MorseModem
Messages vocaux secrets Morse
0 ratings
Free
About
Share secrets as voice memos. In Morse code.
MorseModem lets you send hidden messages through any messaging app. Type your text, encode it as Morse code audio, and share it as a regular voice memo. Only someone with MorseModem can decode it. To everyone else, it sounds like beeps.
Works with WhatsApp, iMessage, Signal, Messenger, and any app that supports voice memos.
ENCODE
Type a message and convert it to Morse code audio. Feel each dot and dash through haptic feedback as your secret takes shape. Share the result as a voice memo -- it blends right in.
DECODE
Received a Morse voice memo? MorseModem auto-detects the tones, calibrates the timing, and reveals the hidden message.
LEARN
New to Morse code? Browse the built-in guide covering letters, numbers, and punctuation. Tap any character to hear how it sounds.
PRIVATE BY DESIGN
- 100% offline -- no servers, no internet required
- No data collected
- No tracking
- No ads
- Open source
Your messages never leave your device. Nothing is stored, sent, or analyzed by us. Ever.
Available in English and French.
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What's New in MorseModem
1.1.0
May 11, 2026
Accessibility • Full VoiceOver support: all buttons, sliders, and controls now have descriptive labels and hints • VoiceOver announces when recording starts and stops, and when an audio file is imported • Morse code dot/dash output is hidden from VoiceOver to avoid noise • Dynamic Type: icons now scale with your preferred text size • Reduced Motion: recording animation is disabled when "Reduce Motion" is enabled in Accessibility settings • Improved contrast: placeholder text in the Decoder is now easier to read • Waveform display now uses both shape and color, so it remains meaningful without color
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