STL File Viewer
View your STL (Stereolithography) files for free. Examine 3D printer-ready models in your browser.
About STL Format:
STL format is the most commonly used file format in 3D printing. It represents a mesh structure made of triangular surfaces.
What is an STL File?
STL (Stereolithography) is the most commonly used file format in 3D printing technology. Developed in the 1980s, this format stores geometric information of three-dimensional objects using triangular surfaces (mesh).
STL files represent the outer surface of an object with thousands of small triangles. Each triangle contains the coordinates of three corner points (vertices) and the surface normal. This simple but effective structure allows 3D printers to create objects layer by layer.
RobogenX3D Viewer allows you to view your STL files in high quality in your browser. You can examine your models in detail with features such as color changing, scaling, and wireframe viewing.
How to View STL Files?
1. Upload Your STL File
Click the "Upload 3D File" button and select your STL file from your computer. Your files are not uploaded to servers, they are processed in your browser.
2. Examine the Model
Rotate with your mouse, zoom in and view your model from all angles. You can change color and scale settings.
3. Take Screenshot
Save your model's image in PNG format. You can get high-quality images.
STL File Use Cases
3D Printing
STL format is the standard file format used in 3D printers. You can check your models by viewing them before printing.
Prototyping
In industrial design and engineering projects, prototype models are stored and shared in STL format.
Education
Students and educators share 3D models in STL format to support visual learning.
Archiving
STL format is suitable for long-term archiving of 3D models. Thanks to its simple structure, it can be read in the future as well.
Frequently Asked Questions About STL Files
What is an STL file?
STL (Stereolithography) is the standard file format used in 3D printers. It represents a mesh structure made of triangular surfaces.
How to open an STL file?
You can open STL files with RobogenX3D Viewer in your browser. No installation required, just upload the file.
How large can an STL file be?
STL files can range from a few KB to several GB depending on the complexity of the model. RobogenX3D Viewer can also process large files.
Does an STL file contain color information?
Standard STL format does not contain color information, only geometry information. However, you can change colors while viewing in RobogenX3D Viewer.