? Use our free converter.
GLBGLTF
GLB to GLTF
Convert GL Transmission Format Binary to GL Transmission Format
GLBOBJ
GLB to OBJ
Convert GL Transmission Format Binary to Wavefront OBJ
GLBSTL
GLB to STL
Convert GL Transmission Format Binary to Stereolithography
GLTFGLB
GLTF to GLB
Convert GL Transmission Format to GL Transmission Format Binary
Frequently Asked Questions
Yes, our viewer is completely free to use with no limits. No account or signup required.
No! All processing happens entirely in your browser using WebGL. Your files never leave your device, ensuring complete privacy and security.
You can view files up to 50MB in size. Larger files may require desktop software for viewing.
STL (Stereolithography) is the standard format for 3D printing. It describes only the surface geometry using triangular facets, without colors, textures, or other attributes.
Yes! Our STL viewer is perfect for inspecting 3D print files before sending them to your printer or slicing software. You can rotate and zoom to check the model from all angles.
