Know when anyone is free.
Across companies. Across platforms.

WhenMesh is the availability network. Your organization connects once — Microsoft 365 or Google Workspace — and everyone can find meeting times with anyone else on the mesh, right inside Outlook or Google Calendar.

Request early access Free for individuals and small organizations.

How it works

1

Your admin connects once

One consent connects your whole organization — no per-user setup, no pairwise federation with every company you meet with.

2

Invite anyone on the mesh

Add attendees from any member organization to a meeting — different company, different calendar platform, doesn't matter.

3

See when everyone's free

Common openings appear right in your calendar — Outlook add-in or Google Calendar add-on — and you pick a time that works.

One identity, all your calendars

Work everywhere? Link it.

If you have accounts in several organizations, link them: anyone checking any of your addresses sees your true combined availability — without learning your addresses are connected.

Personal calendars count too

Attach your personal Google, Outlook.com, or iCloud calendar. It adds busy time to your work identity — one-directionally. Your personal address is never lookable.

You stay in control

Your profile belongs to you — signed in with your personal account, never your employer's. Change jobs and your profile comes with you; the old company's calendar stops contributing automatically.

Availability only. Ever.

  • Free, busy, tentative, out-of-office — that's the entire data model. WhenMesh never requests event titles, descriptions, locations, attendees, or attachments.
  • Least-privilege by construction: the Microsoft 365 connection uses a read-basic, availability-only permission; Google Workspace grants only the free/busy scope. Admins can scope access to specific groups.
  • Revocable in one click from your own admin center — WhenMesh holds no credentials for your tenant.
  • Merged identities are never revealed: lookups return combined busy times with no indication of which calendar — or which identity — they came from.