Free Online 3D Model Viewer – STL, OBJ & 3MFView and inspect 3D models online for free with the ElectronicsDIY Online 3D Model Viewer. Open STL, OBJ, and 3MF files directly in your browser without installing CAD software. Whether you are working on 3D printing projects, mechanical parts, enclosures, or custom-designed components, this free online 3D viewer helps you examine your models quickly and easily.Rotate, zoom, and pan around your 3D models to inspect their shape and geometry from different angles. Use the measurement tool to check distances between points, explore sections with an interactive cutting plane, and view important mesh information such as model dimensions, vertex counts, and triangle counts. You can also switch between solid, wireframe, and edge display modes to examine model details.The viewer includes standard camera views, model-centering controls, and screenshot export for convenient visual inspection and documentation. It is useful for students, electronics hobbyists, engineers, makers, and 3D printing enthusiasts who need a quick way to view 3D model files. Your files stay in your browser. Model processing takes place locally on your device, and your uploaded files are not sent to the ElectronicsDIY server.How to use the 3D Model ViewerClick Open Model or drag and drop an STL, OBJ, or 3MF file into the viewer.Rotate, zoom, and pan to inspect the model.Use the measurement and section tools to examine geometry and dimensions.Open the inspection panel to view model information and mesh statistics.Capture a screenshot if you want to save a visual reference.Note: STL files generally do not contain reliable unit information, so their dimensions depend on the units assumed for the model. OBJ materials and textures, as well as some advanced 3MF features, may depend on file compatibility.
Features
STL, OBJ & 3MF File Support
Open popular 3D model formats directly in your browser. View STL, OBJ, and 3MF files without installing dedicated CAD software.
Interactive 3D Viewing
Rotate, zoom, and pan around your model to inspect its shape, geometry, and details from different angles. Use standard views to quickly examine each side.
Measure Distances
Measure the distance between two points on your 3D model. View the total distance and X, Y, and Z coordinate differences for geometry inspection.
Section and Cut Plane
Inspect internal geometry using an adjustable section plane. Move the plane along the X, Y, or Z axis to reveal different portions of your model.
Mesh Information
View model dimensions, bounding box, vertex count, triangle count, and other available mesh statistics to better understand your 3D geometry.
Solid, Wireframe & Edge Modes
Solid, Wireframe & Edge Modes
Switch between solid shading, wireframe, and edge views to inspect surfaces and visible geometry details.
Model Dimensions & Views
Model Dimensions & Views
Check the model's bounding box dimensions and use front, back, left, right, top, bottom, and isometric camera views for convenient inspection.
Screenshot Export
Screenshot Export
Capture the current 3D viewport as a PNG image for project documentation, design reviews, and sharing visual references.
Private Browser-Based Processing
Private Browser-Based Processing
View your models directly in your browser without uploading them to our server. No separate CAD application installation is required.
