Listed below are 24 pages encoded in various forms of UTF-16 and UTF-32 with or without BOM. They're put up to test browser support of UTF-16 and UTF-32. UTF-8 version is available here. 24 combinations come from the following four criteria:

• With or without BOM(byte order mark)
• Big Endian or Little Endian
• UTF-16 or UTF-32
• MIME charset parameter emitted by the server, no tag, UTF-(16|32) or UTF-(16|32)(BE|LE). The server running at this site is configured to emit MIME charset parameter depending on the file suffix.

The content of these pages was just taken from an old test page I put up a long time ago for Korean testing and it's not at all comprehensive. Especially, it doesn't have any characters beyond BMP. I may add them later.

file	BOM	BE/LE	UTF-16/32	MIME charset in HTTP header
bom.utf16be.html	Y	BE	16	UTF-16BE
bom_utf16be.html	Y	BE	16	None
bom_utf16be.utf16.html	Y	BE	16	UTF-16
bom.utf32be.html	Y	BE	32	UTF-32BE
bom_utf32be.html	Y	BE	32	None
bom_utf32be.utf32.html	Y	BE	32	UTF-32
bom.utf16le.html	Y	LE	16	UTF-16LE
bom_utf16le.html	Y	LE	16	None
bom_utf16le.utf16.html	Y	LE	16	UTF-16
bom.utf32le.html	Y	LE	32	UTF-32LE
bom_utf32le.html	Y	LE	32	None
bom_utf32le.utf32.html	Y	LE	32	UTF-32
nobom.utf16be.html	N	BE	16	UTF-16BE
nobom_utf16be.html	N	BE	16	None
nobom_utf16be.utf16.html	N	BE	16	UTF-16
nobom.utf32be.html	N	BE	32	UTF-32BE
nobom_utf32be.html	N	BE	32	None
nobom_utf32be.utf32.html	N	BE	32	UTF-32
nobom.utf16le.html	N	LE	16	UTF-16LE
nobom_utf16le.html	N	LE	16	None
nobom_utf16le.utf16.html	N	LE	16	UTF-16
nobom.utf32le.html	N	LE	32	UTF-32LE
nobom_utf32le.html	N	LE	32	None
nobom_utf32le.utf32.html	N	LE	32	UTF-32