How do I clean messy data?

Paste the data into the Data Cleaner; it normalizes formats and removes duplicate rows into a downloadable file.

Can I control what gets cleaned?

Yes — when you upload a file, the AI suggests actions per column and you choose which to apply.

Does it remove duplicates too?

Yes, exact duplicate rows are removed as part of the same cleaning pass.

Will my original file change?

No. You get a new cleaned file; the original is left untouched.

DatumFuse

Clean a messy CSV online

Drop in messy data and get a tidy, consistent dataset back — duplicates removed and formats normalized.

Open AI Data Cleaner →

Real-world spreadsheets are messy: the same value written five ways, dates in mixed formats, stray whitespace, inconsistent casing, and duplicate rows hiding in the middle. Cleaning it by hand means a long series of find-and-replace passes, and it is easy to introduce new errors along the way.

The DatumFuse Cleaner standardizes everything in one pass. It normalizes formatting, repairs inconsistent fields, and removes duplicate rows, returning a tidy file you can analyze or import. When you upload a file, it goes a step further and proposes specific cleaning actions per column so you can approve exactly what changes before it runs.

How it works

1
Add your data
Paste a CSV for a quick clean, or sign in to upload for column-level control.
2
Review the suggestions
On uploads, accept or skip the AI's proposed cleaning steps per column.
3
AI cleans in one pass
Formats are standardized, fields fixed, and duplicate rows removed together.
4
Download the tidy file
Export a consistent, analysis-ready dataset.

Use cases

CRM import prep

Standardize and dedupe contacts before loading them into a CRM.

Merge-ready formatting

Normalize a file so it lines up cleanly before combining it with another.

Consistent reporting

Fix inconsistent categories so pivots and group-bys aggregate correctly.

Frequently asked questions

How do I clean messy data?: Paste the data into the Data Cleaner; it normalizes formats and removes duplicate rows into a downloadable file.
Can I control what gets cleaned?: Yes — when you upload a file, the AI suggests actions per column and you choose which to apply.
Does it remove duplicates too?: Yes, exact duplicate rows are removed as part of the same cleaning pass.
Will my original file change?: No. You get a new cleaned file; the original is left untouched.

Powered by the AI Data Cleaner

Clean and normalize messy CSV data with AI. Standardize formats, fix inconsistent fields, and remove duplicate rows, then export a tidy dataset.

Try the AI Data Cleaner →

Clean a messy CSV online

How it works

Add your data

Review the suggestions

AI cleans in one pass

Download the tidy file