Morse Code Light Flasher - Visual Signal Generator

Flash Morse code as visual light signals. Simulate flashlight, lantern, or signal lamp. Adjustable speed and colors. Great for visual learning.

Signal Lamp

Click to test

Message

... --- ...

Settings

Speed: 15 WPM

Slow Fast

Light Color

Show current character

Loop continuously

Quick Reference

SOS: ... --- ...
OK: --- -.-
YES: -.-- . ...

NO: -. ---
HELP: .... . .-.. .--.
WAIT: .-- .- .. -

Dot (.): Short flash
Dash (-): Long flash (3x dot)
Space: Gap between letters

Morse Code Converter with Audio Playback…

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Frequently Asked Questions

Visual Morse uses light flashes instead of sound tones. A short flash represents a dot, a long flash represents a dash. Used historically with signal lamps, flashlights, and heliographs.

Watch for short vs long flashes. A dot is a quick blink, a dash is about 3x longer. Gaps between letters are longer than gaps between dots and dashes. Word gaps are longest.

Emergency signaling when sound won't travel (across valleys, at sea), military communications, survival situations, and for hearing-impaired individuals learning Morse.

Light can travel further in clear conditions, is visible when sound would be drowned out, and works when radio silence is required. Line-of-sight range can exceed audio range.

White or bright yellow for maximum visibility in daylight. Red preserves night vision. Choose based on conditions and distance.

Yes. Learn SOS (... --- ...) - three short flashes, three long flashes, three short flashes. This is the international distress signal understood worldwide.

A heliograph uses reflected sunlight to flash Morse code over long distances. Before radio, it was used for military communication over dozens of miles in clear conditions.

Yes. The flasher works on any device with a screen. On smartphones, you can use it to signal with your screen light, though a real flashlight app would be brighter.

Fullscreen mode maximizes brightness and visibility. Use it when actually signaling someone at a distance. The entire screen becomes the signal light.

Yes. Just like audio Morse, timing distinguishes dots from dashes. Standard timing: dot = 1 unit, dash = 3 units, symbol gap = 1 unit, letter gap = 3 units, word gap = 7 units.

Signal Lamp

Message

Settings

Quick Reference

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