V 0.1 · PRIVATE BETA

L I P I

Beam your strokes to any screen.

The missing layer between a hand and every display in the room. Draw on a tablet — any tablet — and watch every mark appear on a connected screen, in real time, with the latency of ink on paper.

↳ NO SPAM. ONE EMAIL WHEN WE OPEN.
✓ ON THE LIST. WE'LL EMAIL YOU.
01

Pixel-perfect by design.

Strokes land exactly where you draw. No calibration, no math. The iPad sees the literal pixels from the Mac — so a pixel on iPad is a pixel on Mac. Alignment is mathematical, not heuristic.

02

Any tablet. Any display.

Apple Pencil on iPad, Wacom on Android, S Pen on Samsung — into Mac, Windows, a projector, or three at once. The Lipi protocol doesn't care what hardware sits on either end.

03

Sub-80 millisecond everything.

Below the threshold where ink feels like a network request. WebRTC over LAN or USB. Sub-40ms over USB. No accounts, no cloud, no setup. Works on a plane, on a stage, in a classroom.

How it actually works.

Sixty seconds. Two URLs. The first stroke before the kettle boils.

1

OPEN ON MAC

Run Lipi on your Mac. Click START CAPTURE — pick a window, a tab, or your full screen.

2

OPEN ON IPAD

Open the same Lipi URL on your iPad. The Mac screen mirrors live, pixel-perfect.

3

DRAW

Apple Pencil meets glass. Every mark beams to the Mac in under 80 milliseconds.

4

RECORD

Point OBS, Loom, or QuickTime at the Mac display. Strokes are baked into the recording.

Two ways to use it.

Run it yourself for free, or let us run it for you across any network — no setup.

LIPI · LOCAL
FREE self-host
  • One Mac · one iPad
  • Local network only (Wi-Fi or USB)
  • Run with one terminal command
  • Source available to early supporters
REQUEST ACCESS →
▸ T H E P R E M I S E
Teaching should feel like thinking out loud. The moment a teacher picks up a stylus, every mark should appear — instantly, beautifully — on every screen in the room, on every device watching remotely, and in every recording ever made of that session.
— LIPI, FOUNDING PRINCIPLE