Best way to convert text files between character sets?

Question

What is the fastest, easiest tool or method to convert text files between character sets?

Specifically, I need to convert from UTF-8 to ISO-8859-15 and vice versa.

Answer 1

Try EncodingChecker

EncodingChecker on github

File Encoding Checker is a GUI tool that allows you to validate the text encoding of one or more files. The tool can display the encoding for all selected files, or only the files that do not have the encodings you specify.

File Encoding Checker requires .NET 4 or above to run.

For encoding detection, File Encoding Checker uses the UtfUnknown Charset Detector library. UTF-16 text files without byte-order-mark (BOM) can be detected by heuristics.