Instant
The window never waits for the network. Sync, indexing and AI run in their own lanes, so scrolling, reading and search stay instant while your mail pours in behind them.
Native mail for Mac
Mail that keeps up with you.
KarmaMail is built for people with serious mail. Forty thousand messages open like forty. AI writes your replies, answers your questions and checks your facts. The things you do every day happen in one click. And every attachment you've ever received is finally in one place.
Request a beta inviteApple silicon · macOS 14 Sonoma or later
Lighter
The same mail in a quarter less space than Apple Mail, with every attachment searchable. Identical files are stored once, and text is compressed losslessly.
AI, your way
Replies, summaries, answers and fact-checks from OpenAI, Claude, Gemini, Grok, Groq, DeepSeek, or a model running entirely on your Mac.
On autopilot
KarmaMail spots what you always do with a sender and turns it into one click. Rules, templates and reply automation handle the rest.
Same mail. 14 GB less disk.
240,000 messages and every one of their attachments, measured side by side on the same Mac.
59.8 GBApple Mail
45.5 GBKarmaMail, including a searchable index of every attachment
7,802 → 1Copies of the same signature logo. Apple Mail stores every one. KarmaMail stores it once.
Only in KarmaMail
What you get here that Apple Mail and Outlook for Mac simply don't do.
| KarmaMail | Apple Mail | Outlook for Mac | |
|---|---|---|---|
| Use any AI you like: OpenAI, Claude, Gemini, Grok, Groq, DeepSeek, or fully local | ✓ | — | — |
| Ask your entire mailbox a question in plain language | ✓ | — | Paid Copilot add-on |
| Fact-check a draft against the conversation before you hit Send | ✓ | — | — |
| Replies written in your own voice, learned from your sent mail | ✓ | — | — |
| Every attachment from every account in one library, searchable inside the files | ✓ | — | — |
| Learns what you always do with a sender and offers it as one click | ✓ | — | — |
| Reply rules where AI writes a tailored answer to each message, for you to approve or send automatically | ✓ | — | — |
| Every newsletter on one screen: keep, archive or unsubscribe in one pass | ✓ | — | — |
| Gmail straight from your Mac to Google, never through someone else's cloud | ✓ | ✓ | — |
Everything KarmaMail does
Speed, built in
- The interface never waits for a server. Ever.
- Direct, native connections: Microsoft Graph for Microsoft 365, the Gmail API for Gmail and Workspace, IMAP with push for everyone else.
- Newest mail first; history fills in behind you.
- Every account syncs in its own lane. One slow server never holds up the rest.
- Moves, deletes and read state happen the instant you act, with Undo.
- One search box across every account, every message and every file.
AI that does the work
- Reply for me: a complete, editable reply from the conversation and your talking points.
- Your voice: drafts that sound like you, learned from your own sent mail.
- Ask Karma: ask your mailbox anything and get the answer with the messages behind it.
- Claim review: dates, figures and facts checked against the thread before you send.
- Summaries and insights for long conversations.
- Search by meaning, not just by matching words.
- Dictate drafts with your voice.
Automation for the repeats
- Mail habits: file it, delete it, forward and file it, in one click next time.
- Rules that run on your Mac, across every account.
- Templates for the replies you write again and again.
- Newsletter review with one-click verified unsubscribe and a record of everything you left.
- Bulk actions across thousands of messages, with a history you can review.
The attachment browser
- Every photo, PDF, document and spreadsheet from every account, in one library.
- Search inside the files, including text in scanned images.
- Instant Quick Look previews. Open or save without hunting for the email.
- Bulk export, with a record of what went where.
- OneDrive, SharePoint and Google Drive links listed right alongside.
Less storage
- Attachments download when you open them, and cached files expire on your schedule.
- Identical content stored once, however many messages carry it.
- Moving from Apple Mail? KarmaMail reuses what's already on your Mac.
- Health & storage shows exactly what's stored and compacts it safely.
Reading and writing
- Unified Inbox for every account, plus each account's full folder tree.
- Real conversations, threaded by message identity, never by guessing from subjects.
- A dense, sortable list with date groups and inline conversations.
- Rich composer with per-account signatures and image size control.
- Undo Send, an Outbox, and sending that waits for you when you're offline.
- Forward with the original attachments, automatically.
Everything around your mail
- Calendar beside your mail: Microsoft 365 and Apple calendars, with meeting replies.
- Tasks and contacts in the side panel.
- People map: who you correspond with, and how.
- Verification codes from email, ready in AutoFill.
- Full offline mode: read, search and write anywhere; it all goes when you're back.
Private and native
- No KarmaMail cloud, no KarmaMail account, no tracking.
- Passwords and tokens in the macOS Keychain.
- AI goes straight to the provider you chose, or never leaves your Mac.
- Pure macOS: native toolbar, full keyboard control, VoiceOver, light and dark mode.
- Background work never steals focus or switches your desktop.
Gmail, Microsoft 365, iCloud, Fastmail and any IMAP account. One app.
The closed beta is open to a small group of Mac power users.