Data Tools

Datasette running entirely in your browser via WebAssembly (Pyodide). Upload SQLite databases or CSV files and explore them with a full SQL interface — no server, no account, and your data never leaves your device. Built on the popular Datasette data exploration framework by Simon Willison.

Convert between table formats: Excel, CSV, JSON, HTML, SQL, Markdown, LaTeX, and more. Edit tables visually and export in your preferred format.

Multi-format code and data transformer. Convert between JSON, YAML, CSV, TypeScript, GraphQL, and many more formats instantly.

Convert Markdown to interactive mind maps. Write structured Markdown and see it transform into a zoomable, navigable tree visualization.

Convert between 200+ formats with precision. Audio, video, images, documents — powered by professional-grade tools.

Online tool for converting between CSV, JSON, and SQL formats. Also includes data cleaning and transformation utilities. All processing happens in the browser.

Visualize JSON data into interactive graphs. Seamlessly explore complex JSON structures with a tree-like graph view, search, and filter capabilities.

Generate realistic test data in CSV, JSON, SQL, and Excel formats. Customize schemas with 100+ data types.

Open-source data visualization framework. Paste your data, choose a chart type, and export beautiful visualizations as SVG or PNG.

Create, edit, and visualize GeoJSON data on an interactive map. Draw points, lines, and polygons with instant code output.

Trace the origins of any website through the Internet Archive. Look up any domain to receive a certified age badge with birth date, longevity ranking, historical timeline, and embeddable SVG badges for your website or README.

Run SQL queries online against MySQL, PostgreSQL, and SQLite. Test schemas and queries without installing a database.