CAD Viewer Editor vs Open3D

CAD Viewer Editor is a fast, privacy-first DWG & DXF viewer and 2D editor for iPhone, iPad, and Mac. Open AutoCAD-compatible drawings from email, AirDrop, the Files app, iCloud, Dropbox, or Google Drive — and work on them entirely offline. No account, no ads, no uploads. CAD Viewer Editor renders large drawings smoothly on Apple silicon, with crisp lines, accurate colors, faithful layer rendering, and proper SHX / TTF / Big Font text. KEY FEATURES Open DWG & DXF drawings • DWG R14 through R2018 — every mainstream release • DXF ASCII read & write — round-trip to AutoCAD, BricsCAD, ZWCAD, GstarCAD, DraftSight • Multi-document tabs — switch between drawings instantly • Drag & drop files onto the canvas (iPad / Mac) • Open from Files, Mail, Safari, AirDrop, Share Sheet Smooth viewing • Pinch to zoom, two-finger pan, double-tap to fit • Configurable grid, axes, and background • Layer panel: show, hide, isolate, lock • Block (INSERT) browser — drill into nested blocks • Object properties: color, layer, linetype, line weight, geometry 2D drafting & editing tools • Draw lines, polylines, circles, arcs, rectangles, ellipses, splines, text • Move, copy, rotate, scale, mirror, offset, trim, extend • Grip-edit selected objects with direct manipulation • Snap to grid; smart selection (window, crossing, all) • Multi-level undo & redo Export & share • Export to PDF — single-page or multi-page, custom size • Export to PNG raster at any resolution • Export back to DXF for round-tripping to desktop CAD • Export tables to CSV • System Share Sheet — Mail, Messages, AirDrop Designed for privacy • Fully offline — no internet required to open or edit • Zero account, zero sign-up, zero ads • Your drawings never leave the device unless YOU share them • No telemetry by default; opt-in crash reports only iPad & Apple Pencil ready • Layouts optimized for iPhone, iPad, and macOS • Apple Pencil support for precise selection and markup • Stage Manager and multitasking on iPad • Trackpad, mouse, keyboard shortcut support on Mac 57 languages English, 简体中文, 繁體中文, 日本語, 한국어, Español, Français, Deutsch, Português, Italiano, Русский, العربية, Türkçe, Tiếng Việt, ไทย, हिन्दी, and more. WHO IT'S FOR • Architects and structural engineers on site • Mechanical, electrical, plumbing engineers reviewing shop drawings • Civil, road, bridge and survey engineers • Interior designers reviewing floor plans • Project managers, contractors, foremen • Real-estate agents reviewing blueprints • CAD students learning AutoCAD-compatible workflows COMPATIBILITY CAD Viewer Editor reads and writes DWG / DXF files produced by AutoCAD, BricsCAD, ZWCAD, GstarCAD, DraftSight, LibreCAD, QCAD, and other CAD applications. Not affiliated with or endorsed by Autodesk, Inc. FEEDBACK We read every email. Tap "Send Feedback" in the app, or write to support@iothub.cloud — feature requests welcome. Give it a try — no account, no commitment. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Open3D Viewer is the fastest free 3D model viewer for STL, GLB, OBJ, FBX, STEP, DXF, USDZ, PLY, 3MF, GLTF, IGES, DAE and 3DS files. Open any 3D file in seconds, view it in AR with Apple Quick Look, and check it for 3D printing — no account, no sign-up, no cloud upload. Your files never leave your iPhone or iPad. Whether you're a 3D-printing hobbyist checking an STL before slicing, a 3D artist previewing a GLB or FBX, or a CAD user opening a STEP or DXF, Open3D Viewer opens it instantly — without the paywalls and login screens other 3D viewers force on you. SUPPORTED 3D FILE FORMATS • Mesh: STL, GLB, GLTF, OBJ, PLY, 3MF, FBX, DAE, 3DS, USDZ • CAD: STEP / STP, IGES / IGS, DXF Export & convert Turn OBJ, PLY, 3MF, FBX, DAE, 3DS and more into STL for 3D printing or GLB for sharing. Files save straight to your Downloads folder — no extra apps, no online converter, everything happens on-device. A 3D VIEWER THAT DOES THE BASICS RIGHT • Open files from Files, email, downloads, or any "Open with" menu • Smooth orbit, pan and zoom touch controls • Render modes: solid, wireframe, X-ray, textured, matte • Wireframe overlay — see the geometry on top of the rendered surface • Preset camera views (front, side, top, perspective) • Light and dark themes • 5 background colours + 6 HDRI lighting environments (studio, sunset, dawn, dusk, dark, white) • Play built-in animations • View 3D models in AR via Apple Quick Look (USDZ) • Capture a screenshot or a rotating GIF and share it • Recent files with auto-generated thumbnails • Full model specs: triangle count, vertices, materials, textures, bounding box BUILT FOR 3D PRINTING • Print-readiness check: manifold / watertight detection, overhangs, wall thickness • Bed-fit check for popular printers (Bambu A1, Prusa MK4, Ender 3, Bambu X1C) • Rough weight, filament length and cost estimates • Measure distances on the model • Cross-section / clipping plane to inspect interiors • Scale and resize tool • Convert and export between GLB and STL LOCALIZED The interface automatically follows your device language. Currently available in English, German, Spanish, French, Portuguese, Hindi, Japanese, and Chinese. NO ACCOUNT. NO CLOUD. NO NONSENSE. • No sign-up, ever • 100% on-device. Works offline. • We never read, scan, or upload your files • We don't track which files you open The STL viewer and GLB viewer that makers, 3D artists and engineers actually want: clean, fast, and local. Measurements and print-readiness figures are estimates, not a replacement for a slicer or proper measuring tools. See the in-app Disclaimer. Open3D Viewer is an independent app and is not affiliated with the Open3D open-source library at open3d.org. All trademarks belong to their respective owners. Privacy policy: https://open3d.app/privacy.html