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For genuinely reusable images in 2026, begin with Openverse or Wikimedia Commons, then check specialist collections such as the Library of Congress, Smithsonian Open Access, NASA, The Met and Rijksmuseum. Pixabay, Pexels and Unsplash are convenient free-stock services, but their platform licenses are not the same as public-domain status.
Always open the individual asset record, read its rights statement and save that evidence before publishing. A website’s homepage or a search result is not enough to establish a license.
Public domain, CC0 and “free” are different
Public-domain status
A public-domain work is outside copyright restrictions in the relevant jurisdiction, usually because copyright expired or never applied. The Public Domain Mark identifies works believed to be free of known copyright restrictions; it is a status label, not a new license.
CC0
CC0 is a rights-holder dedication intended to waive copyright and related rights as far as the law allows. Creative Commons describes it this way: CC0 offers the strongest and most reliable way to place a work as fully as possible into the public domain across international legal systems.
Creative Commons also cautions that no legal tool can guarantee complete relinquishment of every copyright and database right in every jurisdiction.
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Platform licenses
Services such as Pixabay, Pexels and Unsplash generally offer broad reuse under their own terms. That can be generous without making every file public domain or CC0. The license attached to the particular file, plus restrictions in the service’s terms, controls your use.
16 dependable places to look
| Source | Best for | Rights signal | What to check before use |
|---|---|---|---|
| Openverse | One search across many sources | CC-licensed and public-domain results from underlying repositories | Open the original source record; Openverse is an aggregator, not the licensor. |
| Wikimedia Commons | Broad subjects, media and historical material | Per-file license or public-domain metadata | Read the file page, including attribution requirements and any country-specific notes. |
| Pixabay | Quick stock-style photos, illustrations and video | Pixabay platform license | Review the current license and its prohibited or restricted uses for that asset. |
| Pexels | Contemporary stock photos and video | Pexels license | Confirm the file remains covered by the Pexels terms and check model, trademark and editorial issues. |
| Unsplash | Contemporary photography | Unsplash license | Read the license and consider whether people, logos or locations create separate permissions. |
| Flickr Creative Commons | User-uploaded work with CC filters | Creative Commons terms selected by each uploader | Match your use to the exact CC variant; some variants require attribution or restrict commercial use or adaptations. |
| Europeana | European cultural-heritage material | Item-level rights labels | Follow the rights label on each record; the aggregator’s collection is not uniformly licensed. |
| Internet Archive | Historical scans, audio, video and books | Rights vary by item | Read the item’s rights and borrowing or access terms rather than assuming archive-wide permission. |
| Library of Congress | U.S. photographs, maps, documents and other collections | Item-level rights notes | Use the record’s rights statement and note any restrictions or third-party material. |
| British Library | Digitized manuscripts, books and historical images | Collection-specific reuse terms | Check the terms for the particular collection and file. |
| New York Public Library Digital Collections | Public-domain and licensed cultural collections | Rights information on each record | Verify the record before downloading; not every item has the same status. |
| NASA Image and Video Library | Space, science and agency imagery | NASA-specific usage guidance | Follow NASA usage and branding restrictions; check people, contractors and third-party content. |
| Smithsonian Open Access | Museum objects and collection imagery | Explicit open-access labels where applicable | Use only assets marked for open access and retain the supplied object information. |
| The Met Open Access | Artworks and collection images | Museum policy marking eligible works | Confirm the artwork and image are marked Open Access; other collection records may have different terms. |
| Rijksmuseum Rijksstudio | High-resolution Dutch art and historical collections | Rights information supplied by the museum | Follow the rights information for the selected object and download. |
| LibreShot or another clearly labeled CC0/public-domain aggregator | Fast stock-style searches | Aggregator’s stated CC0 or public-domain label | Verify provenance and the exact license on the original file page before relying on the label. |
Choose by project rather than by image count
When you need broad discovery
Use Openverse to search across multiple repositories, then evaluate the underlying source. Wikimedia Commons is useful when you want a large repository with visible, file-by-file licensing.
When historical or cultural context matters
Start with Europeana, the Internet Archive, the Library of Congress, the British Library or NYPL. Museum-specific searches at Smithsonian Open Access, The Met and Rijksmuseum can provide authoritative object data as well as images.
When you need contemporary stock quickly
Pixabay, Pexels and Unsplash are efficient starting points. Treat them as licensed stock platforms, not automatic public-domain repositories, and read their current terms before commercial publication.
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When NASA or other institutional imagery is relevant
NASA’s library is valuable for space and science visuals, but agency branding and third-party rights still require a separate check. Institutional ownership does not by itself answer every reuse question.
Six steps to verify an image before publishing
- Open the individual asset page. Do not rely on a homepage, thumbnail or search snippet.
- Copy the exact rights statement and license URL into your project record. Preserve the wording used by the repository.
- Record attribution details. Save the creator’s name, title, source and any required credit line. Provide attribution whenever the license requires it.
- Check extra rights. Look for recognizable people, trademarks, logos, sensitive locations and culturally sensitive materials that may require permissions beyond copyright.
- Match the planned use. Confirm that your commercial or editorial purpose, adaptations, territory and distribution fit the license.
- Preserve dated evidence. Save a screenshot or downloaded metadata record because platform policies and item pages can change.
Rights that a copyright label does not settle
- People: A public-domain photograph can still raise privacy, publicity or model-release concerns.
- Brands and products: Logos and trade dress may create trademark issues even when the photograph itself is reusable.
- Places and objects: Property, museum, location or access rules can impose conditions separate from copyright.
- Cultural materials: Indigenous, sacred or community-held materials may call for respectful or consent-based use beyond a bare legal license.
- Embedded works: A scan or photograph may include another artwork, document or recording with its own rights.
Keep a simple license record
For every published asset, store the file name, source, creator, asset-page address, exact rights statement, license version, download date, attribution text and notes about people, brands or other permissions. This makes later edits and takedown questions far easier to handle.
What the 16-source list cannot tell you
There is no consistent, current image-count figure published across all 16 services, so library size is not a reliable basis for comparison. Evaluate breadth, search and filtering, historical versus contemporary coverage, clarity of item-level rights metadata, attribution burden, commercial-use limits, download resolution and whether the service is a repository or an aggregator.
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