Fast 3D

Free STL to OBJ Converter

Lightning-fast STL to OBJ conversion — 100% in your browser. Your files never leave your device. Free, no watermark, no sign-up.

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Drag and drop or click to upload. Files are processed locally in your browser.

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Supports GLB, GLTF, OBJ, STL, FBX, PLY

GLBGLTFOBJSTLFBXPLY

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Skip the search — generate a model from text or an image, then convert it to STL or any other format in one workflow.

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STL vs OBJ

See what transfers when converting between these two formats.

FeatureSTLOBJ
Geometry
Textures
Materials
Animation
Rigging

All features supported by STL are preserved in OBJ.

Other conversions from STL

GLB

STL → GLB

Binary glTF, the most common modern 3D format

GLTF

STL → GLTF

JSON-based glTF, human-readable

PLY

STL → PLY

Polygon File Format, common in 3D scanning

Other conversions to OBJ

GLB

GLB → OBJ

Binary glTF, the most common modern 3D format

GLTF

GLTF → OBJ

JSON-based glTF, human-readable

FBX

FBX → OBJ

Autodesk FBX, popular in animation pipelines (input only)

PLY

PLY → OBJ

Polygon File Format, common in 3D scanning

STL → OBJ

Frequently Asked Questions