DuckDuckGo vs Bitwarden

DuckDuckGo does not collect or share any personal information. Their privacy page has a great rundown on why privacy is important. The most important repercussion of this is that DDG doesn't use the data collected to tailor results, avoiding exposure to the "Filter Bubble".

DuckDuckGo results page is an infinite scrolling page, so you don't need to be clicking through pages.

The ads are clearly labelled as ads and are non-obstructive. The ads are based on the searched keywords and there's no tracking involved on their visibility. You just need to remember that the site the ad links to might track you.

The search engine allows freely disabling ads.

Bangs are commands that allow searching via a different website's local search engine, using keywords or abbreviations with an exclamation mark (!). For example searching "world war ii !wiki" will automatically redirect to Wikipedia.org and show results for the query "world war ii" there, instead of DuckDuckGo, using Wikipedia's search engine.

The more common sites have shortened alternatives for these commands. Such as !g for Google, !i for images and !yt Youtube.

The whole list of bangs can be found by typing "!bang" in DuckDuckGo.

For select queries DDG pops up a box that supplies the exact answer. For example, searching "stopwatch" will pop up a stopwatch, asking for "words like..." will show a list of related words, typing "password" will generate a password, etc.

DDG allows customizing almost any aspect of the search engine's appearance including fonts, page width, alignment, header behavior, site icons, etc and has a selection of premade themes available as well.

Duckduckgo lets you watch videos right from their site, so you can have more privacy than watching on youtube.com.

Only accessible from Tor.

Sometimes the search results are better. Most of the times, they're at least as good as.

For example, if you search "Color Picker" , you see a color picker.

Of course, it's nicer when enabled, but it's not required. Some browsers are too limited (mobile, terminal) or turn it off for security reasons (tor, etc.), and DDG still works.

DuckDuckGo has an API with some websites. With the help of this API, if you search for a fix of a problem in Linux, you can easily find an answer to the problem. For example, if you search for "How to update linux", you will get a message like this:
How to install updates via command line
Try this:

sudo apt-get update # Fetches the list of available updates
sudo apt-get upgrade # Strictly upgrades the current packages
sudo apt-get dist-upgrade # Installs updates (new ones)
--SirCharlo

DuckDuckGo does not filter your search’s with the data that they have. You get to see everything the Internet has to offer in a safe, private way.

This is the biggest private search engine there is

You can go to the Wikipedia page for pigs by doing !w pig.

Bitwarden is open source and can therefore easily be reviewed and checked for security. Its Github repository is accessible here.

It is easy to start as the majority of features are on the free version.

Automatically synchronises across various devices and platforms. Passwords get fully encrypted locally before leaving the computer.

No ads, no tracking.

There are plugins for Firefox, Chrome, Safari, Opera, Edge, Vivaldi and Tor Browser.

No need to think of individual passwords. This can be easily accomplished with an easy to use built-in password manager.

End-to-end AES-256 bit encryption, salted hashing, and PBKDF2 SHA-256.

Offers 2FA with Authy, Google Authenticator or via email.
Additionally, the Pro Version has Duo Security with Duo Push, SMS, phone call, and U2F security keys: YubiKey (any 4 series device or YubiKey NEO) and FIDO U2F (any FIDO U2F certified key).

Possibility to manage passwords without installing the app or the browser plugin.

You can store multiple logins on the same website.

Very easy to add personal notes.

You could retrieve passwords in the scripts.

When a site has multiple credentials (like I have for some brokers and banks), then the most recently used is automatically populated (if auto-fill is opted). This feature is unique (to my knowledge) and spectacular (especially for sites that log you off frequently and re-logging in is required).

Android app is a little slow and buggy, but it works well and has been improving.

Host your own server via Docker for small installations or by package for multiple servers.

The features included in the free version are totally sufficient for most personal uses. No limitation of devices synching.

You can use Windows Hello or Apple's TouchID on PC to unlock desktop applications and browser extention.

Folders can be created within folders.

It can also be used for sites where the domain changes frequently.

Just copy CSV text.

Save data on the web.

Using enterprise subscribtions you can share password entries among your colleagues via 'collections' or with other companies that are connected to yours. You decide if it's your personal entry or a companies.

Auto-fill by specifying the form with the selector of css.