Head-to-head · Web Archiving Software
Library of Congress Web Archive vs UK Government Web Archive
Library of Congress Web Archive leads on 0 checks, UK Government Web Archive on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Free planboth
Library of Congress Web Archive and UK Government Web Archive score identically on our rubric (7.9 out of 10) for web archiving software; Library of Congress Web Archive sits at #7 and UK Government Web Archive at #8 in our editorial ranking, so the choice comes down to fit.
Library of Congress Web Archive is the better fit for readers accessing Library of Congress collections. UK Government Web Archive is the better fit for researching archived UK government websites.
- Library of Congress Web Archive fits best
Readers accessing Library of Congress collections
- UK Government Web Archive fits best
Researching archived UK government websites
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Side by side
| Feature | Library of Congress Web Archive 7.9/10 Visit ↗ | UK Government Web Archive 7.9/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 7.9 | 7.9 |
| Ranking | #7 in Web Archiving Software | #8 in Web Archiving Software |
| Best for | Readers accessing Library of Congress collections | Researching archived UK government websites |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Support | ||
| Integrations | 1 integrations | 2 integrations |
| Features Library of Congress Web Archive 2/2 · UK Government Web Archive 2/2 | ||
| Snapshot capture | ✓ | ✓ |
| Archive search | ✓ | ✓ |
| Specs | ||
| Capture methods | Selected and crawled by Library of Congress subject experts; not user-submitted capture | Central government websites and some social media accounts are collected by the archive; user URL submission for capture is not documented. |
| Preservation controls | Access may be restricted to on-site use; permissions affect off-site display | Public access to archived captures; takedown requests can be submitted through an online form. |
| Supported content | HTML, images, PDF documents, audio, and video files; capture of some content may be incomplete | Websites and some social media accounts; archived results include web resources with MIME-type metadata. |
| Browser or API access | loc.gov APIs; web archive browsing through loc.gov | Browser bookmarklet; Memento compliance. |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | 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… Read the review → |
For researchers, historians and members of the public tracing UK central government websites, the UK Government Web Archive provides a free way to find and view preserved web material. The National Archives collects websites and some… Read the review → |
Strengths and trade-offs
Library of Congress Web Archive — 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
UK Government Web Archive — where it wins
- Search by URL or across archive text, then filter by site, keyword and year
- View dated snapshots and capture timelines for archived sites
- Export up to 10,000 search results as CSV, JSON or NDJSON
Where it doesn't
- Covers central government sites and some social accounts, not the wider web
- Archived pages may be incomplete representations, not working copies or backups
- User-submitted URL capture is not documented
- Library of Congress Web Archive7.9/10 · Free plan
A free, searchable archive for research—not a tool for submitting your own captures.
Visit loc.govFull verdict → - UK Government Web Archive7.9/10 · Free plan
A free archive for searching and browsing snapshots of UK central government websites.
Visit the ArchiveFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update