ASCII Code to Text Converter - Decimal, Hex, Binary, Octal

Q: Can I decode codes that have no separators?

Yes. Choose None as the separator and the tool splits the string at fixed widths, 2 characters for hex, 8 for binary and 3 for octal. Decimal needs a separator because its codes vary in length.

Q: What happens if a code is invalid?

You get a clear message pointing to the value that does not fit the chosen base, so you can fix it quickly instead of getting silent, wrong output.

ASCII codes

Text

Need the reverse? Text to ASCII code

Input format

Separator

Strip prefix

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About the ASCII Code to Text Converter

What is an ASCII to text converter?

Sometimes you're handed a string of numbers — 72 101 108 108 111 — and you need to know what they actually spell. An ASCII to text converter does exactly that: it takes those character codes and turns them back into readable words. Paste the numbers, tell the tool which base they're in and how they're separated, and the decoded text appears instantly.

It understands decimal, hexadecimal, binary and octal, and because it decodes full Unicode code points, it happily reconstructs accented letters, symbols and emoji — not just plain English. Everything is worked out in your browser, so even sensitive data stays with you.

How to Use This Tool

Paste your codes. Drop the numbers into the left box, or open a .txt file of them.
Choose the format. Tell the tool whether the codes are decimal, hex, binary or octal.
Match the separator. Space, comma, new line, a custom character, or "None" for fixed-width codes with no gaps. Add a prefix to strip (like 0x) if your codes have one.
Read the result. The text appears on the right — copy it or download it as a file.

Quick reference

Code (decimal)	Hex	Binary	Character
72	48	01001000	`H`
101	65	01100101	`e`
108	6C	01101100	`l`
111	6F	01101111	`o`
33	21	00100001	`!`

Common Use Cases

Decoding data: Make sense of numeric character dumps from logs, packets or exports.
Reverse engineering: Read strings that were stored as code arrays in source or config files.
Puzzles & CTFs: Crack a message that was hidden as decimal, hex or binary.
Learning: Confirm your own by-hand conversions in seconds.

Need to go the other way? Use the Text to ASCII Converter. Decoding raw UTF-8 bytes rather than character codes? Try the UTF-8 Decoder.

Frequently Asked Questions

Is this ASCII to text converter free?

Yes, completely. No sign-up, no limits, and no watermark on anything you copy or download.

Which input formats are supported?

Decimal, hexadecimal, binary and octal. You can separate the codes with spaces, commas, new lines or a custom character, and strip a prefix such as 0x automatically.

Can I decode codes that have no separators?

Yes. Choose "None" as the separator and the tool splits the string at fixed widths — 2 characters for hex, 8 for binary and 3 for octal. Decimal needs a separator because its codes vary in length.

What happens if a code is invalid?

You get a clear message pointing to the value that doesn't fit the chosen base, so you can fix it quickly instead of getting silent, wrong output.

Is my data processed on a server?

No. All decoding happens locally in your browser with JavaScript, so your codes and the resulting text never leave your device.