Clean

Automatically diagnose and repair broken, corrupted CSV exports

Diagnose and repair common CSV corruptions: unclosed quotes, broken delimiters, jagged row lengths, and encoding glitches.

🛡️ Your rows never leave your browser.

Why Onfyt: Processes fix a messy csv export entirely in-browser with dedicated Web Workers so your rows never leave your machine.

Interactive Sample Data

id	company_name	notes	status
1	Acme Corp, Kenya	Great client, fast payer	Active
2	Global Logistics	Unclosed quote in note field	Pending
3	Safari Tech	Multiline note text	Active
4	Coast Shipping	Standard note	Inactive

How this tool works

Corrupted CSV exports are a daily headache for data analysts, software engineers, and business operators. Exports generated by legacy ERP databases, custom web forms, or flawed scripts frequently violate the RFC 4180 CSV standard: - Unclosed or unescaped quotes that swallow subsequent lines into giant runaway cells. - Commas inside unquoted text fields that split single values across extra columns. - Multiline comments that split a single record into multiple disconnected rows. - Jagged row lengths where some rows contain 6 columns while others contain 4 or 8. - Stray delimiters (semicolons mixed with commas). Opening a corrupted CSV in spreadsheet software results in shifted columns, missing records, or outright import errors. This tool runs an automated diagnosis on your messy CSV: - Balances and closes unescaped quotation marks. - Wraps cells containing internal delimiters in proper RFC 4180 double quotes. - Sanitizes unexpected line breaks within text cells. - Pads short rows with empty cells to ensure rectangular table geometry. All repairs run client-side in your browser via local Web Workers. Your corrupted data stays private on your local machine. From an engineering reliability perspective, corrupted CSV files with unclosed quotation marks, broken delimiters, and jagged row lengths cause standard data parsers to crash. When a text field contains an unclosed quote, parsers consume all subsequent rows into a single runaway cell. DataFix runs an automated lexical diagnosis that balances quotes, wraps cells containing internal commas in proper RFC 4180 double quotes, and pads short rows with empty cells to restore rectangular table geometry. From an enterprise governance perspective, proprietary customer records, transaction histories, and database dumps must be repaired without risking exposure to external cloud services. Uploading corrupted files to public web utilities introduces severe data breach liabilities. DataFix repairs all CSV corruptions locally within your browser sandbox via Web Workers, ensuring that your data remains strictly confidential and secure. In emergency data recovery and ETL troubleshooting, repairing corrupted CSV exports saves development teams hours of manual text editing. When automated exports fail due to database timeouts or unclosed quotes, entire reporting pipelines grind to a halt. DataFix functions as an automated first-aid kit for broken spreadsheets: balancing quotation marks, wrapping unquoted internal commas, and normalizing row lengths so that broken exports open cleanly in Excel, Google Sheets, and PostgreSQL without errors.

Things that usually go wrong

Runaway Quotes Swallowing Rows: A single missing quote mark can cause an entire file to be treated as one cell. DataFix identifies and closes runaway quotes.
Jagged Column Counts: Rows with fewer columns than the header disrupt database imports. DataFix pads short rows with empty values.
Mixed Delimiters in One File: Files with both commas and semicolons are normalized to a single consistent delimiter.

Edge cases we tested

🧪 Empty cells or missing values

Safely handled without schema corruption.

🧪 Leading or trailing cell whitespace

Sanitized prior to processing.

🧪 Large files with 25,000+ rows

Streamed via client-side Web Worker without tab freezing.

Frequently Asked Questions

Can this tool fix files that crash Microsoft Excel?

Yes! Excel crashes on unclosed quotes and inconsistent delimiters. DataFix repairs these issues so files open cleanly.

How does it handle line breaks inside cells?

Embedded carriage returns are preserved inside proper quotes or replaced with spaces per your preference.

What happens to rows with missing columns?

Short rows are padded with empty cells to match the header column count, restoring rectangular table geometry.

Is my data private?

Your rows never leave your browser. All processing runs in a JavaScript Web Worker inside this tab.

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