Have you tried LocalSend⁽¹⁾ before? I share the same experience with Snapdrop-like websites, self hosted or otherwise, where establishing connections would have a 30% failure rate, speeds progressively deteriorate on very large files, and bundling files together would need them to zipped first which can waste time. LocalSend has none of these issues and has been rock solid in my year of use so far, and I also like... - Source: Hacker News / 23 days ago

I agree and get your point. But localsend has worked well for me. Yes, it requires an app but if we could get vendors to bundle that rather than a boatload of bloatware. I know that it would be to optimistic to hope for Google. See https://localsend.org/ Spread the word. - Source: Hacker News / 2 months ago

But they also have Terms of Service (https://localsend.org/#/terms-of-service) which are not so great:

    You represent that you are over the age of 18. The Company does not permit those under 18 to use the Service.

- Source: Hacker News / 3 months ago

[1]: https://localsend.org/#/terms-of-service. - Source: Hacker News / 3 months ago

They have the best privacy policy ever: https://localsend.org/#/privacy. - Source: Hacker News / 3 months ago

Use https://bridgefy.me for offline communication. Source: over 1 year ago

Have a look at https://bridgefy.me/, this may be interesting to you. Source: over 1 year ago

5. There's another company called Bridgefy https://bridgefy.me/ that built a chat app used in some of the Hong Kong protests. - Source: Hacker News / almost 2 years ago

Bridgefy is designed to work on local Bluetooth (max about 100m) during natural disasters, a protest, at large events, at schools, etc. It will create a mesh network, so one or more other peers can help transmit messages further. See https://bridgefy.me/. Source: over 2 years ago

How about offline P2P mesh bluebottle chat? Check out this one used by protestors https://bridgefy.me/. Source: over 2 years ago