Launching today
OpenSlot
Turn Outlook calendars into paste-ready availability lists
2 followers
Turn Outlook calendars into paste-ready availability lists
2 followers
Booking links make people schedule for you. OpenSlot hands them your free times instead. Pick people, a timezone and a window; it reads Microsoft 365 free/busy (read-only, nothing stored) and returns one clean, paste-ready list of every slot everyone is free. Works on the web and inside Outlook: insert into the email you're writing, or open it on a received message and hit Reply with times. Working hours, minimum slot and weekends are remembered. Free plan, 14-day Pro trial, no card.
Hi Product Hunt! I'm Jonathan, and I built OpenSlot because I was tired of typing "how about Tuesday at 3" and then eyeballing three people's calendars to check.
Booking links solve this by making the other person do the work. I wanted the opposite: hand them my free times, in plain text, inside the email I'm already writing.
OpenSlot reads Microsoft 365 free/busy (read-only, nothing stored), merges the people you pick, and gives you one paste-ready list in any timezone. It's an Outlook add-in and a web app. In compose it inserts at your cursor; open it on a received email and "Reply with times" opens a reply with your availability already in it.
It went live in Outlook's add-in store this week (search "OpenSlot" under Apps). Every account starts with 14 days of Pro, no card.
I'd love to hear what's missing. Which calendars should it read next?
Thanks for checking out OpenSlot today! No questions yet, so the fastest way to try it: it's in Outlook's add-in store (search OpenSlot under Apps), and every new account starts with 14 days of Pro, no card needed. If you hit anything confusing or have a question, email me directly at support@useopenslot.com and I'll get back to you personally. Really appreciate everyone taking a look.