Does It Preserve Quoted Commas And Line Breaks?

Yes. The parser recognizes quoted fields and doubled quote escapes, then safely quotes cells during export.

Can I De-Duplicate By One Column?

Yes. Choose a header as the duplicate key, or compare each complete row.

Is The Quality Score A Guarantee?

No. It summarizes missing values and detected cleanup; it cannot know whether a value is factually correct or appropriate for your destination system.

CSV Cleaner & Data Profiler

Clean CSV or TSV rows, normalize headers and text, remove blanks or duplicates, profile columns and export verified CSV, Excel or JSON reports.

Clean preview

96% quality

Data rows2

Columns5

Changed cells9

Removed rows2

name	email	department	start_date	active
Jordan Lee	jordan@example.com	Production	2026-09-01	Yes
Avery Smith	avery@example.com	Camera	2026-09-03	Yes

Column profiler

0 missing cells

Column	Inferred type	Filled	Unique	Examples
name	text	2	2	Jordan Lee · Avery Smith
email	text	2	2	jordan@example.com · avery@example.com
department	text	2	2	Production · Camera
start_date	date	2	2	2026-09-01 · 2026-09-03
active	boolean	2	1	Yes

Type inference and the quality score are diagnostics, not schema validation. Review identifiers, dates with ambiguous regional formats, and values with leading zeroes before importing the file elsewhere.

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What Is the CSV Cleaner & Data Profiler?

A local tabular-data workbench with quote-aware delimiter detection, repeatable cleaning controls, before-to-after counts, a 200-row preview and column profiles for inferred type, missing values, uniqueness and examples.

How It Works

Open or paste CSV/TSV data, confirm the delimiter, choose trimming, header normalization, blank-row removal, duplicate strategy and text casing, then inspect the clean preview and profiler. Download cleaned delimited text, Excel or a JSON quality report.

When to Use It

Prepare exports for a CRM, analysis workbook, database import or reconciliation. Review identifiers, regional dates, decimals and leading zeroes because lightweight inference is not a substitute for a declared schema.

Frequently Asked Questions

Does It Preserve Quoted Commas And Line Breaks?: Yes. The parser recognizes quoted fields and doubled quote escapes, then safely quotes cells during export.
Can I De-Duplicate By One Column?: Yes. Choose a header as the duplicate key, or compare each complete row.
Is The Quality Score A Guarantee?: No. It summarizes missing values and detected cleanup; it cannot know whether a value is factually correct or appropriate for your destination system.

Found an issue? Send Feedback. See our data sources and update policy for tools that depend on changing information.