ChessOnyx Membership

ChessOnyx keeps its core analysis completely free. Membership exists to support ongoing development and unlocks features that require server infrastructure to maintain.

What Membership Includes

• Unlimited game history: Save and access all your analyzed games in the cloud. Free accounts are limited to 10 saved games.
• Extended game fetch: Import larger batches of games directly from Chess.com and Lichess accounts.
• Ad-free experience: No advertisements anywhere on the platform.
• Priority support: Faster responses to questions and bug reports.

The Core Analysis Stays Free

ChessOnyx was built on the principle that powerful chess analysis should be accessible to everyone. The Stockfish 18 engine, move-by-move evaluation, accuracy scores, best-line suggestions, and the full puzzle library will always be free. Membership is for players who want additional convenience features and want to support the project.