ASCII/HEX converter

Text · decimal · hexadecimal · binary · URL

The ASCII / hexadecimal converter shows live HEX, DEC, BIN, and URL views of your input, with a per-character breakdown and reference modes for printable ASCII (32–126) and extended characters (128–255).

TEXT
Per-character table
Char DEC HEX BIN URL %enc HTML entity Description

How to use the converter

Paste or type in the main field: the tool auto-detects a hexadecimal byte sequence (pairs separated by spaces) or a list of decimal code points (space- or comma-separated). Otherwise the content is treated as plain text.

The summary rows show HEX, DEC, BIN, URL encoding, and reconstructed text; copy any value or use Copy all for the full block. The table lists each character with decimal, 8-bit binary (for values up to 255), percent-encoding, and the matching HTML entity when available.

ASCII 32–126 and Extended 128–255 modes show reference tables without changing your input. The HTML entities button shows or hides that column.