⦿ Bayeselo-Elo rating is a freeware tool to estimate Elo ratings.
⦿ Deep-position-analysis ( allow a deeper analysis.)
⦿ PGN to EPD converter with best move
⦿ PGN-extract (A Portable Game Notation (PGN) Manipulator for Chess Games)
⦿ Export CTG to polyglot and other formats.
⦿ josé is a graphical Chess tool
⦿ Kvetka (Let's create our own opening book.)
⦿ Multiple-move-Epd-Analyzer/releases
⦿ Opening book conversion (OBK, ABK, BIN)
⦿ Ordo ( is a program to calculate ratings of individual chess engines (or players)
⦿ PolyGlot WBD BIN Book Maker By: Khalid Omar
⦿ JJa - a command line utility to interact with various chess file formats.
⦿ openingRate- Tool to get the book's moves rate of a polyglot BIN book on an opening
⦿ Norm's 40H Chess Tools and Databases
⦿ ELOcalc