Light · Text → Flashes
Morse Code Flashlight
A Morse code flashlight is a tool that blinks a light in the rhythm of Morse code. Type a message or pick SOS, and your screen or phone torch flashes it: short flashes for dots, long flashes for dashes.
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- Short · long
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- Short flash
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- One round
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Full-screen mode needs this tab in front. The torch works in Chrome on most Android phones.
Choose Full screen for the brightest signal from a laptop, or Phone flashlight on Android Chrome. Press Esc to stop.
Our flashlight sends at 3–20 words per minute, repeats until you stop it, and offers red light to protect night vision. It shows how many flashes and how long one round takes.
01
What Is a Morse Code Flashlight?
A Morse code flashlight is a light signal that turns each dot into a short flash and each dash into a flash 3 times longer. Darkness between flashes separates symbols, letters and words, just like silence in sound.
Navies have used flashing signal lamps since the 1860s. Light travels silently and is visible for miles at night, which makes it ideal for emergencies.
Watch a message as light
Pick a message to flash it on the lamp. Lower the speed for distant viewers.
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- Signal on
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02
How to Flash SOS With a Light
To flash SOS, send 3 short flashes, 3 long flashes and 3 short flashes, then pause and repeat. Send it as one continuous pattern without letter gaps, and keep the long flashes 3 times longer than the short ones.
Slow is better than fast: at 6–8 WPM each short flash lasts 150–200 ms, which observers recognise easily.
The SOS light pattern
3 short
Three short flashes for S: on-off, on-off, on-off.
03
Lights You Can Signal Morse Code With
You can signal Morse code with any light you can switch quickly: a phone screen, a phone torch, a flashlight, car headlights or a signal mirror. Brighter and narrower lights carry farther.
This tool controls the screen everywhere and the phone torch on browsers that allow it, mainly Chrome on Android.
Signal lights compared
| Light | Typical range at night | Notes |
|---|---|---|
| Phone screen | Up to 500 m | Works everywhere; use white at full brightness |
| Phone torch | 1–2 km | Android Chrome; best range from a phone |
| LED flashlight | 2–5 km | Point it straight at the observer |
| Car headlights | Several km | Use high beams and keep flashes slow |
| Signal mirror | Over 15 km in sunlight | Daylight only; aim with your fingers |
04
Signalling Tips for Real Emergencies
In a real emergency, call your local emergency number first, then use light to show rescuers where you are. A flashing SOS helps searchers find you, but it does not replace a phone call or a personal locator beacon.
Save battery by flashing in rounds — for example 1 minute of SOS every 5 minutes — and send toward the most likely direction of help.
5 rules for emergency light signals
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1 Call first
A phone call or locator beacon reaches rescuers faster than any light signal.
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2 Go slow
Use 5–8 WPM. Distant observers miss fast, short flashes.
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3 Aim the light
Point the torch or screen toward roads, boats, aircraft or search lights.
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4 Use red in the dark
Red light keeps your night vision; switch to white when you see a searcher.
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5 Save power
Flash in rounds and lower your screen timeout to keep your phone alive.
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More Morse Code Tools
Every tool below works the same way: give it input, get Morse code or text back. Switch tools without losing your place.
- 01 · Translate Text to Morse Code Convert any text into dots and dashes, in 4 output formats. Open tool
- 02 · Translate Morse Code to Text Decode dots, dashes, di-dahs or binary back into plain text. Open tool
- 03 · Sound Morse Code Audio Generator Turn text into a downloadable Morse code WAV file. Open tool
- 04 · Sound Morse Code Audio Decoder Upload or record beeps and read the message as text. Open tool
- 05 · Light & vision Morse Code Image Translator Read dots and dashes from a photo, or turn text into a Morse image. Open tool
- 06 · Tap & type Morse Code Tapper Tap out Morse with your finger and see it decoded live. Open tool
- 07 · Light & vision Morse Code Light Decoder Hold a button while a light is on and read the message. Open tool
- 08 · Light & vision Morse Code Camera Scanner Point your camera at a blinking light and read it live. Open tool
- 09 · Translate Live Morse Code Translator Every key you press is sent as Morse the moment you type it. Open tool
- 10 · Tap & type Morse Code Keyboard Type with two keys — dit and dah — with live letter prediction. Open tool
- 11 · Learn Morse Code Practice Koch-method copy practice with real-speed code groups. Open tool
- 12 · Learn Morse Code Quiz Test yourself in 4 quiz modes with timers and streaks. Open tool
- 13 · Light & vision Morse Code Video Translator Decode blinking lights or beeps in a video, or make a Morse video. Open tool
- 14 · Learn Morse Code Game Race the clock in 60-second Morse Sprint rounds. Open tool
- 15 · Learn Learn Morse Code A 5-stage path from your first letter to real copy. Open tool
FAQ
Frequently Asked Questions (FAQs)
How do I use my phone flashlight for Morse code?
To use your phone flashlight, choose Phone flashlight (torch), type your message and press Start flashing, then allow camera access. Torch control works in Chrome on most Android phones.
Does the torch mode work on iPhone?
No, iPhone browsers do not let websites control the torch. On iPhone, use Full screen mode at full brightness, which flashes the whole display.
What is SOS in flashlight Morse code?
SOS is 3 short flashes, 3 long flashes and 3 short flashes (··· −−− ···), sent without pauses between the letters and repeated.
How far can a flashlight Morse signal be seen?
A bright LED flashlight can be seen 2–5 km away at night, and a phone screen up to about 500 m. Range drops in rain, fog and city light.
What speed should I flash Morse code at?
Flash at 5–8 WPM for people far away, which makes each short flash 150–240 ms long. Faster speeds blur together at a distance.
Why use red light for Morse signals?
Red light protects night vision for both you and nearby observers. Switch to white for maximum range once someone is looking for you.