Send secret messages with ciphers
Send encrypted messages using historical ciphers like A1Z26, Caesar Shift, and Vigenere. Encrypt text with customizable settings. Share coded messages via text or email. Decode messages using the same methods. View details and instructions.
Showing 661–680 of 1,000 ranked alternatives.
Hudson Heavy Industries Ltd
Solve puzzles, crack codes, infiltrate systems
Learn cybersecurity through interactive missions involving code cracking, firewall bypassing, and network infiltration. Solve puzzles based on real-world techniques like steganography and encryption.
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.
Sam Skalicky
For BLE device development
Programmer tools for BLE device development. Interface with SparkFun Gateway via ESP32. Access and modify source on GitHub. Support for 1-channel communication protocols. Implement custom firmware updates.
Ronald Nicholson
Enter text using Morse Code.
The app allows users to enter text using Morse Code by tapping a knob. Users can adjust the Morse Code speed from 5 to 45 WPM and choose between straight key or iambic keying modes.
Tsukasa Yamanaka
Learn and practice morse code with adjustable
Learn and practice Morse code with WABUN and International codes. Adjust speed, frequency, volume, and sound waveform. Customize code length and timing. Generate training sequences from defined strings or letters.
Textable LLC
Send SMS and MMS messages
Send and receive text messages and multimedia messages through a business account. Manage contacts, schedule messages, and track delivery status. Integrate with email and calendar for scheduling. Support group messaging and message archiving.
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