Connect your telegraph key to the world. MoIP lets you practice, learn, and communicate in Morse code with operators across the globe — no radio license needed.
A 175-year-old language that transcends borders, cultures, and technology.
For 70 years, Morse was the only way to telecommunicate. Recognized by UNESCO as Intangible Cultural Heritage, it's an intercultural art form that transcends the barriers of time and space.
Morse code is surprisingly accessible. Whether you're a complete beginner or an experienced operator, tools like LCWO and the N0HFF method make learning enjoyable and effective.
With just dots and dashes, you can experiment with communication technology at minimal cost. From Arduino to Raspberry Pi — Morse code opens the door to hardware tinkering and digital communication.
The internet replaces the telegraph wire — everything else stays authentic.
MoIP uses the CWCom protocol, invented in 1998 by John Samin (VK1EME). Instead of streaming audio, it transmits only the timing between key presses — incredibly efficient. Combined with Les Kerr's open-source MorseKOB software and Bob Denny's relay server, any client on any platform can connect to any server.
Clients for every major operating system — all interoperable.
Run MoIP on a Duemilanove with W5100 Ethernet. A minimal, open-source Arduino implementation.
View on GitHub →
The original MorseKOB software by Les Kerr. Also available as MorseKOB 4.0 (Python) for cross-platform use.
Download →
A GPL-licensed C implementation. Works with serial and USB keys on Unix-like systems.
View on GitHub →
MoIP on your iPhone or iPad. Supports external Bluetooth keys via ble-morse.
View on GitHub →
The original CWCom software by John Samin (VK1EME) — the application that started it all in 1998. Also runs under Wine on macOS.
Download →
A Java applet version of MorseKOB by Les Kerr. Run it directly in your browser — no installation needed.
Try in Browser →Use a real telegraph key or paddle — serial, USB, or Bluetooth.
Circuit description for connecting your key (and optional sounder) via serial port. USB-to-serial adapters are supported.
Build Guide →
A professionally manufactured circuit board for key and sounder connections. Plug and play for both USB and serial ports.
Learn More →
Go wireless with Bluetooth Low Energy. Connect your key to the iOS app without cables.
View on GitHub →The next generation of Morse over IP.
A new protocol called MOPP (Morse over Packet Protocol) has been developed by the creators of the Morserino-32 — a versatile open-source Morse trainer and keyer. MOPP brings modern packet-based communication to the world of Morse code.
Join the global community of Morse code enthusiasts. Pick a client, connect to a server, and start tapping.