KeeWeb VS Passbolt

Best KeePass Mac client: Also KeeWeb but as a standalone app

I prefer KeeWeb on Desktop (Mac, Windows and Linux) but I agree that keepass is the most flexible and secure system for passwords

Web access to keepass database: KeeWeb. It works fully in browser, so the only web server needed to push static content, after that set KeeWeb backened pointing to WebDAV to sync DB with other devices (Strongbox on iPhones or Keepass2Andorid for android). KeepassXC on Linux doesn't have native sync, but you can use wine to run original keepass which works much better and natively support synchronization over multiple protocols

KeeWeb is an open-source password manager that's compatible with KeePass. This cross-platform tool is available for browser and desktop and doesn't require any server or additional resources. Credit for this recommendation goes to techtornado.

To make Dropbox work in your self-hosted app, go to this Wiki page.

https://github.com/antelle/argon2-browser

Per their README it seems it’s implemented into “KeeWeb”.

KeeWeb is a free cross-platform password manager compatible with KeePass“

https://keeweb.info

Hey, great job. Have you seen https://keeweb.info/? It purses the same goal, compatible with KeePass, and already has features that you're going to implement. I bet you could've learned a lot from it, and who knows, maybe have become a contributor ;)

Passbolt - Open Source Alternative to 1Password

Here's another to add to the list, Passbolt. It is open source and basically built for teams and enterprise. It is design primarily with a unique security model which is based on asymmetric end-to-end encryption, with user-owned encryption keys and support easy cross functional team collaboration. Can it hosted on-prem or host it in cloud depending on your preference. Might be too much information and a tad bias as I work here but wanted you to have all the information as passbolt fits your requirement for business level password manager.

Fyi there is also Passbolt.

I currently switched from keepass to passbolt: https://www.passbolt.com/

I might be bias here as I work here but another recommendation would be passbolt. Open source password manager that is built for teams and businesses. You can either self-host or host it in the cloud, really depending on what you require and supports secure granular sharing of credentials with nested permission in just a few clicks. Its a solution that is built with security as a top priority. It supports asymmetric end-to-end encryption based on OpenPGP cryptography using both public-private key for encryption/decryption. No secret key is stored on the server side. Both the free community edition and the paid pro version are 100% open source.

All that said...here's my shameless plug: I work for passbolt. You mentioned you have a small team, you might give it a look: https://www.passbolt.com/ there's a community edition you can install for free on the server of your choice. I'm here and happy to answer any questions.

Passbolt for passwords (backed up to KeepassX files)

Have you checked out Passbolt? Its open source built for teams and organisations. Supports asymmetric end-to-end encryption, based on OpenPGP. Its on-prem or you can host it in cloud. You can either opt for the Pro/Enterprise version or the free community edition depending on what you need.