Morse Code Translator
Convert text to Morse code and decode Morse to text with audio playback and visual flash
Audio Controls
Morse Code Reference
Letters
Numbers
Punctuation
Test
Morse code is a time-tested method of encoding text as sequences of short and long signals -- dots and dashes -- that can be transmitted by sound, light, or radio. This online tool converts text to Morse code and back, with built-in audio playback so you can hear the familiar patterns firsthand.
What Is Morse Code?
Developed in the 1830s by Samuel Morse and Alfred Vail for the electric telegraph, Morse code assigns a unique pattern of dots and dashes to every letter, digit, and common punctuation mark. The International Morse Code (ITU) standard used today was finalized in 1865 and is still actively used by amateur radio operators, maritime distress signaling, and aviation navigation beacons. The universal distress signal SOS (... --- ...) remains internationally recognized.
How to Use This Tool
- Text to Morse -- type or paste your text in the left panel and the Morse code appears instantly on the right.
- Morse to Text -- switch to the Morse tab, enter dots (.), dashes (-), and spaces, and the decoded text appears automatically.
- Audio playback -- click Play to hear the Morse code at your chosen speed (WPM) and frequency (Hz).
- Download -- save the audio as a WAV file for offline use or for radio practice sessions.
Frequently Asked Questions
What is Morse code used for today?
Amateur (ham) radio operators use Morse code worldwide, and a CW (continuous wave) license endorsement is still offered by many national telecommunications authorities. Aviation NavAids such as VOR and NDB beacons transmit their identifiers in Morse code. The SOS distress signal remains internationally recognized. Some accessibility tools use Morse input for users with limited mobility.
Can I use this Morse code tool offline?
Once the page is loaded in your browser the converter works entirely in JavaScript with no server calls. You can save the page for offline use (Ctrl+S) and the text-to-Morse and Morse-to-text conversion will continue to work without an internet connection. Audio playback uses the Web Audio API, which is also available offline.
How fast can Morse code be transmitted?
The standard teaching speed is 5 words per minute (WPM). Casual operators typically exchange messages at 13-20 WPM. Competitive and top-speed operators can achieve over 60 WPM. The speed slider in this tool ranges from 5 to 30 WPM, covering the full range from beginner practice to intermediate-level copy speed.
Are there different Morse code standards?
Yes. International Morse Code (ITU) is the modern worldwide standard. American Morse Code (also called Railroad Morse) was the original variant used in landline telegraphy in the United States; it differs in spacing rules and some character encodings. This tool uses the ITU International Morse Code standard.
Can I customize the audio tone and playback speed?
Yes. Three settings are available: Speed (WPM) controls how many words per minute are transmitted; Frequency (Hz) sets the pitch of the tone (standard is around 600-700 Hz); Volume adjusts the output level. Changes take effect on the next playback.
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