FREE CSV CLEANUP · LOCAL PROCESSING
Free CSV checks.
Your data stays local.
Paste a small CSV to flag exact duplicate rows, trim whitespace and review decimal totals. Export the cleaned CSV and a change report.
01 / INPUT & RULES
Start with a CSV
The sample contains fictional records. Paste comma-delimited UTF-8 CSV with a header. Maximum 2 MB / 10,000 rows.
No values are guessed. Different rows with the same ID are preserved. Numbers must use a dot decimal without currency symbols or grouping separators.
02 / VERIFIED OUTPUT
Review before you export
Input or rules changed. Run checks again to update results and downloads.
A clear audit trail, not a black box.
Run the fictional sample to see duplicate flags, preserved blanks and exact decimal totals.
Cleaned data first 8 rows
Change & issue log
On-screen log shows up to 20 entries. The report includes all entries. Record numbers refer to logical CSV records, including the header.
CSV export adds an apostrophe to formula-like text; these export changes are recorded in the JSON report. CSV has no type metadata: import identifier columns as text to retain leading zeros.
SCOPED CSV CLEANUP SERVICE
Need help with
one file?
From $100 for one CSV up to 10,000 rows, agreed cleanup rules, a change report and editable source.
Discuss a project on Upwork ↗AI-assisted work with review and validation. Final scope, price, deadline and one correction round confirmed after sample review. This is an original demo, not a client case study.
- Agreed rulesAn anonymized sample and explicit acceptance criteria before starting.
- Checked outputsCleaned CSV, preserved exceptions, row counts and relevant total checks.
- Editable handoverSource, run instructions and one correction round within the agreed scope.