ASCII / Hex / Binary Converter

Convert text to ASCII codes, hex, binary, and octal with live encoding tables, delimiter options, and reverse decoding for debugging data formats offline.

Input text

ASCII / Decimal (charCodeAt)

72 101 108 108 111

Hex (toString 16)

48 65 6c 6c 6f

Binary (toString 2, padded 8)

01001000 01100101 01101100 01101100 01101111

Octal (toString 8)

110 145 154 154 157

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About the author

Written and maintained by the Tool4SaaS team. Every tool runs locally in your browser and is tested in-house for accuracy. Last updated: September 9, 2026.

Frequently asked questions

Decimal ASCII, hex (2-digit), binary (8-bit) and octal. Decode supports all four via radio selection.

Yes, charCodeAt and parseInt run locally.

Yes, it is free, works offline in your browser, and your data never leaves your device.

How to use ASCII / Hex / Binary Converter

Encode: Type text to see ASCII, hex, binary and octal.
Decode: Switch to Decode and paste codes to get text.
Copy: Copy any encoding.