Fix Malformed CSV

Automatically repair quotes, delimiters, and line endings. 100% private—your data stays in your browser.

No uploadsNo signupInstant results
1

Drop Your Broken CSV

Upload a CSV with quote errors, encoding issues, or ragged rows.

2

Detect & Auto-Repair

We fix BOM markers, unbalanced quotes, control characters, and inconsistent columns.

3

Download Clean CSV

Get a standards-compliant CSV ready for any platform.

Click to upload or drag & drop

Supported files: CSV, TXT, JSON (Max 20MB)

Drop your file here

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Accepts .csv and .txt files up to 20MB. Common issues: unescaped quotes, mixed line endings, null bytes.

Max 20MB 100% Private

What This Tool Does

This tool automatically detects and repairs structural errors in CSV files, such as unescaped quotes, uneven row lengths (ragged rows), and mixed line endings.

How It Works

1Upload your corrupted CSV file.
2The engine scans for common parsing errors (e.g. quotes inside quotes).
3It automatically balances rows and closes unclosed quotes.
4Download the clean, valid CSV file.

Input Format

Any text-based CSV file.

Output Format

A spec-compliant CSV file ready for Excel or Database import.

When to Use This Tool

  • Rows are shifting into the wrong columns.

Frequently Asked Questions

This usually happens when a field contains a quote character that isn't properly escaped (e.g., "Height: 6'4""). Parsers get confused about where the field ends. Our tool detects these and adds the missing escape characters.

A ragged row occurs when a line in your CSV has fewer or more columns than the header row. This often happens due to unescaped line breaks. We automatically merge or pad these rows to match the correct column count.

Yes, to an extent. While this tool focuses on structure (quotes/rows), it also ensures the file is saved as standard UTF-8, which fixes many common encoding display errors.