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Decimal to Text
Turn decimal character codes back into readable text.
Quick Tool Overview
Decimal to Text turns a row of numbers back into characters, and also recognises HTML numeric entities in both decimal and hexadecimal form — which makes it the tool for reading an obfuscated email address out of page source.
- What it does
- Decodes decimal codes into readable text
- You give it
- Numbers, or HTML numeric entities
- You get back
- The text those codes represent
- Best for
- Puzzles, log dumps and reading obfuscated markup
About the Decimal to Text
A row of numbers such as 72 101 108 108 111 is the most common form a character code puzzle takes, and the most common thing to find in a log file when something has dumped codes instead of characters. This turns them back into text.
Separators are flexible — spaces, commas, semicolons and line breaks all work — and HTML numeric entities such as A and A are recognised and decoded too, which is useful when you are trying to read an obfuscated email address out of page source. Values above 127 are read as Unicode code points, so accented characters and emoji decode correctly rather than failing at the edge of the ASCII table.
Key features of the Decimal to Text
HTML entities decoded
Both A and A forms are recognised, which is how addresses are hidden in page source.
Full Unicode range
Values above 127 decode as code points, so accented letters and emoji come back correctly.
Out-of-range values flagged
Codes above the Unicode maximum, or inside the surrogate range, are reported rather than producing a broken character.
Any separator
Spaces, commas, semicolons and line breaks all work in the same input.
Fixed-width splitting
Zero-padded runs with no separator can be decoded by giving the width.
How to use the Decimal to Text
-
1
Paste the numbers
Separated by spaces, commas or line breaks, or as HTML numeric entities.
-
2
Confirm the interpretation
Code points by default; switch to byte mode when the numbers are UTF-8 bytes.
-
3
Set a width for unseparated input
A solid run of digits can be split into equal groups when the codes were zero padded.
-
4
Read the text
The decoded characters appear immediately, with any out-of-range values reported.
Frequently asked questions
Yes, both the decimal form A and the hexadecimal form A. That makes it useful for reading an email address that has been obfuscated in page source.
They are read as Unicode code points, so 233 gives é and 128512 gives an emoji. ASCII stops at 127, but the numbering continues and this tool follows it.
Either it is above 1,114,111, which is the highest valid Unicode code point, or it falls in the surrogate range reserved for UTF-16 encoding. Both are reported rather than producing a broken character.
Only if they were zero padded to a fixed width. Without padding there is no way to tell whether "6597" is two codes or four, so the tool asks for a width rather than guessing.
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