Purpose: MeshFormat converts 3D files in the browser, reading 20 formats and writing 12 across 229 conversion pairs.
Local processing: The conversion pipeline runs in a browser worker using WebAssembly geometry kernels.
Supported formats: The site lists formats including STL, OBJ, STEP, IGES, glTF, GLB, FBX, PLY, 3MF, 3DS, DAE, AMF, VRML, VTK, 3DM, BREP, OFF and USDZ as readable formats.
Conversion options: The converter offers scale, up-axis, triangle-budget and decimal-place settings, plus options to centre a model on the origin or merge it into one mesh.
Additional tools: The site also offers tools to compress models and view supported models with wireframe and model statistics.
Privacy: Models are processed in browser memory and are not transmitted to MeshFormat or third parties; the site says it has no upload endpoint or backend.
Tracking: The privacy page says MeshFormat uses no tracking cookies, advertising pixels or cross-site identifiers.
Technical foundations: MeshFormat names Open CASCADE, Assimp, three.js, glTF Transform and meshoptimizer among its open-source foundations.
Compatibility limits: MeshFormat says it does not read proprietary native formats such as DWG, SKP or SLDPRT, write binary FBX, or turn meshes into parametric CAD solids.
File-size limit: A converter page says practical file size is limited by available memory rather than an arbitrary cap.
Support and service commitment: The terms say the service is provided free of charge and as is, with no account, subscription or service-level commitment.
Intended users: The site describes use cases around moving 3D models between CAD, mesh, web, AR, real-time engine and 3D-printing workflows.
Price from: Free

Where it ranks on Freedom251

Best 3D File Converter Software in 2026#11 of 30

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Sources

meshformat.com/about· checked 7 Oct 2026
meshformat.com· checked 7 Oct 2026
meshformat.com/privacy· checked 7 Oct 2026
meshformat.com/brep-to-stp· checked 7 Oct 2026
meshformat.com/terms· checked 7 Oct 2026