Binary / ASCII / Hex / Base64

Convert text between ASCII, Binary, Hex, and Base64 representations.

Converter Numbers & Math Updated Apr 19, 2026
How to Use
  1. Type in any row; all others update live.
  2. Separators (spaces, commas) are ignored.
Formats
Info

Notes

ASCII
UTF-8 text
Binary
8 bits per byte
Hex
2 chars per byte
Base64
4 chars per 3 bytes
Decimal
Byte values 0-255
Separators
Whitespace, commas ignored

Frequently Asked Questions

Which encoding?

UTF-8 for ASCII column — supports unicode.

Common Use Cases

Decoding

Paste raw bytes, read ASCII.

Encoding

Convert a word to any format.

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