Dayon!

Spec sheet

Purpose

Dayon! is an open-source solution for watching and controlling a remote computer.Read 12 Oct 2026 · retgal.github.io

Intended users

Dayon! is designed for people who are new to computers and want to help family and friends remotely.Read 12 Oct 2026 · retgal.github.io

Free plan

YesRead 20 Sep 2026 · retgal.github.io

Security

The privacy statement says communications are encrypted by default and the software does not collect or share personal identifiable data with third parties.Read 12 Oct 2026 · retgal.github.io

Support

Users can post questions or open issues on GitHub.Read 12 Oct 2026 · retgal.github.io

License

The maker describes Dayon! as free software licensed under the GPL.Read 12 Oct 2026 · retgal.github.io

Founded

2008Read 28 Sep 2026 · retgal.github.io

Access mode

attendedRead 20 Sep 2026 · retgal.github.io

Bandwidth

It sends compressed, cached grayscale images to reduce network usage, with an option for color display.Read 12 Oct 2026 · retgal.github.io

Connection verification

The assistant and assisted computers display certificate fingerprints that should match to help detect man-in-the-middle attacks.Read 12 Oct 2026 · retgal.github.io

Connectivity

The assistant listens on port 8080 by default, and Dayon! can create a port-forwarding rule when UPnP is enabled.Read 12 Oct 2026 · retgal.github.io

File and clipboard transfer

Clipboard transfer supports text, files, and graphics between the assistant and assisted computers.Read 12 Oct 2026 · retgal.github.io

File transfer

YesRead 20 Sep 2026 · retgal.github.io

Integration

Users can start a joint Jitsi meeting from the session to chat with the remote peer.Read 12 Oct 2026 · retgal.github.io

Network traversal

Release 18 uses public STUN servers as needed and supports configuring private TURN/S servers.Read 12 Oct 2026 · retgal.github.io

Platform requirements

The download page provides Windows, Linux, and macOS packages; macOS requires Java JRE 11 or newer when needed.Read 12 Oct 2026 · retgal.github.io

Remote control

Remote control is off by default and can be switched on or off during a session.Read 12 Oct 2026 · retgal.github.io

Setup

The assisted computer connects as a client, so it does not need firewall, router, or NAT configuration.Read 12 Oct 2026 · retgal.github.io

Supported platforms

Windows,macOS,LinuxRead 20 Sep 2026 · retgal.github.io

Token privacy

The default token server stores a user's IP address for up to seven days after its last use; users can configure a self-hosted token server instead.Read 12 Oct 2026 · retgal.github.io

Plans and prices

Every Dayon! plan and price →

Where Specifiction places it

• Remote desktop software#87 of 1357.8