Free · open source
GPLv3, royalty-free or commercial — your choice$0forever
- Direct to IMAP, JMAP, Gmail and Graph
- On-device AI by default
- Encrypted mail stays local
Mailune.
A local-first mail client with private AI, for macOS, iOS, Windows, Linux, Android and the web.
cargo install --locked --git https://github.com/pyrlyn/mailune mailune-cli
See it run
Mailune, in the terminal.
$ export MAILUNE_HOME="$HOME/.mailune-scratch" $ mailune account add --address [email protected] --label Work $ mailune account list
Overview
What Mailune does.
Mailune is a local-first mail client. One Rust core talks to the mail provider, and native apps and a self-hosted web client sit on that core. AI runs on the device unless you opt in to a cloud model with your own key.
Mailune is in development: there is no release and no app yet. The core crates and a command-line tool that records accounts in a scratch directory build from source.
Features
Built for real workflows.
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Your mail stays between you and your provider
Mailune talks directly to IMAP and SMTP, JMAP, the Gmail API and Microsoft Graph. No vendor server sits in the middle.
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AI on your device by default
Apple Foundation Models, Gemini Nano, Windows AI or a bundled llama.cpp. Cloud models are optional and use your own key, and a ledger shows every request that leaves the device.
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AI on encrypted mail too
OpenPGP and S/MIME messages are decrypted locally, and only local models ever see them.
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Native on every platform
One Rust core under SwiftUI, WinUI 3, GTK4 with libadwaita and Jetpack Compose interfaces.
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Self-hosted web client
The first version ships
mailune-server, which serves the same core to a browser over JSON-RPC on a WebSocket.
Install
Up and running in a minute.
Install
There is no release yet. Install the command-line tool from source (Rust 1.99):
cargo install --locked --git https://github.com/pyrlyn/mailune mailune-cliOr build the whole workspace with the repository's pinned toolchain:
git clone https://github.com/pyrlyn/mailune && cd mailune && mise exec -- cargo build --workspace --lockedUsage
Record an account in a scratch directory. Nothing is sent over the network yet.
export MAILUNE_HOME="$HOME/.mailune-scratch"
mailune account add --address [email protected] --label WorkMore examples below.
Usage examples
Real commands, straight from the docs.
List the stored accounts, one address and label per line.
mailune account listLinks
Go deeper.
License
You can use Mailune under any of the following licenses, at your choice:
- GNU GPLv3 — free for open-source applications on any platform, including embedded systems.
- Royalty-free license — free for proprietary desktop, mobile and web applications, as long as you disclose that your application uses the project. Embedded systems are not covered.
- Commercial license — for proprietary applications, including embedded systems, without the attribution requirement.
Pricing
Pro is a placeholderFree forever. Pro when you need it.
Mailune Pro
Placeholder$9 / moper seat
- Team features
- Hosted dashboard
- Priority support
Placeholder — the Pro waitlist is not open yet.
Try Mailune today.
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