OpenSlot
Turn Outlook calendars into paste-ready availability lists
Details
- External ID
- 1244842
- Source
- PH
- Company
- —
- Product
- OpenSlot
- Website domain
- producthunt.com
- Launched
- Sept. 10, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.30815693820825313
- Tags
- Email, Productivity, Calendar
- Fetched at
- Sept. 12, 2026, 1:01 a.m.
- Updated at
- Sept. 12, 2026, 1:01 a.m.
Description
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.
Enrichment
- Theme
- meeting scheduling and notetaking tools
- Vertical
- Horizontal
- Function
- Workflow automation
- Audience
- B2B
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- convert outlook calendar to availability text
- Manually corrected
- False
Could you build this?
Yes The product is an Office JavaScript Add-in and web tool that queries Microsoft Graph API's getSchedule endpoint and formats free/busy intervals into plaintext.
Competitors
Other products that read as similar to this one — 140 launches clear the similarity bar, closest 8 shown.
Attention rank: #70 of 141 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 280 days after the earliest competitor.
- Synced · ph · 2026-09-14 · 2 upvotes · similarity 0.56
- Timely · ph · 2026-07-17 · 176 upvotes · similarity 0.55
- MailCalm · ph · 2026-09-15 · 2 upvotes · similarity 0.46
- Open World Clock · ph · 2026-09-29 · 4 upvotes · similarity 0.44
- Timezone App · hn · 2026-03-29 · 19 upvotes · similarity 0.43
- whattimefor.me · ph · 2026-09-11 · 2 upvotes · similarity 0.43
- CalendarConnect™ · ph · 2026-09-10 · 2 upvotes · similarity 0.42
- DOFOTT · ph · 2026-09-28 · 48 upvotes · similarity 0.42
Other launches for this product
Same idea, different domain
Nobody's really built a workflow automation tool for Real estate yet.