Grandmaster Vision Chess by ArielTatum

Analyze your Chess.com games in real-time with a powerful local Stockfish engine. Features a draggable overlay with an evaluation bar, customizable move visualization (arrows or highlights), adjustable engine depth, and multi-move analysis.

5 (1 review)

6 Users

Download Firefox and get the extension

Download file

About this extension

Grandmaster Vision is a lightweight, privacy-focused analysis tool designed to help you understand chess positions instantly while playing or analyzing on Chess.com. Unlike other tools that rely on slow external servers, this extension runs a Stockfish engine directly in your browser for maximum speed and reliability.

Key Features:

Real-Time Analysis: Automatically detects moves and updates the evaluation instantly.
Visual Cues: Choose between Highlight Squares or Directional Arrows to see the best moves.
Evaluation Bar: A visual bar that shows who is winning and by how much (Green for advantage, Red for disadvantage).
Multi-Move Support: View up to 3 best lines simultaneously to understand your options.
Fully Configurable: Adjust the engine Depth (calculation power) and Skill Level (0-20) to match your needs.
Privacy First: No user data is collected or sent to any server. All analysis happens locally on your machine.

How to Use Grandmaster Vision:

Open a Game: Go to any match or puzzle on Chess.com.
Locate the Panel: You will see a dark, floating panel named "GM Vision" on the screen top right area. You can drag this panel by clicking and holding the header to move it anywhere you like.
Start the Engine: Click the Toggle Switch at the top of the panel to turn the engine ON.

Customize Your View:

Visual: Switch between "Squares" (colored boxes) or "Arrows" (lines pointing to the move).
Moves: Use the slider to show the top 1, 2, or 3 best moves.
Depth: Slide to the right for deeper, Grandmaster-level calculation (slower) or left for instant speed (faster).
Skill: Adjust the engine strength from 0 (Novice) to 20 (Max Strength).
Read the Eval Bar: The bar below the sliders shows the game state. If it fills to the right (Green), you are winning. If it shrinks to the left (Red), you are in trouble!

Note: This extension is intended for educational analysis and unrated games. Please respect fair play guidelines when using chess assistance tools.

Rated 5 by 1 reviewer

Grandmaster Vision Chess by ArielTatum

Required permissions:

Optional permissions:

Required data collection, according to the developer:

Optional data collection, according to the developer: