Open3D: STL & 3D Model Viewer

Free GLB FBX STL OBJ Viewer

Free · Designed for iPad. Not verified for macOS.

Now with grid distance labels, in-line measurement, and zero ads in Settings. Open3D opens GLB, FBX, STL, OBJ, PLY, 3MF without uploads or accounts. Open3D Viewer is a fast, free 3D model viewer for STL, GLB, OBJ, USDZ, PLY, 3MF and FBX files. Open a 3D file, view it instantly, and see it in AR. No account, no sign-up, no cloud upload. Your files never leave your phone. Whether you're a 3D-printing hobbyist checking an STL before you slice it, or a 3D artist previewing a GLB export, Open3D Viewer opens it in seconds, without the paywalls and login screens other 3D viewers force on you. SUPPORTED 3D FILE FORMATS GLB, GLTF, STL, OBJ, USDZ, PLY, 3MF, FBX A 3D VIEWER THAT DOES THE BASICS RIGHT - Open files from your file manager, email, downloads, or any "Open with" menu - Smooth orbit, pan and zoom touch controls - Render modes: solid, wireframe, X-ray, textured - Backgrounds: studio, sunset, dark, white, HDRI - View 3D models in AR, placed in your real room (where supported) - Play built-in animations - Capture a screenshot or a rotating GIF and save to Photos - Full model specs: triangle count, vertices, materials, textures, bounding box MEASURE AND INSPECT - Tap two points on the model for a real-world distance, shown right on the line - Ground grid with distance labels in mm, cm, or meters along every edge - Cross-section / clipping plane to slice through any axis - Switch between metric and imperial units BUILT FOR 3D PRINTING - Print-readiness check: manifold / watertight, overhangs, wall thickness - Bed-fit check for popular printers (Bambu A1, Prusa MK4, Ender 3, X1C) - Rough weight, filament length and cost estimates - Convert and export between GLB and STL ALSO ON WEB AND WINDOWS The same engine runs everywhere — open3d.app in any browser, and on the Microsoft Store as a native Windows app with file associations. Pick up your 3D files anywhere. NO ACCOUNT. NO CLOUD. NO NONSENSE. - No sign-up, ever - 100% on-device, works offline (ads need a connection) - We never read, scan, or upload your files - We don't track which files you open Open3D Viewer is free, supported by ads: a small banner while you browse and an occasional full-screen ad. No subscription, no in-app purchases. The STL viewer and GLB viewer that makers and 3D artists actually want: clean, fast, and local. Measurements and print-readiness figures are convenient estimates, not a replacement for a slicer or proper measuring tools. See the in-app Disclaimer. Privacy policy: https://open3d.app/privacy.html

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What's new in 1.0.7 • Grid distance labels — see real-world dimensions along the ground grid in mm, cm, or meters • In-line measurement pill — the distance tag now floats next to the measurement line, easier to read • Ad-free upgrade removed — Open3D is fully free, simpler, no purchase decisions • Better banner-ad reliability on iOS 14+ • Faster file open — the dock auto-collapses when you select Measure or Cross-section so the model is unobstructed • Esc clears and restarts measurement (desktop) • Capture sheet simplified to a single "Save" action — PNG and GIF land in Pictures / Photos directly

Version 1.0.7

The developer, Rajesh Konatala, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Location
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Rajesh Konatala
Size
  • 42 MB
Category
  • Graphics & Design
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © Open3D
  • Developer Website
  • Privacy Policy

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