Read your email
like messages.

ThreadMail turns your inbox into friendly chat-style conversations — one thread per person, one tap to tidy up, and all your accounts side by side.

Free & open source · Windows · macOS · Linux

Your inbox, finally readable

Email scatters one exchange across days and buries it in noise. ThreadMail regroups everything around the people and services you actually talk to.

💬

Conversations, not lists

Every correspondent becomes one chat — even services that write from several addresses stay in a single thread.

🧹

One-tap cleanup

Done with a sender? Delete the whole conversation in one action instead of picking off messages one by one.

👥

All your accounts, one app

Switch mailboxes from a messenger-style sidebar. Several accounts feel like one tidy app, not five browser tabs.

Set up in a minute

Type your address and ThreadMail finds your mail server's settings for you. Gmail signs in with Google in two clicks.

✈️

Fast, even offline

Your mail is synced to your computer, so everything opens instantly — on the train, on a plane, anywhere.

📎

Reply like you chat

Type at the bottom of the conversation, attach files, hit Send. That's it.

Private by design

ThreadMail lives on your computer and talks only to your mail provider. No ThreadMail account, no cloud, no tracking.

🔑

Your passwords stay yours

Credentials are kept in your operating system's secure keychain — never in a file, never on our servers (we don't have any).

🕵️

Reading leaves no trace

Mail is only marked as read when you open it — syncing in the background never touches your read status.

💜

Free & open source

Built in the open. No ads, no premium tier, no strings — and anyone can check exactly what the app does.

Get ThreadMail

Native installers for every desktop — and the app keeps itself up to date.

🪟

Windows

Windows 10/11, 64-bit

Download .msi portable .zip
🍎

macOS

Apple Silicon & Intel

Download .pkg Intel Mac .pkg
🐧

Linux

x86_64, glibc

Download .tar.xz install script

Checksums and the full build list are in the release manifest; every installer has a .sha256 file beside it.