The Internet Archive presents The Official Wayback Machine Extension. With the power of the Wayback Machine, you can go back in time to see how a website has changed and evolved through the history of the Web!

Functions include seeing the oldest or newest version of a website, or a calendar of every past archive. There's also the "Site Map" feature that will draw a pie graph of the past history of pages of a site.

The toolbar button shows you how many snapshots of the website you're visiting are in the Wayback Machine, and the date of the latest snapshot in the popup window.

You can right-click, then "Open in Wayback Machine" in the context menu. Try it while over a link.

Whenever you encounter a "dead link" (a.k.a 404 Not Found) page, this extension will automatically provide a link to a saved version in the Wayback Machine.

Most features work without requiring an account, but if you do create an account, you'll be able to archive any website easily with just a single tap of a button.

Convenient 3rd-party functions for searching for Related Tweets, Alexa, and Whois for looking up domain names, as well as sharing links on social media websites.

For support, please email

What’s New

Version 1.4

We've added a couple of new features:

• A new toolbar button badge shows you the number of snapshots of the website you're visiting which are stored in the Wayback Machine, and the date of last snapshot in the popup window. Will not activate while using Private Browsing, to respect your privacy.

• We added an "Open in Wayback Machine" item to the right-click context menu. Try hovering over a link and right-click to open.

Ratings and Reviews

zerichen ,

So glad that it has an Safari version extension!

I used it on Chrome a lot, but recently I prefer safari more and I happen to find this extension available on App Store. What a great tool!

bd designr ,

What it is.

Somebody once figured out that people and companies might publish claims on the internet (for example specific claims, warrantees, etc.) in their advertisments, and later, after they got caught lying, change their ads and pretend they never made those claims.

The Wayback Machine scours the internet and takes periodic snapshots of websites which are stored in a massive database.

That way, you can 'Go Back In Time' and see what claims were made by people and companies on their webpages even if those claims are later deleted.

The Internet is Eternal.

nsiab xv ,

Let me disable popups!

This extension keeps popping up a window in front of webpages about looking up the Archive version of an unavailable page...but it frequently does it on pages which are still available live!


Internet Archive
4.8 MB

macOS 10.13 or later, 64-bit processor



Age Rating
Unrestricted Web Access


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.