3D Model Viewer & Analyzer
View, inspect and analyze your 3D models online for free.
Upload your 3D file to preview its geometry, dimensions, volume, printability and more — directly in your browser.
Complete the check below before uploading your 3D file.
Free • No account required
STL · OBJ · GLB · GLTF · 3MF
Maximum file size: 200 MB · 200 MB per file
Your model is analyzed in your browser. Preview data is deleted when you leave this page or analyze another model. Estimate requests process the file in memory and do not keep a server copy after the response. If you continue to an exact quote/order, that file follows the normal order retention (deleted 30 days after order completion). Maximum upload size: 200 MB.
What is a 3D model viewer?
A 3D model viewer lets you open a digital part in your browser, rotate it, and inspect its shape without installing CAD software. GuidaPrinto3D’s viewer also measures the bounding box and volume so you can check whether a part is practical to print.
What 3D file formats can I view?
This tool currently opens STL · OBJ · GLB · GLTF · 3MF files up to 200 MB. Prefer a single self-contained file (GLB is usually easier than a GLTF with external resources). Quote and order matching on GuidaPrinto3D use STL; other formats are converted for the quote step.
How to view a 3D model online
Drop your file on this page. The model is loaded in your browser with rotate, zoom and pan controls. Use Fit model if the part looks too small or too large in the viewport.
How to check the dimensions of a 3D model
After the mesh loads, the analysis panel shows X, Y and Z of the bounding box. Switch units between millimetres, centimetres and inches. Values come from the mesh geometry, not from a screenshot.
How to check if a 3D model can be printed
Compare the part size with a typical FDM or resin build volume. If it does not fit the selected printer, a larger machine on GuidaPrinto3D may still be able to print it — request an exact quote to match Markers by capacity.
How much does it cost to 3D print a model?
Price depends on volume, material and the platform’s printing model. This page can show an estimate from the same engine as the homepage quote. For a firm offer, get an exact quote on GuidaPrinto3D.