OpenSlot
Turn Outlook calendars into paste-ready availability lists
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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.
PH · launched Sep 10, 2026 · 1 upvote (top 69%) · 0 views
Niche: meeting and schedule planning software · 103 launches, 6 in the last 7 days ▼ -14% · Explore this niche →
Category and tags
- Horizontal
- Workflow automation
- Prosumer
- Not AI
- Commercial product
- Productivity
- Calendar
Visit website ↗ Source listing ↗
More like this: all 103 launches in meeting and schedule planning software →
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 : 349 launches clear the similarity bar, closest 8 shown.
Attention rank: #294 of 350 (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 0.55
- OpenCal · ph · 2026-10-09 · 1 upvotes · similarity 0.55
- Timely · ph · 2026-07-17 · 176 upvotes · similarity 0.54
- Calenoo · ph · 2026-10-08 · 8 upvotes · similarity 0.49
- Global Overlap · ph · 2026-10-14 · 1 upvotes · similarity 0.49
- Sigbot · ph · 2026-10-06 · 1 upvotes · similarity 0.48
- SyncMyDay · ph · 2026-10-06 · 2 upvotes · similarity 0.47
- Calendar Assistant · ph · 2026-10-24 · 6 upvotes · similarity 0.45
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.