A desktop email client that brings the familiar 3-pane layout back to Gmail. Fast, private, and built for people who miss real email apps.
Windows 10/11 (x64) — Free 7-day trial, then from $1/mo
Everything you loved about classic desktop email clients, connected to your modern Gmail account.
Folders, message list, and reading pane — the layout that made Outlook and Thunderbird great. Resizable panes, compact or comfortable density.
Connects directly to your Gmail account via Google's official API. All your labels, folders, and search — nothing changes on the server side.
Bring your own API key (OpenAI, Anthropic, Google, Grok, OpenRouter, or local Ollama). Generate context-aware drafts without sharing data with us.
Save and reuse templates with smart variables. Type a semicolon to search, and insert with a keystroke. Attach files to templates too.
Switch between light and dark themes with one click. Email bodies adapt automatically, and the native window frame matches your preference.
Your emails never touch our servers. API keys are encrypted locally. No analytics, no tracking, no cloud sync. Everything stays on your machine.
Forget 50 GB PST archives that slow your machine to a crawl. ChainMail streams directly from Gmail's cloud — your mailbox lives on Google's servers, not on your hard drive.
See every email as its own row — no threads hiding messages. Sort by sender, subject, or date so nothing gets buried. Process email one by one, the way it was meant to be.
No complicated setup. Just download, sign in, and go.
Download the installer for Windows. Run it, and ChainMail launches automatically.
Authorize ChainMail to access your Gmail. We use Google's official OAuth — we never see your password.
Your inbox loads instantly. Customize your layout, set up templates, and make it yours.
No credit card required. Download the beta and see if it fits your workflow.
Download for Windows
ChainMail