Clean spreadsheet exports
Ada , London
↓
Ada,London
Remove empty rows and unwanted cell whitespace from exported spreadsheet data.
CleanrKit
CSVCleanr
Free browser tool
Clean and normalize CSV data online
Tidy CSV data by trimming cells, normalizing headers, removing empty rows, and eliminating duplicate records. CSVCleanr provides an instant table preview so you can verify the result before downloading it.
Input
- Characters
- 0
- Lines
- 0
Output
- Characters
- 0
- Lines
- 0
Preview
ReadyCommon uses
CSVCleanr examples
Normalize column headers
First Name,EMAIL Address
↓
first_name,email_address
Create consistent, machine-friendly field names for imports and data pipelines.
Remove duplicate records
Ada,42
Ada,42
↓
Ada,42
Deduplicate repeated rows before analysis, migration, or database ingestion.
What it can do
CSVCleanr features
Row and cell cleanup
Trim cell values, remove empty records, and replace missing data consistently.
Header normalization
Convert inconsistent column labels into cleaner, predictable field names.
Instant table preview
Inspect the cleaned rows and columns before exporting your CSV.
Three simple steps
How to use CSVCleanr
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1
Paste CSV content
Add comma-separated data to the Input field.
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2
Configure the cleanup
Choose how to handle headers, whitespace, duplicates, and empty values.
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3
Clean and verify
Run CSVCleanr, inspect the preview, then copy or download the CSV.
Helpful answers
CSVCleanr FAQs
Can CSVCleanr remove duplicate rows?
Yes. Enable duplicate-row removal to keep only the first occurrence of each identical record.
Can I preview the cleaned CSV?
Yes. The table preview lets you inspect rows and columns before copying or downloading the result.
What happens to empty cells?
You can keep empty cells or replace them with a custom value while cleaning the file.