Security and scope
The service does exactly the documented cleanup, then stops.
Clear CSV.
Trim spaces, remove exact duplicates, and neutralize formulas. Preview every change before you pay.
Clean one file now
CSV up to 1,000 rows and 1 MiB
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Your data
UTF-8, comma-separated, up to 1 MiB
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Preview data is processed over HTTPS and is not stored. Upload only data you have permission to process.
Your preview
File processed0input rows
0cleaned rows
0duplicates removed
0formulas neutralized
BeforeYour file
AfterCleaned CSV
Review the comparison table above. Download the complete, cleaned file with all duplicate rows removed and formula cells neutralized.
Your order
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Paste the rows
Start with a UTF-8, comma-separated export.
namecitystatus
Emily Austinactive
EmilyAustinactive
James Denver =1+1
PasteTrimDe-duplicateNeutralize
One clean file.
$0.99 once.
Preview first. The purchase includes the full cleaned CSV, encrypted storage, and 24-hour access.
Clean a fileDefined by design
Cleaned order files are encrypted at rest.
Order access expires after one day.
Deterministic code performs every change.
Only identical rows after trimming are removed.
Formula-like cells receive a leading apostrophe.
Previewnot stored
Paid fileencrypted
Access24 hours
Questions, answered
How are files processed and stored?
Previews are processed on the server and are not stored. Paid order files are encrypted at rest. Access expires 24 hours after order creation.
What does formula neutralization do?
Cells beginning like spreadsheet formulas receive a leading apostrophe. This changes how spreadsheet software interprets the value.
What does the download include?
The purchase includes the full cleaned CSV within the stated size limits. You can inspect sample rows and transformation counts first.
Does it merge similar customer records?
No. Different names, addresses, or values remain separate. ClearCSV removes exact duplicate rows only after trimming edge spaces.
Can I clean an Excel export?
Yes. Export the workbook as a UTF-8 comma-separated CSV first. Excel .xlsx files are not accepted directly.
Is there a subscription?
No. Preview is free, and each full cleaned file is a one-time purchase.
Keep it.
Paste a sample or upload your export. The preview shows exactly what will change.
Preview your CSVBeforemessy.csvChangesvisibleAfterclean.csv