Conversations that stay together
Replies, forwards, and follow-ups are grouped into a single thread, in order. Open any message and the whole history is right there.
Everything mail should do
Serious features, zero lock-in
The workflows you expect from a paid client — running on infrastructure you control.
Sieve filters, server-side
Rules run on the server, not in a tab — mail is sorted before any client sees it.
require ["fileinto", "imap4flags"];
if address :domain "from" "github.com" {
addflag "\\Flagged";
fileinto "Deploys";
}A composer with range
Rich formatting, attachments, and reusable templates — powered by Tiptap.
Templates, saved once
Save your best replies as reusable templates, then insert one from the composer toolbar in a click.
Contacts at your cursor
Hover a sender to see who they are and what's recent. Full address book in the sidebar — create, edit, and search instantly.
- Advanced search
- Drag & drop to folders
- Nested folders with colors
- Light / dark themes
- Mobile-responsive layout
- Quick sender preview
- Shared folders via IMAP ACLs
Self-host it yourself
From clone to inbox
Docker is the realistic path to a full self-hosted deployment — the docs cover configuration, connecting your mail server, and running the API and worker alongside it.
$git clone https://github.com/your-org/webmail-ui.git$cd webmail-ui$docker compose up -d
Starts the UI container. A full self-hosted setup also needs the API, a Postgres + Memcached + RabbitMQ backend, and a mail server — see the docs for wiring it all together.
Own your email again.
Free, open source, and built in the open. Star the repo to follow along — or open an issue and shape what ships next.
Serious contributors get rewarded — see how.