HTML Entities Encoder / Decoder

How it works

• Standard HTML encode — encodes only reserved HTML characters (<, >, &, ", ') and leaves other characters unchanged unless browser encodes them.
• Numeric encode — encodes:
  • All non-ASCII characters (code > 127) into &#NNNN;
  • Reserved HTML characters into entities (<, >, etc.)
• Works with emoji and supplementary Unicode characters (handles surrogate pairs).