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Your private workspace for thinking, writing, and AI.

Write, organize and remember — without giving up control of your data. Open source, offline first, syncs directly between your devices.

Download Koru — freemacOSWindows
Write → Organize → AI
Write → Organize → AI

AI and developers

AI on your terms.

Koru doesn’t lock you into one AI. Run the agents you already use as tabs in Koru, and let them work on your documents over MCP.

Koru + AI agent
Koru + AI agent

  • Run your agents as tabs

    Open Claude, Codex or any supported agent as a tab in Koru, beside the documents it is working on.

  • Connect over MCP

    Your agents read and edit your workspace through Koru’s local MCP server.

  • Open source

    Koru’s code is public on GitHub. Read it, build it yourself, and open an issue or a pull request.

Explore Koru for developers →

Voice

Speak. Koru listens locally.

Capture thoughts using voice without sending your audio to the cloud. Koru Voice runs speech recognition on your device and works in Koru and your other apps — for free.

Local voice capture
Local voice capture

  • On your device

    Your audio never goes to the cloud.

  • In your other apps

    Dictate anywhere you can type.

  • Free

    Part of Koru, with no subscription.

Devices

Koru goes wherever you do.

Use native Koru apps on desktop, iOS and Android. Capture something on your phone and continue on your computer.

The Lisbon trip note in Koru on Windows
The same note in Koru on a phone
Mobile ↔ Desktop

  • Peer-to-peer sync

    Sync directly between your devices, end-to-end encrypted, without requiring Koru Cloud.

  • Profiles

    Create profiles for work, school, personal life or different roles. Each profile can contain multiple independent workspaces.

  • Always-available Cloud sync

    Koru Cloud will add an always-online copy of your workspaces for sync, backup and access across devices.

Bring your work with you.

Moving to Koru shouldn’t mean starting over.

Evernote · Notion · OneNote · Google Docs · Markdown · TextBundle

See import options →

Roadmap

Koru is just getting started.

We’re building Koru into a complete private workspace for capturing ideas, planning work, collaborating and creating.

What we have released so far: we try to release a nightly version every day, a beta every week and a stable version every two weeks. See releases.

  • Plan

    Tasks, lists and reminders · In nightlyCalendar integration · Planned

  • AI

    Delegated agent runs · In nightlyAgent orchestration · In nightly

  • Koru Cloud

    Cloud sync and backup · In developmentCloud API and MCP · Planned

Explore the roadmap →

Your work. Your devices. Your AI.

Free, local and yours. Koru Cloud is coming.

Download Koru — freemacOSWindows

The Koru app is available in English today. More languages are planned.