With a password manager, you won't need to remember unique, long, complex passwords for every online account. The software will remember it for you, strengthening your password security and minimizing your risk the next time there's a massive data breach. All you'll need to remember is the single "master" password to the password manager itself.
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Based on our extensive testing of seven services, focusing on user experience, platform support, security and overall performance, the best overall password manager is LastPass, which offers an ideal combination of ease of use, convenience and security.
Dashlane was a close runner-up, thanks to its nifty ability to reset all your passwords at once.
We also liked True Key's forward-looking biometric authentication, Keeper's simplicity and Sticky Password's user-friendliness, although each lacked features we consider essential.
Two other password managers are best suited for niche segments: 1Password for Mac users, and KeePass for tech-savvy users of Linux and other open-source software.
What to Look For
All seven password managers we've reviewed secure your data, both on your machine and in the cloud, with the toughest form of encryption in wide usage today. All have software for Windows, Mac OS X, Android and iOS. All have free options, though only KeePass is entirely free. All can be installed on an unlimited number of devices for a single (usually paid) account, and most can store an unlimited number of passwords.
All of the password managers we reviewed can also generate new, strong passwords for you (though not always on the mobile version), and some will alert you to the latest data breaches. Most offer a two-factor authentication option for master passwords.
Many offer to save your personal details, credit-card numbers and other frequently used information so that they can quickly fill out online forms for you. Finally, none can recover your master password for you if you forget it, although some let you reset that password to something else.
Cloud vs. Local Management
KeePass primarily stores the user's "vault" of passwords and other sensitive information locally, i.e. on one of the user's own devices. There's a security advantage to that, as none of the data has to ever reach the internet, but it can be a hassle to synchronize the vault with other devices.
Far more convenient are cloud-based password managers, which include LastPass, Dashlane, Keeper and True Key. These services keep encrypted copies of your vault on their own servers and make sure all your devices are always synced.
The risk, although it's small, is that one of the services could be compromised and your passwords released out into the wild. (LastPass has had a number of documented security issues, all since fixed.) Two other password managers, Sticky Password and 1Password, can work as either a device-based or cloud-based manager, although 1Password is now downplaying its local-storage option and will only sell it to you if you email the company directly.
How We Tested
We installed and used all seven password managers on a Windows 8 laptop, an iPad Mini and a Samsung Galaxy S6 Android smartphone. Additional testing was done on an iPhone 6s Plus, a OnePlus One Android smartphone and a Windows 10 laptop.
We took into consideration each service's ease of use, variety and usefulness of features, and its security practices, especially concerning two-factor authentication. Design was noted, but did not factor into our rankings, and price was considered only when two or more premium password managers were otherwise roughly equal.
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