3D file converters that run in your browser

Drop a file, get another format back. Conversion happens on your machine — nothing is uploaded to a server.

Mesh → Mesh

OBJ, STL, PLY, OFF and glTF/GLB, in any direction. Keeps normals, colour and texture coordinates wherever the target format can hold them.

Available

E57 → PLY

Convert ASTM E57 point clouds to binary PLY. Streams large scans with low memory use.

Available

CAD converters

CAD interchange tools without sending drawings to the cloud.

Planned

Why local?

Scan and CAD files are often confidential and huge. A server upload is slow, risky, and expensive. These tools decode and write files with the Web APIs already in your browser.

Size is not the limit

Nothing is ever fully loaded. Files are read through a sliding window and written out as they are decoded, so peak memory follows the batch size rather than the file size — a 900 MB mesh converts to a 2.3 GB STL in about a minute using a few hundred megabytes of memory. When a model is too large even to index in memory, vertices are staged on disk instead.