Library of Congress Web Archive review
A free, searchable archive for research—not a tool for submitting your own captures.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
For researchers exploring preserved websites, the Library of Congress Web Archive offers curated collections organized around subjects and events, including government, elections, news, organizations, and culture. Visitors can browse collections and search descriptive records, including by URL. It is a public research resource, rather than a self-service product for capturing websites of your choice.
The archive is free and available on the web, with access to Library of Congress loc.gov APIs. Preserved sites are selected and crawled by Library subject experts; collections can include HTML, images, PDF documents, audio, and video. Archives are stored in WARC format and, for some older collections, ARC format. Descriptive records and thumbnails help identify archived items. These features make the archive useful for finding and consulting material selected for preservation, rather than managing a personal or organizational capture workflow.
Access depends on permissions: some material is available only on-site, and permissions affect off-site display. Crawlers may also miss content or functionality, so a preserved capture may not fully represent a site's original experience. Choose this archive when curated Library collections and research access are the goal. Organizations that need to submit their own captures or control a web preservation workflow should look for a different kind of tool.
Library of Congress Web Archive pros and cons
- Where it wins
- Browse thematic and event-based collections selected by Library subject experts
- Search descriptive records, including by URL
- Access WARC and older ARC archives through loc.gov and its APIs
- Where it doesn't
- Does not offer user-submitted website capture
- Some archived material is restricted to on-site use
- Crawlers may capture content or functionality incompletely
Library of Congress Web Archive fact sheet, pricing and score →
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update