Free Developer Tool
ASCII Text Converter
Convert text to ASCII codes and ASCII codes back to text instantly in your browser. Supports decimal, hexadecimal, octal, and binary representations with custom separators and live character tables. No uploads to any server, completely private.
Text Input
Converted 13 characters to 13 ASCII codes in Decimal format.Live
13Characters
13Codes
13Printable
0Control
0Issues
How to use the ASCII Text Converter
Choose Text to ASCII mode to convert any typed or pasted text into ASCII codes, or ASCII to Text mode to decode codes back into readable characters
Select a Number Base to control the output format: Decimal for standard codes like 72 101 108, Hexadecimal for 48 65 6C, Octal, or Binary
Pick a Separator to control how codes are joined in the output: space, comma, comma with space, dash, or one code per line
Enable Show Base Prefix to automatically prepend 0x before hex values and 0o before octal values in the output
In ASCII to Text mode, click Auto-detect Base to automatically identify whether your input uses decimal, hexadecimal, octal, or binary encoding
Click Swap to instantly move your current output into the other mode's input field and reverse the conversion direction
Use the Character Table tab to see a full per-character breakdown of every code in your input across all four number bases simultaneously
Open the ASCII Reference tab to browse the complete 128-character ASCII table showing decimal, hex, and character name for every code
Check the Issues tab when decoding to see which tokens were invalid or fell outside the standard ASCII range of 0 to 127
All conversion happens locally using pure JavaScript with no third-party libraries. Your data is never uploaded to any server
