Tool to decode/convert ASCII control characters (all invisible characters 0 to 31 or 00-1F) from ASCII table.
ASCII Control Characters - dCode
Tag(s) : Informatics, Substitution Cipher
dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
ASCII Control Characters
Convert from control characters
Control characters encoding
Answers to Questions (FAQ)
What is an ASCII control character? (Definition)
ASCII control characters are a range of characters (0 to 32 + 127) designated as control characters to command special actions, such as page layout (tab, new line, etc.), handling errors, information separators (beginning/end of transmission), or to manage certain peripherals (often printers or the bell). These characters are generally invisible (because they cannot be printed).
What is the list of ASCII control characters?
The ASCII table defines 34 control characters:
| Code | Abbrev. | Full name | Symbol |
|---|---|---|---|
| 0 | NUL | Null | ␀ |
| 1 | SOH | Start of Header | ␁ |
| 2 | STX | Start of Text | ␂ |
| 3 | ETX | End of Text | ␃ |
| 4 | EOT | End of Transmission | ␄ |
| 5 | ENQ | Enquiry | ␅ |
| 6 | ACK | Acknowledge | ␆ |
| 7 | BEL | Bell | ␇ |
| 8 | BS | BackSpace | ␈ |
| 9 | HT | Horizontal Tabulation | ␉ |
| 10 | LF | Line Feed/New Line | ␊ |
| 11 | VT | Vertical Tabulation | ␋ |
| 12 | FF | Form Feed/New Page | ␌ |
| 13 | CR | Carriage Return | ␍ |
| 14 | SO | Shift Out | ␎ |
| 15 | SI | Shift In | ␏ |
| 16 | DLE | Data Link Escape | ␐ |
| 17 | DC1 | Device Control 1 | ␑ |
| 18 | DC2 | Device Control 2 | ␒ |
| 19 | DC3 | Device Control 3 | ␓ |
| 20 | DC4 | Device Control 4 | ␔ |
| 21 | NAK | Negative Acknowledge | ␕ |
| 22 | SYN | Synchronous Idle | ␖ |
| 23 | ETB | End of Transmission Block | ␗ |
| 24 | CAN | Cancel | ␘ |
| 25 | EM | End of Medium | ␙ |
| 26 | SUB | Substitute | ␚ |
| 27 | ESC | Escape | ␛ |
| 28 | FS | File Separator | ␜ |
| 29 | GS | Group Separator | ␝ |
| 30 | RS | Record Separator | ␞ |
| 31 | US | Unit Separator | ␟ |
| 32 | SP | Space | ␠ |
| 127 | DEL | Delete | ␡ |
How to encrypt using control characters cipher?
It is possible to denote control characters with their abbreviated name or their unicode symbol.
Any number between 0 and 32 can thus be encoded.
Example: 0 1 2 3 becomes NUL SOH STX ETX
It is possible to encode letters with a code like A1Z26.
Example: ABCD becomes 1 2 3 4 which is coded SOH STX ETX EOT
Source code
dCode retains ownership of the "ASCII Control Characters" source code. Except explicit open source licence (indicated Creative Commons / free), the "ASCII Control Characters" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or the "ASCII Control Characters" 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 "ASCII Control Characters" are not public, same for offline use on PC, mobile, tablet, iPhone or Android app!
Reminder : dCode is free to use.
Cita dCode
The copy-paste of the page "ASCII Control Characters" or any of its results, is allowed (even for commercial purposes) as long as you cite dCode!
Exporting results as a .csv or .txt file is free by clicking on the export icon
Cite as source (bibliography):
ASCII Control Characters on dCode.fr [online website], retrieved on 2024-05-04,
