Duplex

Call. Share. Help.

Private 1:1 calls, screen sharing, collaboration and remote assistance — from one link. No account, no install to join.

  • No account
  • Peer-to-peer media and data
  • Remote control only with temporary permission

What you can do

Live

Audio calls, optional camera and screen sharing, with a direct or relayed path shown honestly.

Collaborate

Send files peer-to-peer and point, use a laser or draw on the shared screen.

Assist

Ask to control a shared screen. The sharer approves a temporary, scoped session.

How it works

  1. Step 1

    Create a link

    Start a call. A random room link is generated in your browser.

  2. Step 2

    Send it

    Share the link with one person. The room holds two participants.

  3. Step 3

    Call, share, help

    Talk, share a screen, send files or request control.

Privacy and consent

  • Ephemeral rooms. A room is an unguessable link for at most two people. Nothing is stored after the call.
  • Peer-to-peer. Media, files and pointer data go directly between browsers. Servers only help you connect.
  • Explicit consent. Remote control needs a paired helper and an Allow click, and expires on its own.

Platform status

Browser calling
Modern Chromium-based browsers (tested); other browsers best effort
Native pointer Assist
macOS only — experimental
Keyboard control
Not available yet
Windows / Linux control
Not available yet