Free, Fast & Secure 3D STL Model Viewer in Your Browser
Drag your .stl file anywhere onto the canvas, or select files via the Open button.
Rotate 360Β°, pan, zoom, inspect mesh polygons, wireframe outlines, and measure dimensions.
Adjust background color, edge crease angles, surface shading tones, or convert and export formats.
Online STL Viewer delivers a complete, professional suite of interactive 3D tools directly in your browser. Effortlessly control camera angles, slice geometries, measure dimensions, and customize visual appearances:
Full 360Β° Orbit rotation, smooth panning, and stepless zoom. Snap instantly to Front, Back, Top, Bottom, Left, Right, or Isometric views, or click Auto-Fit to center the model.
Slice through your 3D models interactively along the X, Y, and Z axes to inspect internal cavities, wall thicknesses, and hidden structural details.
Measure exact distances between vertices, calculate 3D bounding box dimensions (X, Y, Z), surface area, volume, and triangle polygon counts.
Overlay polygon wireframes, customize edge outline colors, adjust feature crease angle thresholds, and inspect face orientations and normals.
Smoothly explode multi-body mesh assemblies using interactive sliders to analyze internal component placement and part relationships.
Customize viewport background colors, apply custom surface fill tones, adjust ambient lighting & directional shadows, or switch between Light and Dark themes.
All 3D mesh parsing and WebGL rendering take place locally in your browser memory. Your 3D models are never uploaded to any remote server.
Easily convert and export your loaded STL 3D models into other popular 3D formats (such as OBJ, PLY, OFF) or save modified mesh geometries.
Generate direct shareable URLs for remote models or create clean HTML <iframe> embed codes to display 3D models on your own site.
Seamlessly drag and drop single .stl files, entire folders, or compressed .zip archives directly into the viewer window.