CSV Escape / Unescape

Escape a CSV field value so it is safe to embed inside a CSV file — wrapping it in double quotes and doubling any internal double quotes per RFC 4180. Unescape a quoted CSV field back to the original raw value.

Last updated: May 28, 2026

Field value

Output

RFC 4180: fields containing commas, newlines, or double quotes are wrapped in double quotes. Internal double quotes are doubled (""). Use Unescape CSV to strip the outer quotes and recover the original value.

Client-Side Processing

Input Data Stays on Device

Instant Local Execution

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What is CSV Escape / Unescape?

CSV (Comma-Separated Values) uses double quotes to wrap field values that contain commas, newlines, or double-quote characters. When a value itself contains a double quote, it must be escaped by doubling it (""). This is the RFC 4180 standard for CSV escaping.

This tool handles a single field value at a time — useful when you need to safely embed a specific value in a CSV row, verify that an existing quoted field decodes correctly, or understand why a CSV parser is rejecting a particular field.

How to Use CSV Escape / Unescape

Paste the raw field value into the input

Click "Escape CSV" to wrap it safely for use inside a CSV file

Click "Unescape CSV" to strip the outer quotes and recover the original value

Copy the output and use it directly in your CSV row or data pipeline

Common Use Cases

Data engineers escaping address or description fields that contain commas before inserting them into a CSV export.
Developers debugging CSV parsers by manually escaping edge-case values with embedded newlines or quote characters.
Backend engineers generating CSV rows programmatically and needing to verify the correct escaping for a specific field.
QA testers validating that CSV import logic handles RFC 4180 quoting correctly for boundary cases.
Data analysts cleaning up CSV files where field values were not properly escaped during export.

Example Input and Output

A product description containing a comma and a quoted phrase needs escaping before it can be safely placed in a CSV field.

Raw field value

Deluxe Bundle, includes "Pro" licence

Escaped CSV field

"Deluxe Bundle, includes ""Pro"" licence"

Newlines inside fields

Fields containing actual newline characters must also be wrapped in double quotes. Some CSV parsers handle this correctly; others require all multi-line values to be on a single physical line.

Browser-side only

All processing runs locally in your browser. No data is sent to any server.

Frequently Asked Questions

When does a CSV field need to be escaped?

A field must be wrapped in double quotes when it contains a comma, a newline (\n or \r\n), or a double-quote character. Fields without those characters can be left unquoted.

How are double quotes inside a field escaped in CSV?

Per RFC 4180, a double quote inside a quoted field is represented by two consecutive double quotes (""). For example, the value She said "hello" becomes "She said ""hello""".

Does this tool handle multi-field CSV rows?

No — this tool escapes or unescapes a single field value. For full CSV parsing and generation, use the CSV to JSON or CSV Viewer tools.

What CSV standard does this follow?

RFC 4180, the most widely adopted CSV specification. Most spreadsheet applications (Excel, Google Sheets, LibreOffice) and CSV parsers follow this standard.

Is my data sent to a server?

No. Escaping and unescaping run entirely in your browser.