Morse Code - Decode & Chat

Decode, send, and learn morse code — all with your phone's camera and flashlight. No internet required.

The only morse code app that combines real-time light decoding, flashlight transmission, and two-way chat.

▶ DECODE WITH YOUR CAMERA

Point your camera at any flashing light. The app samples brightness in real-time and translates the flashes into text. Adjustable threshold, zoom up to 10x, and exposure controls let you read a signal across a room, across a field, or in full darkness.

▶ SEND WITH YOUR FLASHLIGHT

Type a message and transmit it via flashlight or screen flash. 4 speed presets from 6 to 24 WPM. 24 quick-tap presets for emergency, status, navigation, and common phrases including SOS, Need Help, and I Am Safe.

▶ CHAT USING LIGHT

Two-way real-time conversation. One phone flashes, the other decodes. Messages appear in a chat interface with timestamps. Audio morse via speaker and microphone is supported too, for when line of sight isn't available.

▶ LEARN MORSE CODE

Practice with interactive quizzes in two directions: identify the code for a character, or the character from a code. Track accuracy, build streaks, and master every letter and number. Supports both international and Russian (Cyrillic) morse code.

▶ REFERENCE GUIDE

Complete morse code chart with letters A–Z, numbers 0–9, punctuation, timing rules, and an SOS reference.

Morse code numbers are always five symbols:

1 = ·–––– 2 = ··––– 3 = ···–– 4 = ····– 5 = ·····

6 = –···· 7 = ––··· 8 = –––·· 9 = ––––· 0 = –––––

The SOS distress signal is ··· ––– ··· — three short, three long, three short.

▶ BINARY PROTOCOL

Advanced error-corrected communication. Manchester encoding with CRC-8 checksums for reliable transfer even in noisy conditions. The app auto-detects whether an incoming signal is standard morse or a binary packet.

▶ SAFETY

Photosensitive epilepsy warning on every launch. Screen-only safe mode. Flash frequency is hardware-limited.

WHEN THIS IS USEFUL

★ When the internet is down, blocked, or unavailable

★ Hiking, in the mountains, and at sea

★ Emergencies and signalling for help

★ Anywhere with no cellular coverage

★ Learning morse code

★ Just as a genuinely interesting experiment

KEY FEATURES

★ Real-time camera-based morse decoding

★ Flashlight and screen transmission

★ Two-way light chat between phones

★ Audio morse via speaker and microphone

★ 4 speed presets (6–24 WPM)

★ 24 quick-tap message presets

★ Interactive learning with scoring

★ Latin and Cyrillic morse code

★ Error-corrected binary protocol

★ Works completely offline — no internet, no SIM, no account

★ No ads, no data collection

Light instead of signal. Works even in aeroplane mode.