Unicode Converter/Input Tool is a Firefox extension that converts among character references (hex or decimal), HTML entities, and Unicode. Also view Unicode, values, and character descriptions in chart and optionally output to a textbox. Several preferences allow a great degree of customization including adding one's own DTD for use in entity conversions.
Please be aware that in the Unicode chart view, items like question marks (Firefox 2.0) or boxed numbers (Firefox 3.0) may appear in place of a desired character (and some characters will not or cannot be displayed at all). This is due to Firefox's own present limitations in displaying such characters. To find these, you could consult the images such as those at the official http://www.unicode.org/charts site.
· Firefox: 1.5 – 3.0a8
What's New in This Release:
· Allow custom DTD to be used when showing entities in chart instead of or in addition to predefined HTML entities.
· Minor: Moved "Show only ents" option to "Find Character or Range" area.