iPhone setup
Add Encode Keyboard to iPhone
Add Encode Keyboard in iOS Settings, switch with the globe key, encode or decode the current line, and undo—without enabling Full Access.
Encode Keyboard Guides
Use text codes with confidence.
Step-by-step help for using Encode Keyboard, understanding what each codec changes, and knowing when a text transformation is—and is not—appropriate.
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iPhone setupAdd Encode Keyboard to iPhone
Install the app, enable its keyboard once in Settings, then switch to it from any supported text field. The setup takes about a minute and Full Access should remain off.
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From setup to understanding
Start with the problem in front of you or the codec you want to understand more deeply.
Troubleshooting
Custom keyboard not showing?
Check keyboard setup, the globe menu, secure fields, phone pads, and app restrictions. Encode Keyboard works without Full Access.
Morse guide
Use Morse code on iPhone
Translate text to International Morse, decode dots and dashes, and insert the result with an iPhone keyboard—plus Vietnamese diacritic rules.
Base64 guide
Is Base64 encryption?
Base64 is reversible text encoding, not encryption. Learn how UTF-8 bytes, the RFC 4648 alphabet, padding, and common decode errors work.
Binary & UTF-8
Turn text into UTF-8 Binary
Learn why Vietnamese letters and emoji use multiple UTF-8 bytes, then convert each byte to an 8-bit Binary group and decode it back to text.
Concept guide
Encoding, encryption, and hashing
Compare encoding, encryption, and hashing by purpose, keys, and reversibility—and learn why Base64URL, Base32, Hex, URL Percent, and other codecs are not security.
Learn
Want to practice instead?
The learning lab has worked examples, validation rules, primary references, and short quizzes for all 12 codecs.