ASCII to Text Converter
Convert ASCII code values back to readable text. Paste decimal, hex, binary, or octal codes and get the original characters instantly.
ASCII Codes Input
Text Output
What Is ASCII to Text Conversion?
ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns a number to each letter, digit, and symbol. For example, the decimal code 72 maps to the letter "H", and 65 maps to "A". When computers exchange raw data — through serial ports, log files, debugging output, or network protocols — they often represent characters as numeric codes. This tool takes those numbers and converts them back to readable text, which is useful when working with character encodings in web development, reverse-engineering binary protocols, or decoding data from legacy systems. You can paste codes in decimal (the most common), hexadecimal (used in hex editors and memory dumps), binary (one code per character), or octal (used in Unix file permissions and older systems). The converter auto-detects whether your values are separated by spaces, commas, or newlines, so you can paste in practically any format without extra cleanup. The optional character table below the result shows each code paired with its decoded character, giving you a quick visual reference — handy when debugging or teaching character encoding concepts. For a full reference table, check asciitable.com. The Unicode standard extends ASCII for international characters, and this tool correctly handles the full printable ASCII range (codes 32–126) as well as common control characters.
How to Use
Choose your input format
Select Decimal, Hex, Binary, or Octal depending on what format your codes are in. Decimal is the default and covers most cases.
Paste your ASCII codes
Type or paste your codes into the input box. Separate them with spaces, commas, or newlines — the converter handles all three automatically.
Read the result
The converted text appears instantly in the output panel. Toggle "Show character table" to see a code-by-code mapping. Copy or download the result when you're done.
Example
Here's a quick example of decimal ASCII codes being decoded to the word "Hello":
Decimal codes → Text
72 101 108 108 111→ Text Output
HelloCharacter mapping:
72 → H
101 → e
108 → l
108 → l
111 → oFAQ
What separators are supported?
The converter auto-detects spaces, commas, and newlines. You can also mix them — for instance 72,101 108 will still parse correctly. You don't need to clean up your input before pasting.
Can it handle hex codes like 0x48?
Yes. When Hex mode is selected, it accepts both plain hex values (48 65 6C) and values prefixed with 0x (0x48 0x65 0x6C). Both produce the same result.
What is the difference between ASCII and Unicode?
ASCII covers 128 characters (0–127) — the English alphabet, digits, punctuation, and basic control characters. Unicode extends this to over 140,000 characters covering virtually every writing system. For English text, the first 128 Unicode code points are identical to ASCII, so this tool works for both.
Why do I see a "?" or blank for some codes?
Codes outside the printable ASCII range (below 32 or above 126) are control characters without a visible glyph — things like newlines (10), tabs (9), and null (0). They're decoded correctly but may not render as visible text. Check the full ASCII table if you need to identify them.
Can I convert text back to ASCII codes?
Yes — use the companion Text to ASCII tool on this site. It converts any text to its numeric ASCII codes in any format.
Is this tool free and does it send my data anywhere?
Completely free, and all conversion happens in your browser — nothing is sent to a server. Your data stays on your machine. This is especially useful if you're working with sensitive debugging output or log data.