DataLensia is a privacy-first, client-side data visualization platform that allows you to upload, explore, and visualize JSON, CSV, and NDJSON files entirely in your browser. No data is ever sent to a server, ensuring complete privacy and security.

What file formats does DataLensia support?

DataLensia supports JSON, CSV, NDJSON (newline-delimited JSON), and JSON-LD formats. The platform can handle large datasets efficiently.

Is my data secure with DataLensia?

Yes, absolutely. DataLensia processes all data entirely in your browser using client-side JavaScript. Your data never leaves your device and is never uploaded to any server, ensuring complete privacy and security.

What visualizations can I create with DataLensia?

DataLensia offers multiple visualization types including bar charts, line charts, scatter plots, pie charts, treemaps, node graphs, and more. The platform automatically suggests appropriate visualizations based on your data structure.

Can I edit my data in DataLensia?

Yes, DataLensia includes a built-in JSON editor that allows you to modify your data in real-time. Changes are reflected immediately in visualizations and can be exported.

How large of a file can I upload?

DataLensia supports large datasets and uses efficient client-side processing to handle substantial files without performance issues.

DataLensia

Fast Data VisualizerData Viz

Privacy-first (client-side only)Privacy-first

Supports large datasetsLarge datasets

Export & share visualizationsExport & share

Upload Your Data

Upload CSV, JSON, or NDJSON files to visualize and analyze your data instantly. Supports large datasets with automatic schema detection and intelligent format recognition.

Drag & drop your file here

Supports CSV, JSON, and NDJSON filesCSV, JSON, NDJSON

✨ Automatic format detection & intelligent parsing✨ Auto-detection & parsing

Supported formats: CSV, JSON, NDJSON, Key-Value

Max size: 200MB • Client-side processing