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ALT-Codes

Tool to convert ALT Codes. ALT-Codes are used to describe ALT key combination on the keyboard generating ASCII text or Unicode characters, especially on Windows.

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ALT-Codes -

Tag(s) : Substitution Cipher

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# ALT-Codes

## ALT Code Converter

If the numbers are greater than or equal to 32, these are ASCII or Unicode codes

⮞ Go to: ASCII CodeUnicode Coding

## Converting to ALT-codes

If the numbers are greater than or equal to 32, these are ASCII or Unicode codes

⮞ Go to: ASCII CodeUnicode Coding

## Answers to Questions (FAQ)

### How to encrypt using ALT-Codes

Encryption with AltCodes (ALT = alternative) consists in replacing numbers (between 1 and 31) with their graphic equivalent ALT Code. Letters can be replaced by numbers (A=1, B=2, etc.) before encoding.

Example: DCODE corresponds to 4,3,15,4,5 that is encrypted ♦♥☼♦♣

The full alphabet is:

1 2 3 4 ☺ ☻ ♥ ♦ ♣ ♠ • ◘ ○ ◙ ♂ ♀ ♪ ♫ ☼ ► ◄ ↕ ‼ ¶ § ▬ ↨ ↑ ↓ → ← ∟ ↔ ▲ ▼ ⌂

Not to be confused with the functionality of operating systems that can use a key combination with ALT to write characters according to their ASCII or Unicode code. (In this case the numbers are greater than 32)

### How to decrypt ALT-Codes?

Decryption consists in replacing coded-characters by their corresponding number. Between 1 and 26, it is possible to convert them to letters.

Example: ♦♥☼♦♣ for 4,3,15,4,5 that is DCODE (A=1, B=2, etc.)

### How to find the ALT+ code of a symbol or a letter?

ALT-Code generally has the number of their associated character in ASCII or Unicode nomenclatures.

### Where do these ALT characters come from?

These characters comes from ASCII code page 437 and 850 from IBM, reused in Windows as ALT-Code, it allows writing characters that are not on a keyboard.

### Why is it limited to 31?

Numbers between 32 and 128 are the usual ASCII characters. dCode has a tool to convert ASCII codes.

### How to (de)cipher other numbers?

Place cursor into a text area, hold the ALT key, type the code number with the keypad, release ALT key. It is possible to obtain any Unicode characters with this technique.

### When ALT-Codes have been invented?

ASCII table is born in 1986, graphic characters were added shortly afterwards.

## Source code

dCode retains ownership of the "ALT-Codes" source code. Except explicit open source licence (indicated Creative Commons / free), the "ALT-Codes" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or the "ALT-Codes" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "ALT-Codes" are not public, same for offline use on PC, tablet, iPhone or Android !
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## Need Help ?

Please, check our dCode Discord community for help requests!
NB: for encrypted messages, test our automatic cipher identifier!

## Questions / Comments

Thanks to your feedback and relevant comments, dCode has developed the best 'ALT-Codes' tool, so feel free to write! Thank you!

Source : https://www.dcode.fr/alt-codes-converter
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