Simplify 3D models in the browser.

Upload STEP, analyze assemblies, and export simplified models. No install. Up to 20x faster than manual workflows.

Try Slimo3D free See pricing

No install. Works in the browser.

3D CAD model: wireframe to solid — simplify and analyze in the browser

Why Slimo3D

Import STEP and IGES in one click

Upload your CAD file in the browser. Slimo3D analyzes assemblies, parts, and geometry so you can simplify without opening heavy desktop software.

AABB, OBB, and more

Get axis-aligned (AABB) and oriented (OBB) bounding boxes instantly. Preview and select which parts to replace—all in the browser.

MBC and MCC for best fit (Preview free · Export Pro)

Use Minimum Bounding Cylinder (MBC) and Minimum Convex Cylinder (MCC) for tighter, more accurate replacements. Preview them free in the viewer; export on Pro.

Export clean STEP

Export a simplified STEP with selected parts replaced by boxes or cylinders. Fewer parts, smaller files, same structure. Export is available on Entry and Pro (Free is preview-only).

Works in the browser

No desktop install, no IT tickets. Open the link, upload, and go. Saves time and works on any machine.

Folders and storage

Save models to your library and manage exports. Pro adds folders to organize your library, more storage, and longer retention.

How it works

1

Upload

Upload your STEP or IGES file in the browser. No install required.

2

Analyze

Slimo3D analyzes assemblies, parts, and geometry. Get AABB, OBB, and more.

3

Simplify

Select parts to replace with boxes or cylinders. Preview in real time.

4

Export

Export a simplified STEP. Fewer parts, smaller files, same structure.

Choose your plan

Start for free. No credit card required.

Free

0 €

Preview everything in the viewer — no export or storage

  • 25 MB max file size
  • 50 parts per model
  • Preview MBC/MCC/AABB/OBB + Min-Volume (MV)
  • No export
  • No save / no library storage
  • Community support
Get started free
Popular

Entry

49 €/mo

Billed annually (588 €/yr) or 65 €/mo month-to-month

  • 25 MB max file size
  • 50 parts per model
  • 10 models/month upload
  • 5 exports per day
  • 0.5 GB storage
  • 2 saved configurations per model
  • AABB and OBB export (no MBC/MCC, no MV)
  • €40 add-on: +5 uploads & unlimited exports (unlimited per billing period)
  • 30 days retention
  • Email support (48–72h)

Pro

199 €/mo

Billed annually (2388 €/yr) or 249 €/mo month-to-month

  • 50 MB file size
  • 500 parts per model
  • 50 models/month upload
  • 25 exports per day
  • 2 GB storage
  • 5 saved configurations per model
  • MBC, MCC, AABB, OBB export + Min-Volume (MV)
  • Folders to organize your library
  • €40 add-on: +6 uploads & unlimited exports (unlimited per billing period)
  • 90 days retention
  • Priority support (same-day)

Free previews everything in the viewer but can't export or save. Entry exports AABB/OBB and stores your models. Pro adds MBC/MCC export, Min-Volume (MV), folders, larger files, more exports per day, and same-day support. Add-on packs available for extra models.
Prices in EUR excluding VAT where applicable.

Ready to simplify your CAD models?

Choose your plan

Simplify 3D models in minutes instead of hours, up to 20x faster than manual workflows.