Use the free tool above, then read on for how it works, a worked example, and practical tips.
What this tool does
Hearing your own words turned into Morse makes the code feel real in a way a printed chart never does. This player takes any text you type, shows its Morse form, and plays it as tones in your browser, so you can practise copying, test a callsign, or share the sound of a message with a friend.
How it works
The player converts each letter and digit with the standard Morse alphabet and plays it with the Web Audio API, using a dit of 1200 divided by your words-per-minute speed in milliseconds and a dah three times as long. Element gaps, letter gaps, and word gaps follow the same standard timing, so what you hear matches what a real operator would send.
How to use it
- Enter your values in the boxes above.
- Press the calculate or play button.
- Read the result shown below the tool.
- Try a second set of values to compare options.
Worked example
Type SOS and you will hear three short beeps, three long beeps, and three short beeps, with the standard gaps between them. At 15 words per minute the whole distress signal takes just over two seconds, while at 5 words per minute it stretches to about seven seconds, which shows how much speed changes the feel of the same message.
Practical tips
Start at a slow speed and follow along with the Morse shown on screen, then hide the text and copy by ear alone once the common letters feel familiar. Pick a tone pitch near 600 hertz for comfortable listening, and keep practice texts short at first, because long texts at high speed tire beginners quickly.
Common mistakes
A common mistake is typing punctuation and symbols the player cannot convert and then wondering why part of the message goes silent, so stick to letters, digits, and spaces. Another is practising only at one speed, which leaves you lost when a real station sends slower or faster than your practice setting.
Questions and answers
Is this tool free? Yes. It runs in your browser, needs no account, and gives instant results.
Do I need to install anything? No. The tool works on any modern phone or computer browser.
How accurate are the results? The maths follows the standard formulas shown above. Real-world results vary with terrain, equipment, and conditions, so use the figures for planning.
Can I use it on my phone? Yes. The tool is designed to work on a phone screen, so you can use it at the operating desk, in the field, or at a club station without a computer.
Who uses this tool
Radio amateurs, students, and club members all use tools like this one, because they turn a formula from a book into an answer for your own station in seconds. Beginners use it to check homework and first setups, while experienced operators use it to sanity-check a plan before spending money on cable, masts, or antennas. Even a quick check can prevent a costly mistake, such as ordering the wrong cable length or aiming a beam in the wrong direction.
What to try next
- Run the tool with your real station values, not just the default numbers, so the answer means something for your setup.
- Change one input at a time and watch how the result moves, because that shows you which input matters most.
- Write the result in your station notebook next to the date, so you can compare later changes against a known baseline.
Safety note: this is an educational estimator only. Real transmissions need an amateur licence and must follow your local regulations, band plans, and power limits. Never transmit without the proper licence, and treat every result here as a planning guide, not professional or legal advice.
Versión en español: Reproductor de Audio de Código Morse de Texto – Escucha Cualquier Texto como Tonos CW