Archivarix Echo is an independent research and archival tool that searches 200+ web archives at once from a single box. Paste a URL, DOI, ISBN, social handle, file hash, or just a title: Echo detects what it is and routes the query to the archives that can actually answer it. Our mission is to support digital preservation, research, and the public interest by making the world's scattered web archives accessible and searchable from one place.
How it works
The web is constantly disappearing. Pages go offline, accounts are deleted, papers move behind paywalls, and projects shut down. At the same time, a vast and fragmented ecosystem of public archives keeps copies: the Internet Archive's Wayback Machine, archive.today, Common Crawl, scholarly indexes like Crossref and Unpaywall, book libraries like Open Library and HathiTrust, plus hundreds of niche, subject-specific archives.
The problem is that each archive has its own search box, its own query format, and its own coverage. Echo sits on top of them. It recognises the kind of thing you pasted, sends it to every archive that understands that kind, and brings the answers back together, so you do one search instead of fifty.
What you can do
- Paste anything. A web URL, a DOI, an ISBN, an
@handle, a content hash, or a plain-text title. Echo classifies the input and picks the right archives automatically. - Search 200+ archives at once across web pages, full-text, academic papers, software packages, books, social media, images, video/audio, torrents, datasets, cultural heritage, and more.
- Recover what's gone. Find archived copies of pages, papers, and media that are no longer at their original address.
- Browse the full catalog. Every archive we know about (including the ones we can't search programmatically yet) with notes on coverage, access, and how each one works.
- Keep your history. A free account remembers your past searches and raises your daily limits.
What you cannot find
Archives only hold what was captured before something disappeared. If a page, paper, or video was never crawled or deposited by any public archive, there is nothing to recover. Some archives are also link-only: Echo can point you to them but cannot run the search on your behalf (more on that in the Guide). Coverage is best for material that was public, popular, or academically cited.
Data sources
Every result Echo shows comes from a publicly available archive or open dataset: for example the Wayback Machine CDX API, archive.today's timemaps, Common Crawl, Crossref, Unpaywall, DataCite, OpenAIRE, Open Library, HathiTrust, Wikisource, Software Heritage, Wikimedia Commons, and many more. Echo does not host the underlying content. It indexes and links to what these third-party archives already make public, and every result points back to the archive that holds it. See the catalog for the full list, filterable by category, cluster, API, and access type.
Not affiliated
Archivarix Echo is an independent tool. It is not affiliated with, endorsed by, or connected to the Internet Archive, Common Crawl, Google, YouTube, or any other archive or platform it indexes. All trademarks belong to their respective owners.
Content removal
If you are a rights holder and believe that material surfaced through Echo infringes your rights, please contact us using the link below. We maintain a content-removal process and respond promptly to valid requests. Because Echo links to third-party archives rather than hosting content itself, we can also point you to the archive that actually holds the copy. See our Terms of Service for details.
Built by Archivarix
Echo is developed by the Archivarix team, known for tools that help recover and work with archived web content. Visit archivarix.com and archivarix.net to learn about our other projects.