AXERION · FREE LOCAL UTILITY

A small check before your next CSV import.

Spot common structural issues without sending your CSV to a server. Choose one file, or explore a synthetic example.

Check your CSV

Comma-separated UTF-8 (optional BOM). Up to 2 MiB, 10,000 data records and 100 columns. The first record is the header.

Ready. No CSV selected.

A useful first look, with limits

Checks empty and repeated headers (trimmed, case-insensitive), uneven rows, exact repeated data records, surrounding whitespace and potential spreadsheet formula prefixes. Negative values may be flagged. Nothing is automatically changed or rewritten.

This is a generic structural check, not a correctness, import-compatibility or security guarantee. AI-generated prototype code can contain errors. A result with no findings does not establish that data is safe or ready to import.

Processing runs locally in your browser. This tool has no upload endpoint, backend, network API, storage, cookies, analytics or external assets. Your browser and device still handle the data; this is not an absolute privacy or security guarantee. Reports reveal counts and positions. Reset clears this page's selected data and report; downloaded reports remain on your device.

Use synthetic or non-sensitive data. Do not select medical or HR records, passwords, tokens, payment details, government identifiers or personal/customer data.

Need an agreed small CSV cleanup?

USD25 total for one authorized, non-sensitive CSV up to 500 data rows and 10 columns: a short report, a cleaned CSV using only approved transformations, and one clarification. AI-assisted service; no missing facts invented.

Before sending a file or starting work, agree in writing on privacy and safe handling, scope, acceptance criteria, your location and applicable tax, the total price, payment method and date, deadline, cancellation/refund terms and capacity. USD25 includes any required seller-collected tax for the agreed scope. No upfront payment or subscription. No correctness or import guarantee.

One accepted job at a time across all Axerion offers. An inquiry is not an order or reservation. No customer delivery or endorsement is claimed.

New scope requests close November 8, 2026 at 18:00 UTC.

Public business contact: admin@axerionsystems.com. Never attach sensitive data or post customer data in source issues.