What This Converter Does

This tool transforms CSV (comma-separated values) into TSV (tab-separated values) format. It properly parses CSV quoting rules, handles embedded commas within quoted fields, and outputs clean tab-delimited data ready for databases, spreadsheets, or data processing tools.

When to Use TSV Instead of CSV

Text data with commas: If your data contains lots of commas (like addresses or descriptions), tabs work better as delimiters since they rarely appear in normal text.

Database imports: PostgreSQL COPY command and MySQL LOAD DATA often prefer TSV for simpler parsing without quote handling.

Unix tools: Command-line tools like awk, cut, and column work naturally with tab-delimited data using the -f and -d flags.

Google Sheets imports: TSV imports cleanly without ambiguity about comma handling in different locales.

Programming language parsing: Many languages have simpler TSV parsers since tabs don't require quote escaping logic.

How the Conversion Works

The tool uses the PapaParse library to properly parse CSV according to RFC 4180 rules. It handles:

Quoted fields: Fields wrapped in quotes can contain commas, which aren't treated as delimiters.

Escaped quotes: Double quotes inside quoted fields ("") convert to single quotes in the output.

Embedded newlines: Multi-line values within quoted fields are preserved correctly.

After parsing, the tool outputs each field separated by a tab character (\t) instead of a comma.

Example Conversion

Input CSV:

name,description,price
"Widget, Large","A large widget, useful for things",19.99
"Gadget ""Pro""","The best gadget",29.99

Output TSV (tabs shown as →):

name→description→price
Widget, Large→A large widget, useful for things→19.99
Gadget "Pro"→The best gadget→29.99

Technical Details

TSV format is simpler than CSV in some ways — tabs rarely appear in data, so quoting is often unnecessary. However, this converter still properly quotes any TSV fields that contain tabs, preserving data integrity.

Output is UTF-8 encoded, supporting all Unicode characters including accented letters, emojis, and non-Latin scripts.

Limitations

Tab characters in data: If your CSV contains literal tab characters within fields, the output may have ambiguous delimiters. This is rare but possible.

File size: Works best with files under 50MB. Larger files depend on browser memory for parsing.

Frequently Asked Questions

What's the difference between CSV and TSV?

CSV uses commas as field separators; TSV uses tabs. TSV is often simpler because tabs rarely appear in data, while commas are common in text.

Can I convert TSV back to CSV?

Yes, use the TSV to CSV tool. It reverses the process, converting tab delimiters back to comma delimiters with proper quoting.

Will Excel open TSV files?

Yes. Excel can open TSV files directly. You may need to use Data → From Text/CSV and select tab as the delimiter during import.

Does this preserve UTF-8 encoding?

Yes. Output is UTF-8 encoded, preserving accented characters, emojis, and non-Latin scripts.