5 free open museum image archives: high resolution, mostly free for commercial use, and AI can search them for you

01First, understand two kinds of licence

Before you download, check the licence label on the image's page. Don't assume you can use it just because of the site's name.

1. CC0 / Public Domain: you can use it commercially and change it, with no credit required. Crediting is still better.
2. CC BY: you can use it commercially and change it, but you must credit the source institution.
3. Images with no licence label, or marked "for educational use only", can only be used as references, not in your work.

021. National Palace Museum Open Data (Taiwan)

The National Palace Museum's collection images are open for download, with no account needed. Patterns from paintings, textiles and porcelain make great references.

1. Open the Opendata page of the museum's collection search.
2. Pick "Painting" or "Textiles" as the category, and filter by dynasty to narrow it down.
3. Click into a work and download it directly, no login needed.
4. The site's open data statement uses CC BY 4.0 attribution: credit "National Palace Museum" when you use it.

• NPM collection search: Opendata — Download without applying
• CC BY 4.0 Attribution licence (Traditional Chinese)

032. ColBase (Japan's national museums)

ColBase is the combined collection database of Japan's National Institutes for Cultural Heritage. It holds the collections of the four national museums in Tokyo, Kyoto, Nara and Kyushu.

1. Search "引札" (hikifuda) to see old advertising flyers from the Meiji and Taisho periods. They're a great reference for vintage layouts.
2. You can also search "浮世絵" (ukiyo-e) or "染織" (textiles) for patterns.
3. Credit the source as the site's terms of use require. The format is "出典：ColBase" (Source: ColBase).

• ColBase: Integrated Collections Database of the National Museums — Available in Japanese, English and Chinese

043. Cooper Hewitt design museum (USA)

Cooper Hewitt is the Smithsonian's design museum. Its collection has lots of wallpaper, textiles and Japanese katagami stencils, so it's a good place to find patterns and textures. Its collection is now part of the Smithsonian's open access programme.

1. Go in through Smithsonian Open Access and search katagami or wallpaper.
2. Pick only works marked CC0. These can be used commercially.
3. Works without a CC0 mark are for viewing only, not for use in your work.

• Smithsonian Open Access — More than 5 million 2D and 3D digital items

054. The Met (USA)

Since 2017, The Metropolitan Museum of Art has released images of its public-domain works under CC0. More than 490,000 images can now be used freely, with no restrictions.

1. On the collection search page, tick "Open Access" to see only works you can use commercially.
2. If a work's page is marked "Public Domain", you can download the full-size image directly.
3. Works without this mark are still under copyright and are for reference only.

• The Met: Collection search — Tick Open Access
• The Met: About Open Access — CC0 licence

065. Public Domain Image Archive

A curated image library from The Public Domain Review: more than 10,000 plates that are out of copyright, with new ones added every week. It's faster than browsing museum sites directly, because someone has already picked the images for you.

1. Open the site and filter with Tags under Browse by.
2. For layout and decoration references, pick patterns or alphabets.
3. Each image's page lists the source institution and licence. Credit it as shown.

• Public Domain Image Archive

07Let AI find images for you

The Met has a public Collection API that needs no key, so you can ask ChatGPT or Claude to search it for you and list the image links.

Use the free Met API to find 20 public-domain ukiyo-e prints and give me the image links

For a more specific topic, write a fuller prompt:

Use The Metropolitan Museum of Art's Collection API (https://metmuseum.github.io/, no key needed) to search for the keyword "<topic>". Keep only works where isPublicDomain is true. Give me a table: title, artist, date, full-size image link (primaryImage), object page link. Up to 20 works.