Kisa

Email, without the noise.

Read, search, write, and organize mail in one calm desktop app. When you want help writing, Kisa works with the AI tools already installed and signed in on your computer.

Works with Google accounts · Open source

DesignPersonalPhotosUpdatesWork
  1. Maya Chenmaya@example.comWorkDesign

    Design review

    The calm direction feels right. One thought…

    design-notes.pdfPDFhandoff.zipZIP
  2. Alex Morganalex@example.comPersonal

    Weekend plans

    Saturday morning works perfectly for us.

  3. Linearnotifications@linear.appUpdates

    Your weekly digest

    12 issues completed across 3 projects.

  4. Nora Patelnora@example.comPhotos

    Photos from Berlin

    Finally sorted these. Thought you'd like them.

    berlin-01.jpgJPGberlin-02.jpgJPGberlin-03.jpgJPG+1
  5. Raycasthello@raycast.com

    What's new this week

    A calmer command bar and a few small refinements.

Write the reply. Keep your voice.

Create a reply from the conversation or clean up a draft in place. Kisa uses your existing Codex, Claude Code, or OpenCode setup without copying provider credentials into the app.

  • Reply from context
  • Clean up a draft
  • Choose your model
  • Codex
  • Claude Code
  • OpenCode
Replying to Maya Chenjust now
Tomaya@example.comCcBcc

Thanks, Maya. The calmer direction feels right.

Let’s keep the hierarchy as it is and soften the secondary actions before handoff. I’ll send an updated pass tomorrow morning.

Create replyClean
Send

Everything you need. Less of everything else.

AI writing, your choice

Create replies from thread context or clean up a draft with Codex, Claude Code, or OpenCode.

Reusable templates

Save the sender, recipients, subject, and body together. Type / in a new email to insert it with variables resolved.

Stash until later

Clear new mail without losing track. Stash a message and Kisa brings it back when you choose.

Local by design

Your cache and full-text search index live in an encrypted database on your device.

Made for momentum

Move through mail, search, switch accounts, and take action without reaching for the mouse.

Private by default

Credentials stay outside the renderer. Message HTML is isolated and remote images wait for you.

Local by default. Explicit when AI needs context.

Kisa has no remote mailbox backend. Mail data and search indexes stay on your device. AI writing sends only the draft or bounded cached thread context when you invoke it, directly to the provider you selected and under its data terms.

Narrow by design

Only the capability each surface needs

  • Encrypted local database and credentials
  • Sandboxed message content with remote images blocked
  • AI receives content only for actions you start
  • Typed, account-scoped boundaries across the app

Built in the open

A calmer place for your mail.

Kisa is under active development. Follow the repository to watch it take shape and be there for the first public builds.

Follow Kisa on GitHub