Is This Message Remains Visible ?... :

Current Encoding Is Not Supported By This Calculator.

Possible To Select Other Encoding (That In A Frame Of 1 Byte) , From:
Browser's Menu: [View] > [Encoding].

Working With This Browser:
===========================
Encoding To Select, Type Of 1 Byte,
From The Browser Menu: [View]>[Encoding].
(Encodings That Are On The List Can Help),

*More Info:
Possible To Get More Details, Button: [(i)]
Also By Selecting An Encoding From The List At Left.

**Remark:
Choosing From Menu Encoding Else? (UTF):
This Page Is Not Responding \ Viewing "Gibrish" ?:
Just To Select From Browser Menu: 1-Byte-Encoding (ISO).

Writing Words In A Selected Encoding:
=================================
[W]: *First* Clicking At The- Write Button
Select Encoding-Available, Clicking At Chars's Table.
Signs & English Letters Can Be Embed (List, Buttons).

*Options:
[R]: Right To Left.
[D], [C]: Clearing Char/ All Chars.
[B], [I], Color: Bold, Oblique, Text Color.
(Some More And Also Some Help Available In Tooltips).

Looks Like Available For Most Browsers, Notes:
Netscape&Fire-Fox : Have The Largest Encodings List.
Internet-Explorer: Working With No Need Of Browser Menu.
Opera- I Matches But No Material (Like: [R] & Encoding Else).