Every time everyone is free, as a paste-ready list.
Pick people, a timezone, and a window — days or weeks out. OpenSlot reads Outlook free/busy across your organization and hands back one clean list of every open slot, ready to paste into an email, a Teams chat, or a job offer.
14 days of Pro free — no card required. Read-only calendar access, nothing stored.
Pick the people
Search your directory or type email addresses. Up to 40 calendars merged into one answer.
Set the window
Any timezone, 1 to 60 days out, your working hours. Weekends and tentative blocks are up to you.
Copy the list
Grouped by day, times where everyone is free. One click to copy, download, or insert in Outlook.
Pricing
Every account starts with 14 days of Pro. Keep it when one lookup needs more people or a longer window. Upgrade, add seats, or cancel any time — no sales call needed.
Free
$0
- You + 1 person per lookup
- 7-day window
- Copy & download lists
- "Generated with OpenSlot" line on lists
Most popular
Pro
$6 / user / month, billed $72 yearly
- Up to 40 people per lookup
- 60-day window
- Weekends, tentative rules, custom hours
- Clean lists — no OpenSlot signature
- Priority support
Team
$4 / user / month · 5+ seats, billed yearly
- Everything in Pro, for everyone
- One invoice, assign seats by email
- Add or remove seats any time
5–24 seats$4
25–99 seats$3
100+ seats$2
Larger teams & IT
Volume pricing
- Volume pricing applied automatically (25+, 100+ seats)
- One-click admin consent for your whole tenant
- Deploy the add-in org-wide from the admin center
- Security & data one-pager for reviewers