TSV to CSV Converter: Convert Tab-Separated Data
TSV (tab-separated values) and CSV (comma-separated values) are two of the most common data formats for tabular data. In this guide, you will learn how to convert TSV to CSV, when to use each format, and how FormatList's free converter makes the process seamless.
Table of Contents
TSV vs CSV: Key Differences
The only structural difference between TSV and CSV is the delimiter — but that small difference has practical implications:
| Feature | TSV | CSV |
|---|---|---|
| Delimiter | Tab (\t) | Comma (,) |
| Common Source | Database exports, SQL results | Spreadsheets, data interchange |
| Quoting | Less common, but supported | Required when values contain commas |
| Commas in Data | No conflict (tab is delimiter) | Must be quoted |
| Tool Support | Common in DB tools | Universal support |
Why Convert TSV to CSV?
Converting TSV to CSV is often necessary for practical reasons:
Broader Compatibility
CSV is supported by virtually every spreadsheet, data analysis tool, and import feature. TSV support is less universal.
Spreadsheet Import
Excel, Google Sheets, and Numbers all natively open CSV files. TSV files often require explicit import settings.
Data Pipeline Compatibility
Many ETL tools, data warehouses, and cloud services prefer CSV for data ingestion.
Team Collaboration
Sharing data as CSV ensures anyone on your team can open it regardless of their tools or technical background.
How to Convert TSV to CSV
Using FormatList's TSV to CSV converter is simple:
Step 1: Open the TSV to CSV Tool
Go to formatlist.com/tsv-to-csv. You'll see a TSV input panel on the left and the CSV output on the right.
Step 2: Paste or Upload Your TSV
Paste TSV data directly into the text area, or upload a
.tsvor.tabfile. The converter automatically processes tab-separated values.Step 3: Review the CSV Output
The CSV output updates in real time. Values containing commas are automatically wrapped in double quotes. Newlines within quoted fields and embedded quote characters are also handled correctly.
Step 4: Copy or Download
Click Copy to copy the CSV to your clipboard, or download it as a
.csvfile. Ready for use in any spreadsheet or data tool.
Examples
Basic TSV to CSV Conversion
Input TSV (tabs shown as →):
name→email→age Alice Johnson→alice@example.com→29 Bob Smith→bob@example.com→35
Converted CSV:
name,email,age Alice Johnson,alice@example.com,29 Bob Smith,bob@example.com,35
Handling Commas in Data
When TSV data contains commas, the converter automatically wraps those fields in quotes:
product→description→price Widget A→Powerful, feature-rich widget→12.99 Widget B→Small, portable, lightweight→24.99
product,description,price Widget A,"Powerful, feature-rich widget",12.99 Widget B,"Small, portable, lightweight",24.99
Database Export Example
Database query results exported as TSV (common in PostgreSQL, MySQL, and SQLite):
id→created_at→status→notes 1001→2026-01-15→active→Customer since January 1002→2026-02-20→pending→Needs review, waiting on docs 1003→2026-03-10→inactive→Account closed per request
id,created_at,status,notes 1001,2026-01-15,active,Customer since January 1002,2026-02-20,pending,"Needs review, waiting on docs" 1003,2026-03-10,inactive,Account closed per request
CSV Quoting and Special Characters
A proper TSV to CSV converter must handle several edge cases in CSV formatting:
Commas in Values
Any value containing a comma gets wrapped in double quotes to prevent it from being misinterpreted as a column boundary.
Embedded Quotes
If a TSV value contains double quotes, they're escaped by doubling them ("") in the CSV output, following RFC 4180.
Multi-line Values
Tab-separated values containing newlines are preserved. The converter wraps these in quotes so the CSV represents them correctly.
Leading/Trailing Whitespace
TSV values may have leading or trailing whitespace that should be preserved. The converter preserves whitespace and quotes values that need it.
FAQ
What is the difference between TSV and CSV?
TSV uses tabs as delimiters, CSV uses commas. TSV is common for database exports; CSV is more universally supported across spreadsheet and data tools.
Why convert TSV to CSV?
CSV is more widely supported by data analysis tools, spreadsheet applications, and import features. Converting ensures broader compatibility.
Does the converter handle quoted fields?
Yes. FormatList's TSV to CSV converter correctly handles quoted fields, including commas, newlines, and embedded quotes within quoted values.
Can I convert large TSV files?
The converter handles files up to your browser's memory limit. For very large files, consider splitting them first or using command-line tools.
How do I convert TSV to CSV online?
Use FormatList's TSV to CSV converter. Paste your TSV data and get CSV output instantly. No signup required.
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