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Akatsuki is the open-source Superhuman alternative: an email client you drive from the keyboard. Gmail, Outlook and any IMAP account in one inbox, on the web, your desktop and your phone.

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In pre-alpha for the web, macOS, Linux, iPhone and Android.

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Labels

  • Clients4
  • Travel2
  • Receipts9

Accounts

  • Ksam@kiln.worksOutlook
  • Ssam@samito.studioGmail
  • Isam@ito.familyIMAP
CtrlK Commands? Shortcuts
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  • Hana Mori Offsite agenda for Thursday — Draft attached. Could you take the 10:30 slot? 09:41
  • Lukas Brenner Re: Design review notes — Agree on the spacing. One question on the empty state. 09:12
  • Ren Takahashi Flight moved to 18:20 — Same gate, new boarding time. Dinner still on? Travel 08:57
  • Amara Okafor Quick question about the contract — Section 4 has a renewal date that doesn't match the order form. 08:30
  • Mira Lindqvist Q4 budget, final numbers — Two lines changed since Friday. Can you sign off by noon? 08:14
  • Tomás Ferreira Re: Onboarding copy — Shortened the second screen. Have a look when you can. 07:52
  • Kiln Works IT Your new laptop is ready — Pick it up from desk 4 any time after 10. 07:30
  • Hiring team Three candidates for Friday — Profiles and the interview plan are in the doc. Yesterday
  • Jonas Weber Contract countersigned — Attached for your records. Thanks for the quick turnaround. Yesterday
  • Elif Aydın Photos from the offsite — The good ones are starred in the shared album. Yesterday
  • Priya Raman Lunch on Wednesday? — The new place by the river opens at 12. Mon
  • Noah Fischer Re: Hiring plan for Q1 — Two roles, not three. Reasons inline. Mon

Inbox · Important

Offsite agenda for Thursday

Hana Mori · to me · 09:41

Summary · llama3.3 · on this device

Hana wants you to take the 10:30 roadmap slot on Thursday. The agenda draft is attached; she needs an answer by Wednesday.

Hi, attaching the draft agenda for Thursday.

Lukas has the morning block, so could you take 10:30 for the roadmap review?

Let me know by Wednesday and I'll send it round.

Reply…R
Important · 12 conversationsSynced · 3 accounts

Try itJK moveE archiveH snoozeS starZ undoCtrlK everything else

Swipe left to archive, right to snooze. Tap to open.

The screen moves on the key press, not on the network

  1. Key down

    You press E

    The change is made on your device first. Nothing waits for a server.

  2. Next frame

    Gone from your screen

    The thread leaves the list before the network is involved. Z puts it back.

  3. In the background

    Sent to your provider

    Akatsuki queues the change and the sync worker passes it to Gmail, Outlook or your IMAP server.

  4. Confirmed

    Your provider agrees

    If it refuses, the thread comes back to your inbox and you are told why.

Snooze, reminders and send later run on the server too, so a closed laptop still sends on time.

A key for every action, the same on every device

EArchive

Gone from the inbox at once and synced in the background. Z undoes it.

71 actions live in one key map that the web, desktop and phone apps all read. Learn E once and it archives everywhere. Coming from Gmail? Switch to its keys in settings.

Inbox · Important

08:30

Quick question about the contract

Amara Okafor · to me

Summary · llama3.3

Section 4 says the contract renews on 1 March; the order form says 1 April.

Amara wants to know which date is right before she signs on Friday.

Hi, before I sign on Friday, could you check one thing?

Section 4 has the renewal on 1 March, but the order form says 1 April.

Which one should I go with?

Summarise with
Akatsuki managedIncluded with ProAkatsuki
Claude Sonnet 5.5api.anthropic.comYour key
Any model via OpenRouteropenrouter.aiYour key
llama3.3Ollama · localhost:11434This laptop
LM Studio192.168.1.20:1234Your network
Stays on this device

Choose the model for each job, or keep it on your machine

Summaries, three suggested replies, rewrite, triage and dictation work with OpenRouter, Anthropic, OpenAI, Google, any OpenAI-compatible server, or Ollama on your laptop. Pick one for everything or one per feature. Nothing runs until you’ve said yes.

Stays on this device
A model running on this machine.
Stays on your local network
A model server on your LAN, named by host.
Leaves this device
Your own cloud provider, named, with what is sent.
Sent to Akatsuki, not stored
Managed AI, included with Pro.

Every AI action shows one of these before it runs. Managed requests are never stored, logged or used for training.

Your mail stays with your provider and on your devices

Message bodies
Fetched from your provider when you open them, cached on your device.Never stored on Akatsuki’s servers.
Attachments
Handled the same way as bodies.
Headers and snippets
Sender, recipients, subject, date and up to 200 characters.Kept so lists and search are instant.
Mailbox credentials
Held only by the sync worker, encrypted at rest.They never reach an app.
Email HTML
Sanitised before it’s shown. Scripts never run.
Remote images
Blocked until you allow them.Then loaded through a proxy that hides your IP address.
Read receipts
Off unless you turn them on.
Your API keys
Stay on the device you typed them into.
Training and ads
Your mail is never used to train models, never sold and never used for advertising.

Akatsuki Pro

$20a month

Akatsuki Pro: hosted sync for every account, every app, and managed AI. The first 14 days are free; starting the trial needs a card.

See everything in Pro →

Rather run it yourself? Self-hosting is free for personal, non-commercial use. Commercial use needs written permission. How self-hosting works →

Billed monthly in US dollars. Nothing is billed during pre-alpha.