Showing 101–120 of 1,000 ranked alternatives.
HIROAKI TSUKASHIMA
Make, read, play, and learn code
Create, read, and play code with this . Input text or type to generate codes. Interpret signals from light or sound. Take quizzes to practice decoding code strings. Learn through interactive exercises and feedback.
Kelvin Sherlock
Learn, practice, and send Morse Code
Learn and practice Morse code through interactive lessons and quizzes. Input text to convert to Morse, or decode messages. Track progress and test speed. Share results and challenge friends.
Sergey Vanichkin
Train and send code messages
Learn and practice code with modes for beginners and professionals. Practice listening comprehension and alphabet character recognition. Create text archives for classroom dictation exercises. Transmit LED-coded messages for encrypted communication.
沛然 丁
Send with flashlight or screen
Converts text to for messaging. Uses flashlight or screen to send signals. Includes a decoder for receiving messages. Supports letters, numbers, and symbols. Allows custom message creation and playback.
Paul Roden II
Shine, adjust, and control light
Provides a bright LED flashlight for illumination. It includes a strobing light mode for signaling. Users can adjust brightness levels and toggle between different light settings. The offers a simple interface for quick access to lighting functions.
Jason Torres
Tap to play sound effects
Play sound effects and by tapping buttons. Save selected sounds as , alarms, or text message alerts. Choose from grouped sounds. No installation required. Free to use.
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