Free online tool

Data Cleaning Studio

Clean a CSV table with repeatable steps. Rename columns, fix values and filter rows, then download the cleaned table.

Runs on a separate serverNo account neededCSV / JSON recipeOpen workspace ↓

Can I review each transformation before exporting my data?

Enter a CSV table and a JSON recipe. Each step reports its output shape and preview; the final table can be downloaded as CSV. Optional left joins use a second CSV supplied in the join field.

Your input

0 characters

This tool sends your input to a separate processing service. Temporary job files are deleted when processing ends. Only send content you are comfortable uploading.

Separate processing · Automatic file cleanup

Your result

A little clarity, right here.

Start with your own content or load the example. Your result will appear here.

Three simple steps

How to use Data Cleaning Studio

  1. Choose your input and adjust the options.

  2. Review the preview and run the tool.

  3. Download the result and keep your original.

Common questions

Good to know

Understand the result.
Keep the original.

Is this tool free, and are my files uploaded?

This tool is free with no account required. When you run the tool, your input goes to a separate processing service. Temporary files are deleted when the job ends. You can download the result to your device.

What are the limits and details?

Up to 50,000 rows, 100 columns, and 20 explicit recipe steps. Available operations are select, rename, cast, trim, fill, drop-missing, filter, sort, deduplicate, group, and left join. Arbitrary code is not executed.

Limits: one file up to 8 MB; 500,000 characters per text field. One job runs at a time on the worker, with a two-minute limit.