ChessVision Engine — Universal Browser Chessboard Recognition & Local Analysis - Sell Project

Listed September 2, 2026

About ChessVision Engine — Universal Browser Chessboard Recognition & Local Analysis

Low-memory Chrome extension that detects chessboards across the web.

ChessVision Engine is a pre-revenue browser-based chessboard recognition and local analysis product built as a Chrome extension. It detects chessboards across different webpage structures, reconstructs the board state, identifies whose move it is, and runs local Stockfish analysis without relying on a cloud API. The current build includes best-move analysis, a representative mid-tier move, the worst-ranked legal move, mate-threat visibility, configurable depth/strength/time controls, automatic board scanning, manual FEN analysis, and start/stop controls. The core value is the underlying technology: reliable browser chessboard recognition across diverse DOM structures, piece representations, and layouts. The sale includes the source code, brand assets, website files, and both chessvisionengine.com and chessvisionengine.co.uk.

Project details

Website: https://chessvisionengine.com

Next step: There are several clear directions a buyer could pursue. The most immediate route would be to polish and publish the extension through the Chrome Web Store, establish a free/premium model, and build a user base around chess analysis, training, puzzles and post-game review. The browser-recognition layer could also be separated into a reusable library or SDK and licensed to chess training platforms, broadcasters, educational products, accessibility tools or existing chess software businesses. Other opportunities include:<ol><li data-list="bullet">subscription or one-time paid extension plans</li><li data-list="bullet">B2B licensing of the board-recognition technology</li><li data-list="bullet">a standalone developer SDK/API</li><li data-list="bullet">Firefox and Safari versions</li><li data-list="bullet">web and desktop analysis products</li><li data-list="bullet">accessibility-oriented chess tooling</li><li data-list="bullet">broadcasting and content-creator integrations</li><li data-list="bullet">educational and coaching features</li><li data-list="bullet">integration into an existing chess platform</li><li data-list="bullet">expansion of the generic recognition layer to support additional board implementations</li></ol> Because the product is pre-launch, the buyer has full freedom to choose the commercial model, branding direction and distribution strategy without inheriting legacy customers or commitments.

For sale

Asking price: $7,500 USD

What's included

Domain name, Source code, All related data, All related design work

Also included are the complete technical documentation, validation/test materials, transfer documentation, Cloudflare Pages website files, packaged v1.6.0 release, brand assets and configuration required to continue development or deployment. There is no customer database or personal user data because the project is pre-launch.

Reason for selling

ChessVision Engine was developed as a standalone technology asset, but my primary focus is on other software and AI projects rather than building a separate chess business. The project has now reached a complete pre-launch stage, so I would rather transfer it to a buyer with the distribution, chess-industry experience or commercial focus to take it further.

Project metrics

Average Monthly Visitors: Pre-launch

Average Monthly Revenue: Pre-revenue

Average Monthly Downloads: Pre-launch / New project