Emoji, Morse, Caesar, Custom Key

Secret messages, made playful.

Encode love notes, plans, and inside jokes into emoji, Morse code, Caesar cipher, or your own private key. Decode anytime from the app or custom keyboard.

Try online Keyboard setup

No account needed Custom keyboard Multilingual

Emoji Morse Caesar Custom Key

Quick start

This guide shows how to choose an encoding mode, convert text, install the keyboard, decode copied text, and keep your messages understandable.

Open EncodeKey and choose your language.

Choose the language you are typing. The keyboard also keeps English available so switching stays simple.

Pick Emoji, Morse, Caesar, or Custom Key.

Choose the right mode

Type your message and tap Convert.

Copy, share, save, or decode it later.

Decode

Yes. Copy encoded text first, open the EncodeKey keyboard, then tap Decode.

Set up the custom keyboard

Use EncodeKey directly inside your conversations. Convert, decode from copied text, and switch modes without leaving the keyboard.

1 Add keyboard Open iOS Settings, go to General, Keyboard, Keyboards, then add EncodeKey.

2 Enable Full Access Full Access allows shared app settings, selected language, selected mode, and clipboard decode.

3 Open any chat Switch to EncodeKey from the globe key, type normally, then tap Convert or Decode.

1 Add keyboard

2 Enable Full Access

3 Open any chat

Emoji Morse Caesar Custom

Choose the right mode

This guide shows how to choose an encoding mode, convert text, install the keyboard, decode copied text, and keep your messages understandable.

em nhớ anh 💌 🧠 ❤️

Emoji

Best for playful messages, love notes, casual chats, and expressive secret text.

Best for: love notes, inside jokes, friendly secret messages.

SOS ••• — — — •••

Morse

Best for classic code, learning, puzzles, and short hidden messages.

Best for: classic codes, puzzles, learning, short hidden notes.

hello khoor

Caesar

Best for simple cipher text with a predictable letter shift.

Best for: simple cipher text with predictable letter shifting.

key: moonlight 🔒 private code

Custom Key

Best when you want a personal phrase/key to transform messages your own way.

Best for: personal rules shared only with people you choose.

Learn the codes

Understand each encoding style before you use it.

EncodeKey supports playful emoji messages plus classic text ciphers. The website demo is intentionally lightweight; the iOS app has the full keyboard experience.

🙂

Emoji

Emoji maps common words and meanings into playful symbols. It is best for casual secret notes, love messages, and inside jokes.

•••

Morse

Morse is a standard dot-and-dash code for letters and numbers. It is great for puzzles, learning, and classic hidden messages.

A→D

Caesar

Caesar shifts letters by a fixed number. It is simple, predictable, and useful when you want a quick cipher.

🔑

Custom Key

Custom Key uses your private phrase to transform letters. Share the key only with the people who should decode it.

Try online

Encode and decode a sample message here.

Morse, Caesar, and Custom Key run fully in your browser. Emoji uses a small sample dictionary; download the app for the full multilingual emoji engine.

Emoji Emoji demo supports a small set of common English and Vietnamese words.

Encoding mode Your text

Result

How decode works

If a message was encoded from your history, EncodeKey prioritizes that exact result. If not, it decodes based on the selected mode and language.

Can the keyboard decode copied text? Yes. Copy encoded text first, open the EncodeKey keyboard, then tap Decode.

Why does the keyboard ask for Full Access? iOS requires Full Access for a keyboard extension to share settings with the main app and read clipboard text when you tap Decode.

Multilingual

Encode anywhere you type.

Use EncodeKey directly inside your conversations. Convert, decode from copied text, and switch modes without leaving the keyboard.

English Tiếng Việt 日本語 한국어 ไทย Indonesia Melayu Español Français Deutsch Português

Common questions

Why does the keyboard ask for Full Access?

iOS requires Full Access for a keyboard extension to share settings with the main app and read clipboard text when you tap Decode.

Can the keyboard decode copied text?

Yes. Copy encoded text first, open the EncodeKey keyboard, then tap Decode.

Which language should I choose?

Choose the language you are typing. The keyboard also keeps English available so switching stays simple.

Can I encode and decode on the website?

Yes. The website includes a lightweight browser demo for Morse, Caesar, Custom Key, and a small Emoji sample. The iOS app provides the full emoji dictionary and custom keyboard.