No. 23 of 30 ·3D File Converter Software

Simpel3D

Web · paid plans from $5.75/mo

Freedom report

One barScore 5.2

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedThinly documented

Simpel3D is ranked #23 of 30 in 3D file converter software on Freedom251. It runs on Web. There is a free plan. Paid plans start at $5.75/mo.

Simpel3D plans and pricing

All plans

Free Free forever 3 conversions/day · STEP up to 10MB · STL, OBJ, 3MF output · personal use only simpel3d.com · 8 Oct 2026

Day Pass $1.99 once one-time · 24 hours Unlimited 24hrs · STEP up to 30MB · batch 3 files · commercial license · no subscription simpel3d.com · 8 Oct 2026

Standard $6.99/mo per month 15 conversions/day · STEP up to 30MB · batch 3 files · commercial license simpel3d.com · 8 Oct 2026

Pro $12.99/mo per month Unlimited · STEP up to 60MB · batch 5 files · commercial license · privacy certificate simpel3d.com · 8 Oct 2026

Standard Annual $69/yr $69/yr — save 2 months 15 conversions/day · STEP up to 30MB · batch 3 files · commercial license simpel3d.com · 8 Oct 2026

Pro Annual $99/yr $99/yr — save 2 months Unlimited · STEP up to 60MB · batch 5 files · commercial license · privacy certificate simpel3d.com · 8 Oct 2026

Compared on 3D file converter software

Free plan: Yes
Format scope: mixed
Batch conversion: Yes
Maximum file size: 0.03 GB
Supported platforms: Web

Best Simpel3D alternatives

See all 20

One bar HOOPS Exchange Paid plans No. 1—6.8 Two bars CAD Assistant Free tier No. 2Free6.7 Two bars Open Asset Import Library (Assimp) Free tier No. 3Free6.7 Two bars Convert3D Free tier No. 4$74.92/mo6.6 Two bars ODA File Converter Free tier No. 5Free6.6 Two bars Spin 3D Free tier No. 6Free6.6

The record

Purpose: Simpel3D converts 3D files including STEP, IGES, STL, OBJ, and 3MF into STL, OBJ, or 3MF output.
Local processing: The site says conversion runs locally in the browser using WebAssembly, and files are not uploaded to its servers.
Large assemblies: Large STEP assemblies can be split automatically into individual printable parts and downloaded as a ZIP.
Mesh health: After conversion, the tool reports watertight status, dimensions, triangle count, and volume.
Slicer compatibility: The site says its output is tested in Cura, PrusaSlicer, and Bambu Studio.
Format limit: Simpel3D does not support conversion back to STEP or IGES.
Privacy and data: The privacy policy says it collects no analytics and does not collect IP addresses; the daily conversion counter is stored in browser localStorage.
Payment and hosting: The privacy policy names Paddle for payment processing, Cloudflare Pages for hosting, and JSDelivr for delivery of the WebAssembly library.
Support: The privacy policy provides an email contact for support and says it will respond to rights requests within 30 days.
Audience: The site describes Simpel3D as made for makers and says the free tier is for personal use, while Standard and Pro include commercial use.
Price from: $5.75/mo

Where it ranks on Freedom251

Best 3D File Converter Software in 2026#23 of 30

Is Simpel3D yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote Simpel3D

Sources

simpel3d.com· checked 8 Oct 2026
simpel3d.com/privacy· checked 8 Oct 2026