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SPECIFICTION
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Convert3D vs Spin 3D

Convert3D

convert3d.org

Spin 3D

nchsoftware.com

Side by side

FigureConvert3DSpin 3D
Price from$74.92/moFree
Free planYesYes
Free trial——
Open source——
WebYesYes
WindowsYesYes
macOSYesYes
LinuxYes—
APIYes—
Plans published51
Spec score · 3D File Converter Software8.4 (#5)7.8 (#13)
Format supportThe website says it supports more than 1,000 possible format conversions, including USDZ and STEP.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.
PreviewThe converter previews models in 3D so users can rotate, zoom, and pan before exporting.Users can preview the original model and conversion output before converting.
PurposeConvert3D converts 3D models between a wide range of formats, including FBX and OBJ.Spin 3D converts 3D mesh files between formats for 3D printing, game modding, design, and animation workflows.
SupportThe maker lists [email protected] for contact and links to a Discord community.Spin 3D support includes conversion video tutorials, a help manual, a forum, and a technical support contact form.

Plans

Convert3D

  • Free APIFree
  • Starter$899 a year
  • Growth$1,799 a year
  • Scale$4,899 a year
  • Custom enterprisePriced on request

Convert3D pricing →

Spin 3D

  • Free versionFree

Spin 3D pricing →

In their own words

Convert3D

Convert3D converts 3D models between file formats, including FBX, OBJ, USDZ, and STEP; its website lists more than 1,000 possible conversions. The browser converter uses WebAssembly for local processing and says files do not leave the computer, though some files may be processed on Convert3D or partner servers, and API processing is server-side. Users can preview models in 3D and rotate, zoom, and pan before exporting. The browser viewer can display scene hierarchy, node properties, material details, wireframe view, and material maps. A compressor offers low, medium, and high presets, with optional geometry, quantization, and texture settings, and advertises compression up to 80%. Desktop apps are available for Mac, Windows, and Linux. Developers can use the REST API for batch conversion in applications, pipelines, and automation workflows. API models are encrypted in transit and at rest and automatically deleted after processing. The Free API plan costs nothing for 10 conversions. Paid plans cost $899 a year, $1,799 a year, or $4,899 a year.

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Spin 3D

Spin 3D converts 3D mesh files between formats for 3D printing, game modding, design, and animation. Its product page lists more than 45 supported formats, including STL, 3DS, 3DP, 3MF, OBJ, and PLY; listed outputs include OBJ, STL, PLY, 3DS, 3MF, and 3DP. Users can preview source models and conversion results, adjust default translation, rotation, and scale values, recalculate normals, and remove duplicate triangles and vertices. Multithreaded batch processing can convert hundreds or thousands of 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 its online converter. The free version is for non-commercial use only. Format support has qualifications: OBJ material files are not supported yet, and some formats are read-only or require an optional component. Converted models can be imported into DreamPlan Home Design Software. Support resources include tutorials, a manual, FAQs, a forum, and technical support contact.

Visit nchsoftware.com