CONVERTCP
Text File Codepage Converter for the Windows command line
This command line utility is a codepage converter to be used to change the character encoding of text. It fully supports charsets such as ANSI code pages, UTF-8, UTF-16 LE/BE, UTF-32 LE/BE, and EBCDIC. It's designed to convert big text files, too. It runs on Windows XP onwards (tested on XP, Windows 7, Windows 8.1, Windows 10, and Windows 11). The "readme.txt" file and the Wiki gives you some more information.
You'll find the compiled tool for 32 bit (x86) and 64 bit (x64) Windows...