Convert TSV to CSV Online

CONVERT TSV to CSV ONLINE

1) Upload TSV file to convert

Drop files here, or Click to select

0 %

Allowed file types: fasta, qif, ofx, iif, srt, ics, excel, ris, bib, ods, xls, xlsx, xlsm, csv, tsv, tab, xlsb, xltx, xlr, pxl, qpw, wb3, wq1, dbf, wk3, 123, mdb, evtx, pages, numbers, sqlite

2) Set converting TSV to CSV options

3) Get converted file

DOWNLOAD CONVERTED FILE

Full version

Get Total Excel Converter to convert XLS, XLSX, ODT, XLSM, etc. safely.

Convert Excel Files in Batch!;
Convert TSV to CSV and in many other formats
Convert hundreds of spreadsheets in 3 clicks;
Both MS Office and OpenOffice files;
Have a desktop converter that works without Internet;
Keep your files safe, don't send them to the web;
Get more accurate results with the more poweful engine.

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Total Excel Converter

Total Excel Converter supports almost all Excel extensions: XLS, XLSX, XLSM, XLSB, XLT, XLTM, XLTX, XLK, XLW. When the new Office is released, we will add new file types too.

With Total Excel Converter you can convert Excel to PDF and add a digital signature in one go.

Total Excel Converter can convert each page of your spreadsheet into a separate file.

Tell Total Excel Converter to copy original time stamps if you don't want to change the date.

Have an outdated Microsoft Office 2003? Update all your old files to the new format in one go. Convert XLS files to XLSX in batches.

Total Excel Converter will help you to convert Excel 2003 XML Files (rare option!)

Total Excel Converter has a built-in renamer to give your files new descriptive names. Include a counter, a date or worksheet name into the file name and your files will be in perfect order.

Convert Excel spread sheets via our most straightforward interface.

The widest list of output file types: DOC, PDF, HTML, MHT, XHTML, CSV, TXT, TIFF, JPEG, SVG, RTF, XML, XLS, XLSX, ODS, ODT, Lotus, DIFF, SYLK, LATEX, SQL, DBF, Access!

Total Excel Converter can combine several Excel spread sheets into one TIFF or PDF file.

Want to quickly find a file? Total Excel Converter helps you to preview any document you select.

Add your logo or any other image to the header or the footer of the output file.

Want more order? Add page counters or a date to every page of the output files. Sequential numbering of several folders is avaialble.

Total Excel Converter can copy original time stamps if you want to keep them.

When you convert Excel to PDF you can set user permissions, password-protect your files or sign with a digital signature. Get PDF, PDF/A and non-searchable PDFs.

Total Excel Converter can be run via command line (get the ready-to-use command line from GUI).

How to convert TSV to CSV?

💾 Upload Your File: Go to the site, click on «Upload File,» and select your TSV file.

✍️ Set Conversion Options: Choose CSV as the output format and adjust any additional options if needed.

Convert and Download: Click 👉«Download Converted File»👈 to get your CSV file.

Cloud Based

There is no need to install any software to convert TSV to CSV with CoolUtils. Simply access the internet, and you can easily convert your file online with our service.

Secure

Our hardware operates in top-tier, highly secure data centers equipped with advanced electronic surveillance and multi-factor access control systems.

Ease of Use

Converting TSV to CSV online has never been so simple. Drop your tab-delimited file and the converter produces a standard comma-delimited CSV — the universal format accepted by Excel, Google Sheets, pandas, Salesforce, and virtually every data tool. Delimiter replaced, UTF-8 encoding preserved. No software required.

Privacy

We understand the importance of privacy, which is why we've developed a comprehensive privacy policy detailing how we handle your files and personal information. You can read the policy here.

TSV File

File extension	.TSV
Category	Document File
Description	TSV facilitates exchange of tabular database between utilities using a variety of extensions. TSV files look like textual tables and are compiled of records (lines), which, in turn, are made up of fields. Each field forms a succession of characters, except TAB symbols, which serve as field separators. The top line is indeed the header, since it sets names for each field and defines their function, and the remaining lines have as many fields as the top one. TSVs can be rendered in utilities designed for creating databases and electronic tables. These materials can be conveniently exported to Excel.
Associated programs
Developed by
MIME type	text/tab-separated-values
Useful links	More detailed information on TSV files
Conversion type	TSV to CSV

CSV File

File extension	.CSV
Category	Document File
Description	CSV is a plain text format used for representing database tables. Each data box (cell) is enclosed in commas. Each line is a table row with data cells. It is a perfect format for transporting tables from one application to another. CSV files can be edited in OpenOffice Calc, MS Excel and many others. Being a plain text in actual fact, CSV tables are compatible with various text editing programs. It doesn't support formatting, so any data structuring is made with the use of special characters.
Associated programs	The CSV file format is very simple and supported by almost all spreadsheets and database management systems
Developed by	Microsoft
MIME type	text/csv
Useful links	More detailed information on CSV files

2026-01-30

Our ETL pipeline expects comma-separated input but the source system exports TSV — swapping the delimiter with this converter let us plug the files straight into the pipeline without writing a custom script.

Tomás Ružička

2026-03-25

Bioinformatics tools like GATK and samtools export TSV annotation tables; converting to CSV made them compatible with Pandas and downstream data tools that default to comma delimiters.

Aiko Yamamoto

2026-05-11

I migrate data between two SaaS platforms — one exports TSV and the other only imports CSV; this converter handles the format switch in bulk without losing any field values or row counts.

Nadia Osei

Rating TSV to CSV

4.7 (380 votes)Rate It

Convert TSV to CSV — Frequently Asked Questions ▼

What is the difference between TSV and CSV?

TSV uses a tab character as the field delimiter; CSV uses a comma. Both formats store tabular data as plain text. CSV is more widely supported by tools and applications, but requires quoting when field values contain commas.

What happens to fields that contain commas in the original TSV file?

The converter wraps any field containing a comma in double-quote characters, following the RFC 4180 CSV standard. This ensures the output is correctly parsed by all CSV readers.

Can I convert a .txt file that uses tabs as separators?

Yes. Tab-separated .txt files are functionally identical to .tsv files and work with this converter. Many database export tools produce .txt files with tab delimiters.

Will the header row be preserved in the CSV output?

Yes. The first row of the TSV file is treated as a regular row in the output. If it contains column names, they appear as the first row of the CSV, as expected by Excel and most data tools.

Does the converter handle multi-line fields (fields containing newlines)?

Fields containing embedded newlines are enclosed in double quotes in the CSV output per RFC 4180. This ensures multi-line cell content is not broken across rows.

What encoding does the output CSV use?

The output CSV uses UTF-8 encoding, which preserves all Unicode characters including accented letters, Chinese, Arabic, and other non-ASCII scripts.

How do I convert hundreds of TSV files to CSV automatically?

Total Excel Converter ($29.90) processes entire folders: TotalExcelConverter.exe C:\tsv_folder C:\csv_output /ConvertTo csv /ProcessRecursively. It handles batch conversion from the command line without any manual steps.

Convert TSV to CSV Online

Data analysts, developers, and database administrators convert TSV files to CSV when importing tabular data into tools that expect comma-delimited input, such as Excel, Google Sheets, or most ETL pipelines.

Correct delimiter replacement — tabs are replaced with commas, with proper quoting of fields that contain commas
Excel and Sheets ready — CSV is the standard import format for both Microsoft Excel and Google Sheets
Preserves column structure — headers and data rows are maintained exactly as in the source file
No manual editing — no need to find-and-replace tabs manually in a text editor
Handles special characters — fields with newlines or commas are correctly quoted in the output

What Is TSV?

TSV (Tab-Separated Values) is a plain-text tabular format that uses the tab character (ASCII 0x09) as the field delimiter. It is produced by database exports, bioinformatics tools, and some spreadsheet applications when exporting data. TSV avoids the comma-quoting problem but is not accepted by tools that strictly expect CSV input.

What Is CSV?

CSV (Comma-Separated Values) is the most widely supported plain-text format for tabular data. It uses commas as delimiters and double-quotes to escape fields containing commas or newlines. CSV is natively supported by Excel, Google Sheets, LibreOffice Calc, pandas, R, and virtually every database and ETL tool.

Online Converter vs Desktop Converter

Feature	Online (this page)	Total Excel Converter (desktop)
Batch conversion	✓ Single file	✓ Entire folders, recursive
File size limit	Up to 50 MB	No limit
Automation / scripting	✗	✓ Command-line, .bat, Task Scheduler
Files stay local	✗	✓ No upload required
Price	Free	From $29.90

Batch CLI example: TotalExcelConverter.exe C:\tsv_files C:\csv_output /ConvertTo csv /ProcessRecursively

How to Convert TSV to CSV

Click Choose File and select your .tsv or .txt file
The format is detected automatically
Select CSV as the output format
Click Convert — processing takes a few seconds
Click Download to save your CSV file
Open the CSV in Excel or a text editor to verify the delimiter conversion is correct

When Do You Need TSV to CSV?

Excel import — Excel's default open dialog handles CSV automatically; TSV requires a manual import wizard
ETL pipelines — most data pipeline tools expect CSV as the standard plain-text tabular format
Database loading — SQL LOAD DATA and similar commands default to CSV delimiter settings
API data exchange — REST APIs and webhook payloads that accept file uploads often require CSV
Bioinformatics data — genomics tools often export TSV; downstream analysis tools often require CSV

Feature	Online Converters	CoolUtils Desktop	Excel Built-in	Other Software
Batch Conversion	Limited	✅ Unlimited	Manual only	Limited
File Size Limit	1-5MB	✅ No limits	System dependent	Varies
Privacy & Security	Upload required	✅ 100% offline	✅ Local only	Varies
Conversion Speed	Internet dependent	✅ Fast local processing	Slow	Medium
Advanced Options	Basic	✅ Full customization	Limited	Basic
Cost	Free/Premium	One-time purchase	Requires Office	Subscription
Formatting Preservation	Good	✅ Excellent	Good	Varies
Multiple Formats Support	Limited	✅ 40+ formats	Few formats	Limited

Command line support
API integration
24/7 offline availability
Enterprise licensing

Convert from TSV

Using CoolUtils, it is possible to convert TSV files to a variety of other formats:

TSV to PDF

TSV to XLS

Convert to CSV

Using CoolUtils, it is possible to convert a variety of other formats to CSV files:

Converted Files:

154,666,625 / 4,720 TB

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