I use my google profile (gmail, calender, google+, google drive, etc) literally every day. I depend on it for communication, scheduling and the idea of someone hacking and compromising it, doesn’t bear thinking of. How do I download my entire profile, so that If it’s hacked I can re-upload it and get my life back ?
Google lets you save a backup of your photos, profile information, contacts, circles, stream posts, and Buzz posts to your computer.
Download your data
https://www.google.com/settings/exportdata
This link also suggest how to download manually for Google products, which are not still currently supported by Google Takeout.
http://www.howtogeek.com/68863/how-to-downloadbackup-your-gmail-google-calendar-and-docs-data/
Google has a facility called "Google Takeout" which allows you to download an archive or all your google data. https://www.google.com/takeout/?hl=en
Google Takeout Products
Google Takeout is a Data Liberation platform that makes escaping from Google products as easy as possible. Takeout lets you take your data out of multiple Google products in one fell swoop. Moreover, you’ll find that all your data is in portable and open formats‚ so it’s easy to import to other services quickly.
Google Takeout supports the following services at this time:
+1’d sites
Blogger
Buzz
Contacts and Circles
Docs
Google+ Profile
Google+ Pages
Google+ Stream
Picasa Web Albums
Reader
Voice
YouTube
These are just the beginning: we will be adding more Google products as time goes on, so stay tuned. For now, check out the settings menu in Google+ or visit google.com/takeout to give Takeout a try.
How To Download & Back Up Your Gmail & Other Google Data
http://www.makeuseof.com/tag/download-gmail-google-data/
1) go to google takeout
https://www.google.com/takeout/#
2)The backup process will start with the creation of an archive file for all your data.
3) Then Once the backup is ready, go to the download tab and click the download button.
Gmail Backup
http://www.softpedia.com/get/Internet/E-mail/Mail-Utilities/GMail-Backup.shtml
Gmail Keeper, Never used it myself
http://gmailkeeper.com/
Backupify
https://www.backupify.com/