Spin 3D

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Score7.3

Rank#4 of 30

PriceFree

Free planYes

Runs onmacOS, Web, Windows

Summary

Spin 3D converts 3D mesh files between formats for uses such as 3D printing, game modding, design, and animation. Its product page lists more than 45 supported formats, including OBJ, STL, FBX, BLEND, and GLB as input formats, with OBJ, STL, PLY, 3DS, 3MF, and 3DP among the listed outputs. Users can preview source models and conversion results before converting, adjust default translation, rotation, and scale values, recalculate normals, and remove duplicate triangles or vertices. Multithreaded batch processing supports converting many files at once. Downloads are offered for Windows 7 to 11 and macOS 10.9 or later. The maker directs Mac, Linux, and Chrome OS users to an online converter. The free version is for non-commercial use only. Format support has qualifications: OBJ material files are not yet supported, and some formats are read-only or require an optional component. The product page also says converted models can be imported into DreamPlan Home Design Software. Support materials include video tutorials, a help manual, FAQs, a forum, and a technical support contact.

Who it is for

Spin 3D may suit people converting mesh models for printing, modding, design, or animation. It is also aimed at users who need batch conversion or model previews.

What is good

Lists more than 45 supported formats.
Previews source models and conversion results.
Supports multithreaded batch processing.
Can recalculate normals and remove duplicate mesh elements.

What to know first

Free version is limited to non-commercial use.
OBJ material files are not supported yet.
Some formats are read-only or need an optional component.

Verdict

Spin 3D offers broad mesh-format conversion, preview, and batch processing. Check its format qualifications and non-commercial restriction before choosing the free version.

Spin 3D plans and pricing

All plans

Free version Free Non-commercial use only nchsoftware.com · 4 Oct 2026

Compared on 3D file converter software

Free plan: Yesnchsoftware.com
Format scope: meshnchsoftware.com
Batch conversion: Yesnchsoftware.com
Supported platforms: Web, Windows, macOSnchsoftware.com

Facts

Purpose: Spin 3D converts 3D mesh files between formats for uses including 3D printing, game modding, design, and animation.nchsoftware.com · 3 Oct 2026
Free use: A free version is available for non-commercial use.nchsoftware.com · 3 Oct 2026
Formats: The product page lists more than 45 supported formats, including STL, 3DS, 3DP, 3MF, OBJ, and PLY.nchsoftware.com · 3 Oct 2026
Output formats: The formats page lists OBJ, STL, PLY, 3DS, 3MF, and 3DP as output formats.nchsoftware.com · 3 Oct 2026
Preview: Users can preview source models and conversion results before converting.nchsoftware.com · 3 Oct 2026
Mesh correction: Top features include recalculating normals and removing duplicate triangles and vertices.nchsoftware.com · 3 Oct 2026
Offsets: The product page says users can offset default translation, rotation, and scale values.nchsoftware.com · 3 Oct 2026
Integrations: The product page says converted 3D models can be imported into DreamPlan Home Design Software.nchsoftware.com · 3 Oct 2026
Platform support: Spin 3D downloads are offered for Windows and Mac; the page lists Windows 7 to 11 and macOS 10.9 or above.nchsoftware.com · 3 Oct 2026
Online converter: The product page directs Mac, Linux, and Chrome OS users to its online converter, which offers 3D file conversion.nchsoftware.com · 3 Oct 2026
Format limitation: The formats page says OBJ material files are not yet supported, and identifies some formats as read-only or requiring an optional component.nchsoftware.com · 3 Oct 2026
Support: NCH lists video tutorials, a help manual, FAQs, a forum, and a technical support contact for Spin 3D.nchsoftware.com · 3 Oct 2026
Privacy and security: NCH's privacy statement says it does not store credit card information and that its server uses SSL to encrypt personal information in transit.nchsoftware.com · 3 Oct 2026
Format support: The product page lists 45+ supported formats and says it can convert from formats including OBJ, STL, FBX, BLEND, and GLB to OBJ, STL, PLY, 3DS, 3MF, or 3DP.nchsoftware.com · 4 Oct 2026
Platforms: The download page lists Windows and Mac OS X downloads; system requirements include Windows 7 to 11 and macOS 10.5 or above.nchsoftware.com · 4 Oct 2026
Online alternative: The product page directs Mac, Linux, and Chrome OS users to its online converter.nchsoftware.com · 4 Oct 2026
Free-use restriction: The maker describes the free version as available for non-commercial use only.nchsoftware.com · 4 Oct 2026
Security and privacy: NCH says it does not store credit card information and that its server uses SSL to encrypt personal information in transit.nchsoftware.com · 4 Oct 2026
Maker background: NCH Software says its software development team has released more than 80 applications since 1993.nchsoftware.com · 4 Oct 2026