Convert STL to DAE - Free Online Converter
Drop a .stl file below and download it as .dae (COLLADA) in seconds. The conversion runs entirely in your browser - no upload, no signup, no watermark. Brings print files into SketchUp and Second Life.
Updated July 2026
Done in seconds
Your STL converts to DAE locally in your browser - no upload queue, no waiting.
Private by design
Your file never leaves your device. Nothing is uploaded, nothing is stored.
Free, no strings
No signup, no watermark, no file limit - convert as many files as you need.
How to convert stl to dae
Drop your STL file
Drag the .stl file into the converter above or click to browse. No account and no upload - the file stays on your device.
Conversion runs in your browser
The model is parsed and rewritten locally, in seconds for typical files. Geometry is carried over 1:1 - no remeshing, no quality loss.
Download the DAE
The .dae download starts from the same spot. Convert as many files as you like - there is no limit or watermark.
STL and DAE, explained
What is STL?
STL is the oldest and most universal 3D printing format. It describes a model as a plain list of triangles - nothing else. No colors, no materials, no units, no object names. That simplicity is exactly why every slicer, CAD tool, and print service on earth accepts it.
An STL file stores each triangle as three corner points plus a facet normal, either as compact binary (the common case) or human-readable ASCII. Because the format carries no unit information, almost every tool assumes millimeters. When a file needs to work absolutely anywhere, STL is still the safe answer.
- Developed by
- 3D Systems (1987)
- Structure
- Binary or ASCII list of raw triangles
- Used by
- Every slicer, CAD package, mesh-repair tool, and 3D-printing marketplace
What is DAE?
COLLADA (.dae) is an XML-based interchange format that predates glTF. It can carry full scenes with materials, rigs, and animations, and remains common in SketchUp exports, older asset marketplaces, and legacy game pipelines.
As an XML format, .dae files are verbose and slow to parse, and tool support has been fading in favor of glTF/GLB and FBX. It survives on two ecosystems: SketchUp imports COLLADA natively (most other mesh formats need Pro or plugins), and Second Life accepts mesh uploads only as .dae - so files move both ways, legacy assets out and fresh conversions in.
- Developed by
- Khronos Group (originally Sony) (2004)
- Structure
- XML scene description
- Used by
- SketchUp, older game pipelines, Second Life, legacy asset stores
What survives the stl to dae conversion
Format conversion is honest work: some data has nowhere to go in the target format. Here is exactly what carries over.
Triangle geometry
Every triangle carries over exactly - no remeshing or decimation.
Smooth shading
STL stores flat facets; vertex normals are computed during conversion so the DAE shades smoothly where the geometry allows.
Model scale
Coordinates copy 1:1 - a millimeter-modeled part arrives at the same numbers in the COLLADA scene.
UV coordinates
STL has no UVs, so the DAE has none - unwrap in the target tool before texturing.
Colors & materials
STL stores no appearance data; the DAE gets a neutral material.
When should you convert STL to DAE?
Convert to DAE to reuse print files in COLLADA-only tools: placing a printable part in a SketchUp scene, or uploading a print design to Second Life.
For printing, keep the STL - slicers don't read COLLADA. This is the display/reuse branch of the workflow.
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STL to DAE - frequently asked questions
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