Unified inbox
Gmail, Outlook, Spacemail, Purelymail, and any IMAP provider in one place.
Local-first · Open source · Your mail stays yours
Email that feels modern
without giving up control
Open Mailer is a beautiful, unified inbox for Gmail, Microsoft 365, IMAP, and more — with offline cache, OS keychain storage, and no hosted backend required.
Everything you need, nothing you don't
A focused email client without ads, tracking, or a cloud middleman reading your mail.
Credentials in your OS keychain
Passwords and OAuth tokens never touch our servers — there are no servers.
Offline-first
SQLite cache with full-text search keeps your mail available without a connection.
Instant search
FTS5-powered search across subjects, senders, and message bodies.
Beautiful by default
Dark gradients, smooth animations, and a layout that adapts from phone to desktop.
Built for speed
Rust backend, native shell, and a lean React UI — fast sync, fast compose.
Download
Get Open Mailer for your device
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