ETL (Extract, Transform, Load) is the foundation of data engineering. DataLensia brings this power to your browser with a visual-first approach — no code required.

📤 Extract

Data can be extracted from multiple sources:

Local Files: JSON, CSV, NDJSON — drag and drop into any tool.
Static Input: Paste raw JSON strings directly into the editor for quick processing.
URL: Fetch data directly from a web link (HTTP/HTTPS or file URL).
Remote APIs: Fetch data directly from REST endpoints using the API Fetch Component.

Data Upload

🔄 Transform

This is where the magic happens. Using the Transform Builder, you can:

Map Fields: Rename and restructure objects visually.
Use Drag-and-Drop: Build mappings quickly by dragging fields from your source tree into target slots.
Cast Types: Convert strings to numbers or booleans.
Cleanse: Trim whitespace, handle nulls, and apply regex patterns.
See Live Preview: Preview your transformed data instantly as you change mappings and operations.
Stay Private: Transformations run in the browser, so your raw data never needs to leave your device.

📥 Load

The final step is getting your data where it needs to go:

Export: Download as CSV, SQL, XML, YAML, or code using the Convert Tool.
Mock API: Turn your result into a live, shareable endpoint using the Mock API.
Code: Generate TypeScript interfaces or JavaScript transformation logic directly from your data.

🚀 Try it now

Open the Transform Builder to start your first visual transformation workflow.