CSV Checker
When a CSV saved from Excel breaks or shifts in another program, this tells you which line is wrong.
🔒 Files are processed only inside your browser and are never sent to a server.
How to use
- Choose or drop a CSV file.
- Encoding and delimiter are detected automatically. If text looks broken, choose the encoding yourself.
- Fix the lines listed in the results. Problem rows are highlighted in the preview.
- If the file has a column such as product codes or order numbers, choose it under "Code column" to see values starting with 0 and values with leading or trailing spaces first.