Choose today’s session

Seven doors into better CW.

Begin with structured lessons or jump directly into callsigns, speed, pressure and conversation. Each tool runs in your browser.

Advanced Morse Trainer callsign session
02 / PRACTISEPaddle capable!

Advanced Trainer

Move into groups, words and callsigns with detailed RX and TX analysis.

Balloon Burst Morse game
03 / PLAYPaddle capable!

Balloon Burst

Recognise characters, words or callsigns before the balloons stack up.

CW Summit speed-climbing game
04 / CLIMBPaddle capable!

CW Summit

Hold your accuracy while the speed rises. Chase camps, streaks and your ghost run.

RufzXP TX callsign-copy trainer
05 / COMPETEPaddle capable!

RufzXP TX

Copy real callsigns at adaptive speed by keyboard, or key them back with your paddle.

Pileup Trainer simultaneous-callsign copying session
06 / OPERATE

Pileup Trainer

Pull callsigns out of overlapping signals with realistic fists, fading and contest pressure.

Real Morse. Real people.
MorseChat with decoded CW, room participants and the on-screen paddle
Example room · current web interface
07 / CONNECTPaddle capable!

MorseChat

Call CQ, meet other operators or practise together. Your next CW QSO starts here.

  • Live decodingFollow the Morse and reveal the decoded text.
  • Screen keyKey with touch, mouse or keyboard.
  • Hardware keyUse your key or paddle with OpenShack Box or a supported keyer.
  • 1:1 CW keying relayYour own dots, dashes and spacing, relayed live.
  • Public & private chatJoin public rooms or invite an OP to a separate QSO room.
  • Class & teacher optionsTeacher transmits, students listen. Hide text for copying practice.

Included in the mobile Morse Trainer app for iOS and Android.

Seven browser tools · open now

Free Morse code
and CW training online.

Hear it. Key it. Keep climbing.

Learn Morse code from your first character, sharpen real CW operating skills and chase your next personal best—all online and free. Use your keyboard or connect the paddle already on your desk.

No installationKeyboard or paddleProgress stays yours
OPENSHACK / CWREADY
CURRENT24 WPM
ACCURACY96%
01Learn by sound
02Build operating skill
03Measure every run
04Meet operators live

Free CW training in your browser

Learn Morse code.
Train for real contacts.

OpenShack combines a structured online Morse code trainer with advanced receiving and sending practice. Start with Koch lessons, then work on character groups, words, callsigns, timing and paddle control at the speed that suits you.

When you want pressure, enter the free online CW competitions: climb CW Summit, copy real callsigns in RufzXP TX, separate stations in Pileup Trainer or play Balloon Burst. Eligible runs can be published to the worldwide CW leaderboard.

From practice to the band

Copy the call.
Send it cleanly.

OpenShack CW trains both sides of a real QSO: copy what comes back, then answer with a paddle or straight key. Character spacing, word gaps and rhythm matter just as much as speed.

Your next run starts here

Put on the headphones.

Open Morse Trainer →