Two simple tools that are helpful in everyday activity are shown below.
The first tool performs conversion from hexadecimal to decimal numbers and vice versa as well as conversion between characters and their UTF-8 codes. The input fields accommodate many codes simultaneously: numbers in code fields are delimited by space, characters follow with no gaps. The maximum value of a code field is ffff (hex) or 65535 (dec). Apart from this, while typing in the Chars field, the Key field shows the keycode of the last keyboard button pressed.
The second tool displays tables of UTF-8 codes (hexadecimal or decimal) next to the characters they represent. Each table holds 128 codes starting from a value set into the From field. Pressing the up and down buttons changes the displayed range of codes. Some frequently used UTF-8 ranges are directly loaded from the dropdown Range. The displayed fonts are chosen among the available system fonts from the dropdown Font.
Convert UTF-8 codes < > characters:
Hex: &#x; Dec: &#;
Utf-8 codes and characters:
Code Hex: From: Range: Font: