Data Tools
12 verified tools
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Online tool for converting between CSV, JSON, and SQL formats. Also includes data cleaning and transformation utilities. All processing happens in the browser.
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Convert between table formats: Excel, CSV, JSON, HTML, SQL, Markdown, LaTeX, and more. Edit tables visually and export in your preferred format.
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Open-source data visualization framework. Paste your data, choose a chart type, and export beautiful visualizations as SVG or PNG.
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Multi-format code and data transformer. Convert between JSON, YAML, CSV, TypeScript, GraphQL, and many more formats instantly.
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Convert Markdown to interactive mind maps. Write structured Markdown and see it transform into a zoomable, navigable tree visualization.
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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.
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Convert between 200+ formats with precision. Audio, video, images, documents — powered by professional-grade tools.
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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.
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Visualize JSON data into interactive graphs. Seamlessly explore complex JSON structures with a tree-like graph view, search, and filter capabilities.
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Run SQL queries online against MySQL, PostgreSQL, and SQLite. Test schemas and queries without installing a database.
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Generate realistic test data in CSV, JSON, SQL, and Excel formats. Customize schemas with 100+ data types.
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Create, edit, and visualize GeoJSON data on an interactive map. Draw points, lines, and polygons with instant code output.
FAQ
- What are the best Data tools without login?
- nologin.tools lists 12 verified Data tools that work without creating an account. Each tool is manually reviewed to ensure its core functionality is accessible without signup.
- Are these Data tools really free?
- Most Data tools listed here offer free core functionality without login. Some may have optional premium features, but you can always use the essentials without payment or registration.
- How are Data tools verified?
- Each tool is manually tested by the nologin.tools team to confirm that its core features work without creating an account. We also run automated health checks to ensure tools remain accessible.