Mail Digest reads your last 24 hours of email and tells you what matters — priority, tasks, calendar events, and suggested replies. Connect Claude, GPT, or Gemini with your own API key. We never see your keys or your emails.
Most AI mail clients lock you into one vendor and charge a monthly subscription. Mail Digest is open source: pick Claude, GPT, or Gemini, bring your own API key, and pay the provider directly.
Claude, GPT, and Gemini built in. Choose the model that fits your quality bar and budget — Sonnet, GPT‑4.1, Gemini Flash, or whatever you configure.
API keys stay on your machine. Requests go from your desktop straight to Anthropic, OpenAI, or Google — no Mail Digest server in the middle.
Gmail OAuth tokens live in your OS keychain. Email goes from Google to your machine, then to the AI provider you chose. No Mail Digest backend, no analytics, no telemetry.
Set the hour. Wake up to your inbox already triaged: priority, action items, calendar events, suggested replies — ready to skim with your first coffee.
Designed to read like a morning paper, not a notification feed. Color-coded sections, calm palette, instant scanning.
MIT licensed. Audit the prompts. Audit the network calls. Fork it. Build the integrations you actually need — not the ones a vendor decides to ship.
Create your own OAuth credentials in Google Cloud Console — takes about three minutes. Mail Digest never sees them; they live on your machine.
Choose Claude, GPT, or Gemini and paste your API key. Switch provider or model any time without changing your workflow.
The daily brief renders in seconds. Set a time and the app prepares it for you every morning.
A single scrolling document: what needs you, what the AI proposes, and what it already handled. No sidebar, no inbox noise.
The market has settled on proprietary AI mail clients with monthly subscriptions and vendor lock-in. Mail Digest is open source: free app, your API keys, your provider.
| Mail Digest | Superhuman | Shortwave | Gemini in Gmail | |
|---|---|---|---|---|
| No app subscription | Yes | $30/mo | Limited | Yes |
| Bring your own API key | Yes | No | No | No |
| Open source | MIT | No | No | No |
| Switch between AI providers | 3 providers | No | No | No |
| No telemetry, no analytics | Yes | No | No | No |
| Cross-platform desktop app | macOS · Win · Linux | macOS · Win | All three | Browser only |
Download Mail Digest, point it at your Gmail, and read tomorrow morning's brief before anyone else opens their laptop.