It is difficult to pick a password manager. After many considerations I eventually decided on a keepass2 database. It is a difficult decision because you have to place quite a lot of trust in the solution.
I want to be able to access my database from every device. I use windows, android, linux, and osx. Additionally I would also like to have a fallback solution for how I could access the db in an environment where I cannot install anything. This means the database has to be hosted/synced to a server or to the cloud. I don’t trust the cloud, so it is essential that the decryption takes place client side. Keepass2 allows me to store the database in the cloud (webdav/google drive/dropbox/…).
There are keepass2 clients for all the different platforms. That ticks one box for me. But one thing that makes me uncomfortable is that I have to use a different client for every platform. That is inherently less secure. Can I trust them all? I trust the main Keepass2 project. It is a C#-project, and is primarily designed for windows. It should be possible to run it with mono on linux and osx, but I have not had success with that. Many of the alternative clients for other platforms have a smaller user base, and consequently the code has received less scrutiny. So, that is not an ideal situation. In the end here are the clients that I use, or consider to use:
I use Keepass2 on my windows machine. I use it with two plugins: 1) keeagent which replaces pageant when i use putty. 2) keepasshttp for browser integration. I am not totally comfortable with having to trust plugins.
Keepass2android is good. But do I trust my phone to keep any secrets?
Online fallback solution
Keeweb is a sleek node.js project, and can run both in the browser and on the desktop (it uses electron for that). All the crypto takes place client side. I have a self hosted version that I can use if i have run out of other options.
I consider using MacPass which looks good (I don’t currently use it) - it has a builtin keepasshttp server which would be convenient for everyday browsing. Some alternatives would be Keeweb, Keepass2 (if i can get it to run using mono), and KeepassX.
I think Keepass2 is a great open source solution, but it the sheer number of projects I have to trust for something this critical is somewhat of a problem. I can appreciate why LastPass($) is an attractive solution. Keeweb could potentially solve this as it is truly cross platform. KeepassX is also multi platform, and is much leaner than the other desktop tools clients on this page. E.g. Keeweb uses node.js and electron (which is huge), and Keepass2 relies on mono/dotnet framework (also huge). Keeweb is the only solution which can run in a browser. So if you anyway have to trust it for that, then you might as well trust it for desktop. KeepassX and Keeweb do not support keepasshttp out of the box, which is a no-go for me. Keeweb has it on the todo list though.
For a completely different solution I would probably look at passwordstore.
A password database contains so much critical info, that it is essential to set up a backup/restore solution for it.
Recently, two family members have been hit by ransomware. This factored heavily into how I have decided to store, and backup my database. I am also concerned with database corruption. I am would not trust e.g. a dropbox mount to be sufficiently safe. I use rclone to backup my password database immediately to the cloud on every save. For everything else I use duplicati2.