Local by design
No upload, analytics, network calls, or runtime AI. The supplied HTML runs directly in your browser.
CSV Desk 1.0.0 · one-time $9
Clean CSV files without uploading them.
Open one HTML file in Microsoft Edge, review every change, then save a separate cleaned CSV and JSON report. Your data stays on your computer.
Buy CSV Desk for $9
Try the sample
Read the cleanup guide
Fix Chinese CSV encoding
修复 CSV 中文乱码
Free encoding checker
Free duplicate checker
Duplicate-row removal guide
Free formula-risk checker
Formula injection prevention guide
$12 formula-safety service
Free CSV reconciliation checker
$29 CSV reconciliation service
See the public demo
PayPal checkout is available through itch.io. No subscription or account is needed to run the tool.
Conservative cleanup
Trim surrounding whitespace, remove exact duplicate rows, and optionally make formula-like cells inert.
Reviewable output
Preview the first 20 rows and export a JSON report with changed record and column positions.
Included
- Standalone CSV Desk HTML tool
- Synthetic example and usage guide
- Personal and commercial internal-use license
- UTF-8 and GB18030 input; UTF-8 BOM output
Clear limits
Comma-delimited CSV only, up to 5 MB, 10,000 data records, and 100 columns. CSV Desk does not convert XLSX files, infer business rules, or include custom cleanup services.
Code and documentation were AI-generated and browser-tested. No independent human review is claimed.
Questions before buying
Does CSV Desk upload my data?
No. The supplied HTML file runs locally in Microsoft Edge and makes no network requests while processing your CSV.
What changes does it make?
It trims surrounding whitespace, removes rows that are exact duplicates across every column, and can neutralize cells that begin like spreadsheet formulas. It writes a separate cleaned CSV and JSON change report.
Does it support XLSX files?
No. Version 1.0.0 accepts comma-delimited CSV files up to 5 MB, 10,000 data records, and 100 columns.