Endgame Trainer is a free web application dedicated to endgame practice, covering a wide range of endgame types from elementary king-and-pawn endings through rook endings, minor piece endings, and queen endings. Each exercise places you in a known theoretical endgame position and asks you to find the winning or drawing technique.

The training approach is active — you must play the moves against a resistant opponent rather than just watching a demonstration. Hints and explanations are available if you get stuck, and the site tracks which endgame types you have practiced. The collection covers the most important practical endings that every club player should know.

All content is free and no registration is required. Endgame Trainer is a focused, no-frills alternative to the endgame sections on larger platforms for players who want dedicated endgame practice.