• word counter
• tagchecker
• loconvert - convert files to .csv or .xlsx
• rtf2csv - convert .rtf to .csv
• Visual Novel like Reader
• tofu checker
• sed - Stream Editor (e.g. br to newline)
• tsv2project, csv2project - convert .tsv or .csv to .project
• wwcount - csv to weighted word count

Obsolete tools

• xtagchecker