最先端の3Dツール＆ファイル変換をストレスフリーで
2D画像を3Dプリント可能なSTLファイルに変換、CAD＆3Dモデル（3MF、STEP、OBJ、GLB）の相互変換、3D QRコード生成をブラウザ内で完全無料で実現。
2D画像から3D STL (レリーフ / リトファン)
画像から3Dメッシュ、リトファン、クッキー型作成
Popular 3D Conversions & Tools
One-click fast access to our in-browser conversion and generation matrix.
できること
2D画像から3D STL＆リトフェン作成
ロゴ、イラスト、写真を高精細な3Dレリーフ、透光画リトフェン、クッキー型カッターに変換。
高速 3D＆CAD フォーマット変換
STL、OBJ、PLY、3MF、STEP、GLBをお使いのデバイス上で瞬時に変換。アップロード待機時間ゼロ。
リアルタイム 3D Webビューアー＆測定
スライサー（Bambu StudioやCura）に取り込む前に、三角形面数、ミリメートル単位の寸法、ワイヤーフレームを快適に確認。
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.