Droppy Cloud
Drop files, get a private link, send it anywhere. The recipient opens it in a browser. No account on either end.
Drop files onto the shelf and pick the cloud Quick Action, or use the Droppy Cloud Droplet. Droppy uploads them and copies a getdroppy.app/cloud/<slug> link to your clipboard. Every active share is listed in the menu bar with its own delete button.
Limits
Not end to end encrypted
Uploads and downloads use HTTPS, and files at rest are encrypted server-side by Cloudflare, but Droppy Cloud is not end to end encrypted. If you need confidential transfer, encrypt the files yourself first or use a tool built for that.
Droppy Sync, which carries your library to your iPhone, is a separate path and is end to end encrypted.
Full detail, including exactly what is stored per share, is on the Droppy Cloud page.