Alternatives to Line of Action

24 tools like Line of Action, ranked by topic, tags and pricing. All of them open without an account.

No sign-up — opens and works · Opens in mainland China · Freemium · Probed with a real request; the date only advances when the site opens

Zygote Body Open
A free layered 3D human anatomy model you can peel apart
3D生物人体Verified just nowzygotebody.com
Agisoft Metashape Tutorials Open
Official photogrammetry tutorials: building 3D models from photos, control points and DEMs.
3DphotogrammetrytutorialsVerified just nowagisoft.com
MolView Open
Draw molecules online and get a rotatable 3D model instantly
3D化学分子Verified just nowmolview.org
3D Slash Open
Voxel-style modeling by adding and carving cubes; the web app works without login and exports STL.
3Dvoxel3d-modelingVerified just now3dslash.net
CGTrader Open
A big 3D model marketplace you can preview before filtering
3D3D模型市场Verified just nowcgtrader.com
GrabCAD Open
An engineering 3D model community with viewable CAD models
3DCAD工程模型grabcad.com
Sketchfab Open
The largest 3D model community, searchable and previewable online
3D3D模型社区Verified just nowsketchfab.com
Bake3D STL Checker Open
Local STL inspection for watertightness, flipped normals and non-manifold edges, with one-click repair.
3DstlcheckerVerified just nowbake3d.ai
Bambu Lab Wiki Open
Bambu Lab's official wiki with per-printer settings, maintenance and fault-handling guides.
3DbambusettingsVerified just nowwiki.bambulab.com
Ellis Print Tuning Guide Open
Deep print-tuning guide for Klipper and Voron style printers: pressure advance, extrusion, troubleshooting.
3DtuningklipperVerified just nowellis3dp.com
Fast 3D Open
No login; free daily quota; text/image to 3D in about 10s, exporting GLB, OBJ, FBX or STL.
3Dtext-to-3dimage-to-3dVerified just nowfast3d.org
HDRMAPS Open
Real-captured HDRI library; 200+ freebies downloadable directly.
3Dhdri免费Verified just nowhdrmaps.com
ImageToSTL Open
Image-to-STL, mesh repair, model compression and voxelizing in one free toolbox.
3Dimage-to-stlrepairVerified just nowimagetostl.com
Klipper Documentation Open
Official Klipper firmware docs for printer settings, G-code and resonance compensation, with Chinese translation.
3DfirmwareklipperVerified just nowklipper3d.org
MatterHackers Troubleshooting Guide Open
Symptom-indexed FDM troubleshooting manual covering bed adhesion, clogs, stringing and layer shifts.
3DtroubleshootingfdmVerified just nowmatterhackers.com
Mecabricks Open
Build and render LEGO-style brick models in the browser; workshop opens without login.
3DlegobricksVerified just nowmecabricks.com
MeshInspector Open
Mesh inspection, repair and measurement plus free STL repair and STEP/G-code viewers.
3DmeshrepairVerified just nowmeshinspector.com
NASA 3D Resources Open
NASA's official free 3D models of spacecraft and planets
3DNASA3D模型Verified just nownasa3d.arc.nasa.gov
NASA Eyes Open
A NASA 3D tour of the solar system that flies you to any planet
3D天文太阳系Verified just noweyes.nasa.gov
NIH 3D Open
US NIH official 3D biomedical model library; free downloads without login.
3D3d模型医学Verified just now3d.nih.gov
OBJ Viewer Open
Online OBJ viewer with material and texture support; basics are free without login.
3DobjviewerVerified just nowobjviewer.com
Open Heritage 3D Open
Open 3D scan datasets of at-risk heritage sites; free downloads.
3D3d扫描遗产Verified just nowopenheritage3d.org
PlayCanvas Open
A browser 3D game engine that runs community projects online
3D3D引擎游戏开发Verified just nowplaycanvas.com
3dicons Open
Free 3D icon packs with PNG and source file downloads
3D3D图标素材Verified just now3dicons.co

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