Doodle
doodle.com
Propose several times and let a group tick the ones that work for them
Free tierClassic
Loading page
when2meet.com
Paint your free hours on a grid and watch the group overlap darken.
Create an event, send the URL, and everyone drags across the hours they are free; the shared grid darkens where availability stacks up, so the best slot is visible rather than calculated. There is no account, no email and no app, and it handles participants in different time zones by rendering the grid in each person's local hours. It has looked the same for over a decade and works on the first attempt.
AltFTool does this too
If you would rather not leave the site, Availability & Time-Zone Finder covers the same job here — free, no account, and it runs in your browser.
Open Availability & Time-Zone FinderQuestions
Works the moment the page loads. No account, no email, no trial. It only finds the time — nothing is written to anyone's calendar and there are no reminders.
Yes. When2meet sends your input to its own servers to process it. That is fine for public material; for anything containing personal data, use one of the on-device tools instead.
It only finds the time — nothing is written to anyone's calendar and there are no reminders.
Alternatives
Same category or same task, ordered by how closely they overlap.
doodle.com
Propose several times and let a group tick the ones that work for them
cal.com
Open-source scheduling links you can run on your own server
calendly.com
Send a link and let people book a slot your calendar says is free
cryptpad.fr
Collaborative documents the server cannot read, with no account to start
easyretro.io
Runs a retro as a board of cards people add, vote on and group
docs.google.com
Several people typing in one document without overwriting each other