新一代 3D 创客工具与格式转换器
无需上传排队、100% 浏览器本地运算。支持 2D 图片转 3D 打印浮雕、透光画、立体二维码，以及 STL、OBJ、3MF、GLB、STEP 格式极速互转与实时渲染。
2D 图片转 3D STL (浮雕 / 透光画 / 印章)
图像转 3D 网格、透光画、模具与切片工具
Popular 3D Conversions & Tools
One-click fast access to our in-browser conversion and generation matrix.
你可以做什么
2D 图片转 3D 浮雕与透光画
将平面的 Logo、照片和简笔画一键转换为锋利的 3D 浮雕、透光浮雕（Lithophane）或烘焙饼干模具。
纯本地 3D & CAD 格式极速互转
STL、OBJ、PLY、3MF、STEP、GLB 格式在本地内存完成转换，无文件大小限制，商业图纸绝不外泄。
实时 3D 网页查看器与减面工具
免安装专业软件，在浏览器内 360° 查看模型、测量尺寸、统计面数，并可拖动滑块对模型进行减面压缩。
Why Choose Us over Cluttered Legacy Converters?
✨ FreeConvert3D Modern Standard
- ✓ 100% In-Browser & Private: Zero server upload queue. Your CAD models and photos never leave your device.
- ✓ No Cluttered Ads: Clean, distraction-free interface with instant preview and download.
- ✓ Watertight Mesh: Automatically seals geometries for error-free slicing in Bambu Studio, OrcaSlicer, and Cura.
⚠️ Legacy Converters (e.g. ImageToStl)
- × Forced file uploads to cloud servers with 10~30s waiting queues.
- × Screens filled with flashing ads, deceptive download buttons, and trackers.
- × Rough heightmap extrusion leading to jagged edges and non-manifold holes.
Frequently Asked Questions
Is this 3D file converter and 2D to STL tool really 100% free?
Yes, completely free. There are no daily credit limits, no subscription paywalls, and no account registration required. You can convert as many files as you need.
Are my confidential CAD drawings and 3D models safe?
Absolutely 100% safe. All conversions and mesh generations happen entirely inside your browser memory using WebAssembly and WebGL. Your files are never uploaded to our servers or stored on any cloud.
Can I directly 3D print the exported STL files in Bambu Studio or Cura?
Yes. Our engine automatically seals the mesh with a flat solid base and generates watertight (manifold) geometry, ensuring slicers like Bambu Studio, OrcaSlicer, PrusaSlicer, and Cura can slice them without holes or non-manifold errors.
What image and 3D file formats are currently supported?
For 2D-to-3D: PNG, JPG, JPEG, and WebP. For 3D format conversion and viewing: STL, OBJ, PLY, and GLTF/GLB.
How does Lithophane mode differ from Relief mode?
In Relief mode, lighter areas are raised higher to create a physical tactile 3D relief. In Lithophane mode, dark areas are extruded thicker and white areas thinner, so when backlit with a lamp, a detailed photo appears.