ChessInsights is a free web tool that analyzes Chess.com game histories and generates detailed performance reports. Enter a Chess.com username and the tool produces breakdowns of accuracy by time control, opening performance (win rates for each opening system you play), performance by time of day, and comparison statistics showing how your metrics compare to other players at your rating level.

The opening statistics section is particularly useful: it shows which of your openings are performing above or below average, helping you identify lines worth keeping versus those worth replacing. The interface is fast and the reports are visual and easy to interpret.

ChessInsights is entirely free and requires no account. It is the Chess.com equivalent of Opening Tree's game analysis approach, focused on statistics and trends rather than individual game review.