Morse Code: Offline Chat

Chat with another phone using only light or sound — no signal, no data, no accounts.

Decode, send, and learn morse code — all with your phone's camera and flashlight.

Morse Code - Decode & Chat is the only app that combines real-time light decoding, flashlight transmission, and two-way chat into one tool. No internet needed.

DECODE Point your camera at any flashing light source to decode morse code in real-time. Adjustable brightness threshold, zoom up to 10x, and exposure controls let you decode signals from across the room or across a field.

SEND Type any message and transmit it via flashlight or screen flash. Choose from 4 speed presets (6 to 24 WPM). Quick-tap emergency presets include SOS, Need Help, I Am Safe, and more.

CHAT Have a real-time two-way conversation using light. One phone sends via flashlight while the other decodes with its camera. Messages appear in a familiar chat interface with timestamps. Also supports audio morse via speaker and microphone.

LEARN Interactive practice mode with two game types: identify the morse code for a character, or identify the character from morse code. Track your accuracy, build streaks, and master all 36 characters.

REFERENCE GUIDE Complete A-Z and 0-9 morse code chart, timing rules, tips for best results, and SOS signal reference. Everything you need in one place.

ADVANCED: BINARY PROTOCOL The only morse app with an error-corrected binary protocol. Manchester encoding with CRC-8 checksums ensures reliable data transfer even in noisy conditions. Auto-detects whether incoming signals are standard morse or binary packets.

SAFETY FIRST Built-in photosensitive epilepsy warning on every launch. Screen-only safe mode available. Flash frequency is hardware-limited for safety.

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: Slow, Medium, Fast, Pro • 24 quick-tap message presets • Interactive learning with scoring • Binary protocol with error correction • Works completely offline • No ads