> ## Documentation Index > Fetch the complete documentation index at: https://docs.tablixhq.com/llms.txt > Use this file to discover all available pages before exploring further. # Introduction > Tablix is a browser-based AI spreadsheet with a built-in Python and SQL engine and an AI assistant that writes and runs code for you. ## What is Tablix? Tablix (branded **TablixAI** inside the AI chat) combines a familiar spreadsheet grid with: * A built-in **Python** engine (runs entirely in your browser via Pyodide) * A built-in **SQL** engine (runs entirely in your browser via SQLite/WASM) * An **AI Analyst** chat sidebar that writes and runs that Python/SQL for you, builds charts, cleans data, and answers questions about your data * Rich charting, formatting, data validation, and drawing tools These docs describe only features that exist in the current Tablix codebase. Nothing here is speculative — if a feature isn't implemented, it isn't documented. Sign in, explore the dashboard, and create your first spreadsheet The grid, formulas, formatting, and data tools Drag fields into Rows/Columns/Values/Filters for instant summaries Share a link, set Viewer/Editor access, and collaborate live The function library, Formula Bar, and AI-generated formulas Chat with TablixAI to clean data, build charts, and answer questions Give TablixAI a goal and let it plan and run multiple steps on its own Write and run Python against your sheet, entirely in-browser Query your sheet — and external databases — with real SQL 26 chart types with an auto-recommendation engine The home screen, plus building multi-chart dashboards on a sheet ## Reference