Research Tools
A suite of web-based utilities designed for chess data analysis. Clean PGNs, calculate Elo probabilities, and visualize game trees directly in your browser.
PGN Cleaner
Upload raw PGN files to strip comments, normalize headers, and remove games under a specific move count. Essential for preparing engine datasets.
Launch ToolPGN to CSV Converter
Browser-based converter to flatten PGN game data into CSV format for easy import into Excel, Python Pandas, or R.
Launch ToolElo Calculator
Calculate expected score and rating change based on FIDE or Glicko-2 formulas. Includes performance rating estimator.
Launch ToolOpening Explorer Pro
Advanced opening tree that filters by player rating range. See what 1500s play vs what 2500s play in the same position.
Launch ToolMore tools are currently in development.
Contribute on GitHub