How does this Encoder/Decoder work?
With this website you can create and read secret messages. It is a simple way to encrypt text (make it unreadable) and decrypt it (make it readable again), as long as you have a secret key. Here is a simple explanation:
What does it do?
You can type a message and encrypt it with a secret key (another text). The encrypted message looks like gibberish, but someone with the same key can make it readable again. This is useful for sending messages that only people with the key can understand.
How to use the Encoder (second tab)?
- Enter your message: Type in the first field the message you want to encrypt, for example: "This is a secret message".
- Choose a key: Type in the second field a secret key, such as "mykey123". You can also upload a text file with a longer key, for example a piece from a book. The key is split in two for extra security.
- Encrypt the message: Click the "Encode" button. The encrypted message appears in the third field. This message looks strange and can only be decrypted with the secretly shared string.
- Copy the result: Click the "Copy" button in the third field to copy the encrypted message and share it with someone who has the key.
How to use the Decoder (third tab)?
- Paste the encrypted message: Paste the encrypted message in the first field of the Decoder tab.
- Enter the same key: Type or upload the same key used for encoding in the second field.
- Decrypt the message: Click the "Decode" button. The original message appears in the third field, for example: "This is a secret message".
- Copy the result: Use the "Copy" button to copy the decrypted message.
Why a key?
The key is like a password. Only someone with the same key can make the encrypted message readable again. Without the key, the message is unreadable. Make sure you share the key safely with the person who needs to read the message, for example via another secure method like a private message.
Handy tips:
- Use a long or unique key for extra security.
- If you use a text file as a key, make sure both people have the same file.
- You can copy the encrypted message and send it via email or chat, for example.
- If decoding doesn't work, check if you are using exactly the same key as when encoding.
Have fun sending secret messages!