Facebook allows you to do this. There is no need to give a third party application access all of your information.

Click "Account Settings", and then "Download Your Information". Voila. You'll get an email within a few minutes.

https://www.facebook.com/help/?topic=download

To be fair, it appears that this project predates Facebook's launch of the download feature by a few months.

I work for FB, but not on this feature.

When you download your information with the FB feature you only get your wall posts and other basic info.

I guess that with this app you can download your group's wall, something I have always desired since the creation of the new groups.

EDIT: I tried to download my group's wall with this app and it's not working.

This app has been online since late 2009. It offers formats that the FB download did/does not (dot file, XML, CSV). It received a lot of attention last year (2010) http://gadgetwise.blogs.nytimes.com/2010/05/01/facebook-app-... possibly influencing FB to add the download service. Not sure if they would admit it, but its very possible the idea seeped-in somehow.

I am the developer.

PHP runs out of memory when I try to export all of my mutual friends to dot or nodebox formats

How many friends?

~1500

I've been able to test only with mine of course, which is 589. I'm guessing its because of your number. There's a post on Stack Overflow about the troubles I had with that function, looks like I'm not done. Would you be willing to post in the discussions on the app page? http://stackoverflow.com/questions/4281210/facebook-mutual-f...

How does one receive notifications of replies to comments in this system?

I'm curious what the point of using this app is after Facebook introduced a feature allowing you to download your entire profile a few months ago. It comes down as a zip file containing a nice, offline-browsable HTML minisite with your wall, pictures, videos, etc.

http://techcrunch.com/2010/10/06/facebook-now-allows-you-to-...

Can't we get all of the data through open graph API anyways? http://developers.facebook.com/docs/reference/api/

Sadly, no, you can't. Facebook seems to offload older data to systems that are inaccessible to third-parties using the graph API. Their "Download Your Data" feature has access to this tier via async methods.

Reference: http://bugs.developers.facebook.net/show_bug.cgi?id=10576#c7...

Ok FB. You can keep the data. Give me FB options instead. Thanks.

This is a third-party application that allows you to export your data. It was not created by Facebook.