3d

3D

Live app: 3d.puter.com

A Blender alternative that runs entirely in the browser: modeling, sculpting, UV editing, shader / geometry / compositor nodes, animation and rigging, physics, path-traced and real-time rendering, video editing, motion tracking, Grease Pencil and scripting, with nothing to install. It is written from scratch in TypeScript on top of three.js (WebGL2).

This project is independent: it is a clean-room implementation that contains no Blender source code, icons, themes or other assets, and it is not affiliated with or endorsed by the Blender Foundation. "Blender" is a trademark of the Blender Foundation.

Run locally

Prerequisites: Node.js 24 LTS and npm, and a browser with WebGL2 (any current Chrome, Edge, Firefox or Safari).

npm ci
npm run dev          # open the printed URL

?factory-startup in the URL starts from the default scene without restoring the autosaved session.

Build and test

npm run build        # type check + production build into dist/
npm run preview      # serve the production build
npm test             # unit tests (vitest)
npx playwright install chromium
npm run test:e2e     # browser tests (Playwright); E2E_BASE_URL=… reuses a running server
npm run check        # all of the above

What's included

Interface. Topbar with the default workspaces (Layout, Modeling, Sculpting, UV Editing, Texture Paint, Shading, Animation, Rendering, Compositing, Geometry Nodes, Scripting) and a "+" menu with 2D Animation, Motion Tracking and Video Editing templates. Areas can be split, joined and switched to any editor (Shift+F1…F12). Menus, pie menus, F3 search, redo panel (F9), tooltips, status bar and the default keymap (left-click select, numpad / emulated numpad navigation). Several scenes per file and view layers (per-layer collection flags, passes, AOVs, light groups); right-click menus on every property (keyframes, drivers, reset, copy data path, …), custom properties, presets for panels, operators and import/export options.

Editors. 3D Viewport, Outliner, Properties, Timeline, Dope Sheet, Graph Editor, Drivers, Nonlinear Animation, Shader Editor, Geometry Node Editor, Compositor, Spreadsheet, Image Editor, UV Editor, Video Sequencer, Movie Clip Editor, File Browser, Text Editor, Python Console, Info, Preferences.

Objects and modes. Meshes, curves (Bézier/NURBS/poly), text (Inter font), armatures, lattices, empties (including reference/background images), lights, cameras, Grease Pencil, volumes (OpenVDB import), point clouds, metaballs and hair curves. Object, Edit (mesh, curve, armature, lattice, text), Pose, Sculpt, Vertex/Weight/Texture Paint and Grease Pencil Draw/Edit/Sculpt modes.

Modeling. Selection tools (click, box, circle, lasso, loops/rings, linked, shortest path …), transforms with constraints, numeric input, proportional editing and element snapping (vertex, edge, edge center, face, volume, grid, increment), extrude, inset, bevel, loop cut and slide, knife, spin, bisect, rip, merge, dissolve, fill/bridge, subdivide, symmetrize, normals tools, UV unwrap and projections, and the modifier stack (Array, Bevel, Boolean, Build, Decimate, Edge Split, Geometry Nodes, Mask, Mirror, Remesh, Screw, Solidify, Subdivision Surface, Triangulate, Weld, Wireframe, Armature, Cast, Curve, Displace, Hook, Lattice, Shrinkwrap, Simple Deform, Smooth, Laplacian Smooth, Warp, Wave, Weighted Normal, Smooth by Angle, and physics modifiers).

Sculpt and paint. Around 20 sculpt brushes with symmetry, masking and voxel remesh; vertex, weight and texture painting; automatic armature weights.

Nodes. About 80 shader nodes compiled to GLSL (Principled BSDF and friends, textures, color and vector utilities), Geometry Nodes with fields, instances and a viewer, and a GPU compositor with a full compositing node set and backdrop.

Animation and rigging. Keyframes, keying sets, auto keying, F-curve modifiers, drivers, NLA, motion paths, Bake Action, armatures with IK and bone constraints, shape keys, object constraints.

Physics. Rigid bodies (Rapier), cloth, soft body, particles (emitter and hair), force fields, collision and a smoke/fire domain solver, all cached on the timeline.

Rendering. Solid / Material Preview / Rendered viewport shading, a progressive path tracer with denoising, volumes and subsurface scattering, light linking and texture baking, and a real-time raster engine (AO, bloom, soft shadows, motion blur), color management (Standard, AgX, Filmic, Khronos PBR Neutral), F12 stills and animation renders to PNG/JPEG/WebP sequences or WebM video, render passes, compositing and sequencer output, and line rendering (line sets and line styles) over final renders.

Video editing and tracking. Video Sequencer with scene, movie, image, sound, color, text, adjustment, meta and effect strips plus audio mixdown; Movie Clip Editor with 2D feature tracking, feature detection, 2D stabilization, camera solving with scene orientation, plane tracks and the Follow Track / Camera Solver / Object Solver constraints.

Scripting. A bpy-style API usable from JavaScript (offline) or Python (Pyodide, loaded on first use), Text Editor with run script, Python Console, script-registered operators and panels.

AI assistant. A sidebar (open by default; the topbar's Assistant button or Window › AI Assistant shows and hides it, and the choice is remembered) where you describe what to build or change. It runs on Puter AI: it reads the scene, writes and runs scripts against the bpy-style API (a failing script is rolled back), looks up the API, takes viewport screenshots to check its work, and reads attached reference images, PDFs and text files. Everything it changes for one message is a single undo step.

Files. Native .p3d project format with autosave/recovery; import of .blend files written by Blender 2.80–5.x; import/export of glTF/GLB, FBX, OBJ/MTL, STL, PLY and USD (USDA/USDC/USDZ); import of Collada and Alembic; Grease Pencil SVG/PDF export and SVG import; legacy .3d.json scenes from earlier versions of this app. File › Link / Append bring data in from other .p3d or .blend files, as read-only linked data (with library overrides) or as local copies.

Known limitations

• No EEVEE-specific effects. The path tracer renders up to 8 volumes at once (one medium at a time where they overlap) and random-walk subsurface scattering for up to 64 materials; the realtime engine has no subsurface scattering.
• Python scripting covers a documented subset of bpy; it needs network access once per session to download Pyodide.
• .blend import covers the active scene and common data (not volumes, point clouds or line rendering settings); unsupported data is reported, not lost silently. Export to .blend is not supported.
• See the module headers and the pull-request description for per-feature limitations.

Layout of the code

See ARCHITECTURE.md.

License and third-party software

See LICENSE and THIRD_PARTY_NOTICES.md. License texts of bundled dependencies are in public/licenses/.

License

This app, including all its contents, modules, and components, is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0-only). Third-party libraries included in this app may be subject to their own licenses.