3D Model Converter is a web tool for viewing and converting mesh files in workflows involving CAD, modeling software, 3D printing and the web. It supports STL, OBJ, PLY, 3MF, FBX, GLB, glTF, STEP and IGES. STL, OBJ, PLY, GLB and glTF files are parsed in the browser without being sent to the server; STEP and IGES use a separate cloud route after the user starts an upload. The main local model file limit is 100 MB, and large dependency packages may encounter browser memory limits. OBJ and glTF workflows can also need related MTL, BIN or image files. After export, the tool checks whether the result can be parsed and contains renderable triangles. Its report compares available details such as dimensions, triangles, materials, textures, units and axis data. The free plan includes unlimited local workflows and five monthly cloud credits, with a 50 MB cloud-file limit. Pro costs 9.90 USD per month and adds 100 monthly cloud credits and batches of up to 20 files.

Who it is for

It suits people moving mesh files among CAD, modeling, printing and web workflows, especially when browser-local processing is useful. Users converting STEP or IGES should be prepared for the separate cloud upload route.

What is good

Supports nine listed mesh and CAD formats.
Several file types are processed locally in-browser.
Export validation checks parsing and renderable triangles.
Free plan includes unlimited browser-local workflows.
Pro supports batches of up to 20 files.

What to know first

Local model file limit is 100 MB.
Cloud files are limited to 50 MB on Free.
Large dependency packages may meet browser memory limits.
Conversion does not repair mesh geometry.

Verdict

3D Model Converter covers a broad set of formats and separates browser-local workflows from cloud conversion for STEP and IGES. Its checks assess export validity, but the tool does not fix geometry defects or add printable wall thickness.

3D Model Converter plans and pricing

All plans

Free Free Unlimited browser-local mesh workflows · 5 cloud credits per month · 24-hour cloud history · 50 MB per cloud file · Standard queue 3dconverter.org · 30 Sept 2026

Pro $9.90/mo $9.9/month 100 cloud credits per month · 30-day conversion history and downloads · Priority queue · Batches up to 20 files · 100 MB effective cloud file limit · Team workspaces not included 3dconverter.org · 30 Sept 2026

Compared on 3D file converter software

Free plan: Yes
Paid from: $9.90/mo
Format scope: mixed
Batch conversion: Yes
Maximum file size: 0.1 GB
Supported platforms: Web

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The record

Purpose

3D Converter provides browser-local mesh viewing and conversion for handoffs between modeling tools, 3D printers, and the web.

Supported formats

The site lists STL, OBJ, PLY, 3MF, FBX, GLB, glTF, STEP, and IGES as supported formats.

Local processing

STL, OBJ, PLY, GLB, and glTF routes parse selected files in the browser without sending those files to the server.

Cloud processing

STEP and IGES use a separate cloud conversion path after a verified user starts an upload.

File size limit

The homepage limits the main local model file to 100 MB; large dependency packages may encounter browser memory limits.

Validation

After export, the tool reopens the output and rejects files that cannot be parsed or contain no renderable triangles.

Quality report

The report compares dimensions, triangles, objects, materials, textures, units, and axis data when available.

Dependencies

OBJ and glTF workflows can require selecting referenced MTL, BIN, and image files together with the model.

Notable limitation

The site says conversion does not repair non-manifold geometry, fill holes, remove self-intersections, or create printable wall thickness.

Security and privacy

The privacy policy says the service implements appropriate security measures to protect personal information from unauthorized access, alteration, disclosure, or destruction.

Support

The site lists [email protected] and provides a contact form.

Intended users

The maker describes the product as serving practical workflows involving CAD, printing, modeling tools, and the web.

Price from

$9.90/mo