Every inbox, one calm thread view
A unified list across all your accounts, threaded reading, fast compose, and a reading pane that actually breathes.
- Unified inbox + per-account chips
- Rules, junk training & snooze
- Search across every account
Mail · Calendar · Contacts · Tasks
One calm place for
everything that lands
in your inbox.
Pimkin is a self-hostable, federating client that brings your mail, calendar, contacts, and tasks together — across every account you already have. No new server. No lock-in. Your data, on your terms.
Free & open source · self-hosted · macOS, Linux & Windows
Four tools, one workspace
Everything that used to need four apps.
Mail, calendar, contacts, and tasks share one window, one search, and one set of rules — so context never gets lost between tabs. Here's what that actually looks like.
Calendar
Your whole month, every calendar
Overlay calendars from every account in one grid, accept invitations in a click, and write changes straight back to the provider.
- Multi-calendar overlay
- Accept invites from email
- Two-way write-through
Contacts
One address book over every source
Gmail, Microsoft 365, CardDAV and the global address list, merged into a single searchable directory with full detail cards.
- Every provider, one list
- Photos, phones & fields
- Click to call, mail or map
Tasks
To-dos next to everything else
Keep tasks where the rest of your day lives — synced with Google Tasks, Microsoft To Do, and CalDAV VTODO.
- Due dates & priorities
- Synced both ways
- Complete from the list
Unified search· Rules & filters· Junk training· Categories & tags· Snooze· Saved searches
01
A client, not a server
Pimkin federates to the accounts you already have. No new mail server to run, no migration, no lock-in. Your providers keep doing what they do — Pimkin gives you one calm place to work.
02
Your data stays yours
Single-tenant by design and fully self-hostable. Credentials are encrypted application-side; message bodies live on infrastructure you control. Nothing is resold, profiled, or mined.
03
Web and native, in step
Use it in the browser or install the desktop app for macOS, Linux, and Windows — with offline reading and writing, system notifications, and native mailto links.
Brings your accounts together
Works with what you already use.
Connect once and Pimkin federates over open and proprietary protocols alike — reading, writing, and syncing back to the source of truth.
- Gmail
- Microsoft 365
- Generic IMAP
- CalDAV
- CardDAV
- Google Calendar
- Google Contacts
- Microsoft To Do
- Google Tasks
- LDAP / GAL
Run it yourself
Single-tenant. Self-hosted.
Honestly yours.
Pimkin deploys as one backend, a web client, and native desktop apps. Metadata in Postgres, blobs in object storage, secrets encrypted with a key only your instance holds. Bring your own infrastructure and own the whole stack.
Good questions
The short answers.
Is Pimkin free?
The source is open and you can self-host it at no cost. You bring your own accounts and infrastructure; Pimkin is the client that ties them together.
Do I have to move my email?
No. Pimkin connects to your existing Gmail, Microsoft 365, or any IMAP/CalDAV/CardDAV account and works alongside them. Outbound mail is sent through your own provider.
How do desktop updates work?
The desktop app ships a signed auto-updater. New releases are verified against a published key before they install — you stay current without hunting for downloads.
Does it work offline?
Yes. The desktop app keeps a local read cache and an outbox, so you can read and act on mail, calendar, contacts, and tasks without a connection. Changes sync when you reconnect.
Where does my data live?
On the deployment you run. Pimkin is single-tenant: metadata in Postgres, blobs in object storage, refresh tokens encrypted with a key only your instance holds.
Bring it all together.
Open the web app in seconds, or install the desktop client and take it offline.