wReplace

Free program, which allows you to change/replace multiple letters and phrases at a time.
It is easy to create and save lists of changes/replacements, so that you can reuse them.
You can even paste replacement table from your spreadsheet (e.g. Excel/Calc).
wReplace resembles Notepad. Like Notepad, it works with plain text Unicode files.
Applications:
* Character conversion - changing one set of characters into another. Also, removing diacritics (accents).
* Romanization (latinisation) - conversion of a text written in a non-Roman alphabet into Roman alphabet.
* Transliteration - writing down a text (or a word) written in one alphabet with letters of another alphabet.
* Cyrillization - conversion of a text written in a non-Cyrillic alphabet into Cyrillic alphabet.
* Transcription (phonetics, phonemics, phonemic orthography) - writing down phonemes of a spoken language, so that you can reproduce them later. Also, you may write down phonemes of one language using letters of another.
* Simple substitution cipher (e.g. ROT13, ROT47).
* Morse code conversion.
Remove Diacritics:
wReplace is an excellent tool for national characters conversion into standard set of ASCII characters. This is useful because many programs do not correctly display non-ASCII national characters; for example, programs which display film subtitles sometimes have this problem. The change/replacement is run according to a pattern (Diacritic to ASCII) available in the program.
Learning languages:
wReplace is useful for language learning. It allows you to convert between different notations/writing systems, and to approximately phonetically transcribe text. Possible applications:
* Japanese, text conversion both ways: Romaji - Hiragana, Romaji - Katakana, Katakana - Hiragana.
* Russian; Cyrillic, conversion into Latin phonetic transcription ISO 9-1995.
wReplace can be used free of charge.