Annotate. Mirror. Control. Create.

Your screen.
Your canvas.
Without limits.

Annotate your screen, mirror it to any tablet, and control your desktop with real pen pressure. Capture, edit, and hand any of it to an AI agent — all over your own network, with no account and nothing in the middle.

Download for macOSExplore features
Available for
OverviewAnnotationsCapturesRecordingsAI AgentsSettingsOverviewTotal Views28,540+12.5%Important insight!Recent ActivityDesign Review10:32 AMFeature Discussion9:15 AMBug InvestigationYesterdayProject UpdateMay 7ResearchMay 6Focus hereDrasynPen Pressure82%

Pen pressure support!

  • Low latencyHardware-encoded H.264, peer to peer
  • Pen pressureInjected as real OS-level pen input
  • AI readyAgents capture and annotate on request
  • Secure by designOne credential per device, revoke anytime
Everything you need

Powerful features for how you work.

  • Annotate

    Draw, highlight, and add notes straight onto your screen, live, while you talk.

  • Mirror

    Send any screen or single window to a tablet or phone over your own network.

  • Control

    Turn the tablet into a control surface — pen, pressure, keyboard, and pointer.

  • Capture

    Take screenshots or record video, with the text and UI tree captured alongside.

    REC

  • Edit

    Crop, mark up, and re-edit any capture later — the original frame is kept.

  • AI agents

    Let an approved agent take a capture, read the screen, and mark it up for you.

    Agent annotated this
    Can you highlight the key areas?
Connect your way

Work offline or online.

Choose what fits the room. Stay entirely on your local network — no account, no internet — or reach your desktop from anywhere. Either way the media is encrypted end to end and never decrypted in the middle.

  • Offline / peer-to-peer

    Works with no internet at all, over your local network. Nothing leaves the room.

    • Always free

  • Online connection

    Reach your desktop from anywhere. Premium adds a relay for strict networks.

    • Free
    • Premium

  • Cloud storage

    Keep captures in one place and share them with a link. Premium raises the storage.

    • Free
    • Premium
Built for everyone

Perfect for any workflow.

  • Developers

    Explain bugs and review code.

  • Designers

    Share ideas and get feedback.

  • Educators

    Teach and present visually.

  • Content creators

    Record tutorials and demos.

  • Support teams

    Point at the fix, don't describe it.

Windows and Linux are coming

Drasyn ships for macOS today. Leave your email and we'll tell you once your platform is ready — one email, at release, nothing else.

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Ready to transform how you work?

Free and open source under the MIT licence. Install the host, scan a code, and draw.

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