ETL Studio Formatter Online - Free Browser Tool

Source format

Source data (CSV or JSON)JSON

Flow · drag cards to reorder

Source

5 cols

6 rows

→

1. Trim whitespace

all cells

6 rows

→

2. Deduplicate

by order_id

5 rows

→

3. Filter rows

status equals "paid"

3 rows

→

4. Sort

amount desc (num)

3 rows

→

Output

5 cols

3 rows

Inspector · step 1 · Trim whitespace

Trims leading/trailing whitespace in every cell.

Table view3rows·5columns

order_id	customer	country	amount	status
1003	Cy	UK	248.00	paid
1001	Ada	UK	129.90	paid
1004	Di	DE		paid

Tip: use samples, upload, copy, download, and send-to actions inside the workspace where available.

What is ETL Studio?

ETL Studio Formatter is a free, browser-based tool that helps you make messy data readable. Drag-and-drop ETL canvas: upload, transform, map, merge, export. It's built for speed and privacy: Everything runs locally in your browser — your data is never uploaded to a server. No sign-up, no installs, and no daily limits.

How to use ETL Studio

1Paste your data into the input panel or drop a file.
2Choose how it should look — indentation, pretty-print vs. minify, and structure options.
3Copy the formatted output or download it for use in your project.

Features

Toggle between pretty-print and minify
Consistent, configurable indentation
100% client-side — no upload, fully private
Free with no account, no watermark, and no daily limit
Works on large inputs, limited only by your device's memory
Load a sample, then copy, download, or share your result

Common uses

Prototyping a data pipeline with no code
Quick one-off formatter jobs without opening a heavy app
Preparing data before importing it elsewhere
Sharing a reproducible result with a teammate via a link

Frequently asked questions

How do I use ETL Studio?: Paste or drop your data into the workspace, adjust the options to fit your data, then copy or download the result. Drag-and-drop ETL canvas: upload, transform, map, merge, export.
Is my data uploaded or stored anywhere?: No. Everything runs locally in your browser — your data is never uploaded to a server. Nothing is sent to a server, so it's safe to use with private or sensitive data.
Is ETL Studio Formatter free?: Yes — it's completely free with no account, no sign-up, no watermark, and no daily usage limits.
What's the maximum file size?: There's no hard limit imposed by the tool. Because processing happens in your browser, the practical ceiling is your device's available memory — most everyday files work instantly.
Do I need to install anything?: No installs and no extensions — it runs entirely in your web browser and even works offline once the page has loaded.

order_id

customer

country

amount

status

1003

248.00

paid

1001

Ada

129.90

paid

1004

paid

What is ETL Studio?

Frequently asked questions

How do I use ETL Studio?

Paste or drop your data into the workspace, adjust the options to fit your data, then copy or download the result. Drag-and-drop ETL canvas: upload, transform, map, merge, export.

Is my data uploaded or stored anywhere?

No. Everything runs locally in your browser — your data is never uploaded to a server. Nothing is sent to a server, so it's safe to use with private or sensitive data.

Is ETL Studio Formatter free?

Yes — it's completely free with no account, no sign-up, no watermark, and no daily usage limits.

What's the maximum file size?

There's no hard limit imposed by the tool. Because processing happens in your browser, the practical ceiling is your device's available memory — most everyday files work instantly.

Do I need to install anything?

No installs and no extensions — it runs entirely in your web browser and even works offline once the page has loaded.