MorseLabBaseMorseLabBase

About MorseLabBase

Last updated: 17 July 2026

A browser Morse lab: translate first, train when you stay. International Morse with real audio, local progress, and no account wall.

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What this is

MorseLabBase is a free practice and translation site for International Morse. The homepage opens on a working Text ↔ Morse console. When one conversion is not enough, the same engine powers Koch / Farnsworth training, listening drills, keyer timing, charts, SOS / flashlight practice, shareable challenges, and Telegraph Desk scenarios.

Encode, decode, timing, and playback run in your browser. No signup and no cloud sync of practice text. The vocabulary is radio-practice plain: dits, dahs, WPM, Farnsworth, keyer.

What we optimize for

  • Most visitors want a translator with sound — that sits above the fold on home and on Translator.
  • When you want to learn, trainer, listen, and keyer are one click away.
  • Encode, decode, timing, and playback stay on-device. Trainer progress can live in localStorage.
  • Landings under /for/learn, /for/ham, /for/puzzle, and /for/visual change the map and CTAs for each audience.

Tool map

Every row is a live page:

Morse Code Translator - Text to Morse and Back
Text ↔ Morse, Play, WPM, pitch, copy
Morse Code Translator with Audio - Hear Your Message
Same engine, sound-first controls
Morse Code Trainer - Koch and Farnsworth Practice
Koch order + Farnsworth spacing
Morse Code Listening Practice - Copy by Ear
Copy groups by ear
Morse Code Keyer Practice - Send with Timing Feedback
Send timing feedback
Morse Code WPM Test - Check Your Copy Speed
Calibrated copy score (local)
Morse Code Alphabet - Letters Chart with Audio
A-Z chart you can hear
Morse Code Punctuation and Numbers Chart
Digits and common marks
Morse Code Prosigns - AR SK BT and Friends
AR, SK, BT, SOS patterns
Q Codes for Ham Radio - List with Morse Practice
Ham glossary with play
SOS Morse Code - Play the Distress Signal
Distress rhythm preset
Morse Code Flashlight - Blink Text as Light
Screen blink + optional vibrate
Morse Code Puzzle - Share a Decode Challenge
Shareable decode links (?c=)
Telegraph Desk - Morse Role Scenarios
Role scenarios with objectives

Boundaries

If you transmit, your license and band plan control. This site is a careful practice tool for timing and charts.

  • No radio club credit, VEC class, or license exam.
  • No emergency, aviation, or maritime certification — and no distress beacon.
  • No photo OCR or microphone decode-from-the-room in v1.
  • International Morse only — American Railroad charts that disagree are out of scope.

How we build

Timing and encode/decode run through a shared engine (Web Worker when available) so long sequences stay responsive. Audio uses Web Audio after a user gesture. Theme and trainer set size can persist locally. Production may register a service worker for offline shell assets; local development does not.

Details: Methodology. Data: Privacy. Rules: Terms.

Corrections & contact

Wrong chart cell, timing bug, or broken link? Use Contact — include the page URL and what you typed or heard.

The inbox address stays off footers to cut spam. Contact opens your mail client from this page.

Practice tool only. Audio stays in your browser — not a license exam or emergency certification.