CSV Delimiter Checker
Work out whether the file is using the wrong separator or a mixed delimiter pattern that is making the CSV look broken.
Check delimiters and structure
Use the validator below to inspect separator-related issues before you import or convert the file.
CSV Input
Detected delimiter: ","
Validation Report
Run validation to see report.
- No issues found.
Delimiter problems to watch for
- Files that use semicolons instead of commas
- Tabs or pipes that were exported under a different format
- Mixed separators inside the same file
- Quoted values that hide delimiter problems
Why delimiter checks matter
- Import tools often assume one separator and fail silently
- Spreadsheet columns can collapse into one field
- JSON and database conversions depend on correct column splits
- Regional exports may default to semicolons instead of commas
Delimiter examples by workflow
Comma-separated
The most common format for imports, exports, APIs, and spreadsheet handoffs.
Semicolon-separated
Common in some regional exports and often mistaken for a broken CSV when opened elsewhere.
Tab or pipe-separated
These can appear after manual exports or conversions and may need different parsing assumptions.
FAQ
- What is a CSV delimiter checker?
- A CSV delimiter checker helps you spot whether a file is using commas, semicolons, tabs, pipes, or another separator pattern that affects how the file is parsed.
- Why does the wrong delimiter make a CSV look corrupted?
- If the parser expects commas but the file uses semicolons or tabs, the columns will not split correctly and the data can appear to collapse or shift.
- Do regional exports sometimes change the delimiter?
- Yes. In some locales, exported CSV-like files often use semicolons instead of commas, which is a common cause of confusion during import.