Free 3D resources

Free 3D Printing Models

Printable models in STL or 3MF. Licences on these sites are usually set per model, so check the one on the item you download.

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5 of 26 free 3D sources

  • NASA 3D Resources

    Partly checkedChecked 17 Sep 2026. Some checks could not be confirmed — see details.

    NASA's official collection of spacecraft, planetary and mission models, 3D-printable files and textures, mirrored on GitHub. Great for space-themed education, visualisation and printing.

    Commercial use
    Allowed
    Attribution
    Varies by item
    Account
    Not needed
    Licence
    NASA media usage guidelines (not copyrighted in the US)
    Visit siteDetails →

  • Sloyd

    VerifiedVerified 17 Sep 2026. Every check passed in the last 90 days.

    A gallery of roughly 700 free models generated with Sloyd's AI tool, grouped into collections like characters, props, animals and 3D-printing pieces. Good for quick prototyping, game blockouts and prints if you can credit the creator.

    Commercial use
    Allowed
    Attribution
    Required
    Account
    Not needed
    Licence
    CC BY 4.0
    Visit siteDetails →

  • CGTrader

    Partly checkedChecked 17 Sep 2026. Some checks could not be confirmed — see details.

    A large paid 3D model marketplace with a filterable free section, where each free model keeps whichever licence its seller picked. Handy for finding one-off props and objects, but check each model's licence label.

    Commercial use
    Varies by item
    Attribution
    Not confirmed
    Account
    Not confirmed
    Licence
    Seller-chosen (Royalty Free, Royalty Free No AI, or Editorial)
    Visit siteDetails →

  • Printables

    Partly checkedChecked 17 Sep 2026. Some checks could not be confirmed — see details.

    Prusa's 3D-printing model community, with a huge library of free designs (plus a paid store) and per-model licences shown on each design. Suits makers; filter by licence if you plan to sell prints.

    Commercial use
    Varies by item
    Attribution
    Varies by item
    Account
    Not confirmed
    Licence
    Per-model (Creative Commons, GPL, BSD, OCL, Standard Digital File, etc.)
    Visit siteDetails →

  • Thingiverse

    Partly checkedChecked 17 Sep 2026. Some checks could not be confirmed — see details.

    A long-running community hub of millions of user-uploaded 3D-printable designs. Great for makers, but each design carries its own licence, and many are non-commercial.

    Commercial use
    Varies by item
    Attribution
    Varies by item
    Account
    Not confirmed
    Licence
    Per-design Creative Commons or GPL
    Visit siteDetails →

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How we check

What “Verified” means

Every source here was checked against its own pages — its licence, terms and download pages — not copied from another list. Each fact links to the page that supports it. A source is marked Verified only when all of these were confirmed on its own pages in the last 90 days:

  • Site is up
  • Free resources actually exist
  • Licence identified
  • Commercial use checked
  • Attribution requirement checked
  • Sign-up requirement checked
  • Free download link found

“Free” covers very different deals — public domain, credit required, personal use only, a free tier with limits. We record which one each source offers, and where a licence changes from item to item we say so rather than guess. Those sources never match a licence filter.

We record what each source says about its own terms, with links to where it says it. That is not legal advice, and terms change: check the licence on the page you download from before you use an asset.