TSV to CSV Converter
Convert Tab-Separated Values (TSV) to Comma-Separated Values (CSV)
Input TSV Data
Paste your TSV code here...
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What the TSV to CSV Converter Does
TSV (Tab-Separated Values) uses a tab character to separate each column and a newline to separate each row. CSV (Comma-Separated Values) uses a comma instead. This tool reads your tab-separated data, replaces each tab delimiter with a comma, and hands back valid CSV text.
The tool also handles a tricky detail: when a field already contains a comma, it wraps that value in double quotes so the comma is not mistaken for a column break. All of this runs in your browser, so your data stays on your machine.
Why Convert TSV to CSV at All
Tab characters are invisible on screen, which makes TSV files harder to inspect and edit by hand. Many programs, import wizards, and older systems expect commas by default. Converting the delimiter removes friction when you move data between tools.
- CSV is the default import format for most spreadsheet apps and databases.
- Comma delimiters are visible, so you can spot structure problems by eye.
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Some upload forms reject
.tsvbut accept.csv. - CSV is widely supported by scripting and reporting libraries.
How to Convert a TSV File to CSV
The converter accepts data two ways: paste it directly, or load a file from disk. When you paste from Excel or Google Sheets, those apps copy cells as tab-separated text, so the input is already in the right shape.
- Open the TSV to CSV Converter page.
-
Paste your tab-separated data into the input box, or upload a
.tsvfile. - Read the CSV result in the output area as it renders.
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Click "Copy" to send the text to your clipboard, or "Download" to save a
.csvfile.
The first row is treated as the header row, so column names carry through unchanged. There is nothing to configure and no account to create.
How This Tool Differs From Alternatives
Opening a TSV file in a full spreadsheet program works, but it adds steps: import, choose a delimiter, then re-export. Command line utilities do the job but require setup. This page does one focused task and runs where you already are.
- Conversion happens in the browser, so no file leaves your device.
- Fields containing commas are quoted automatically, which avoids broken rows.
- You can paste straight from a spreadsheet without saving a file first.
- It sits beside related tools like the CSV to TSV Converter for round-trip work.
When to Use It
Reach for this converter whenever a downstream tool prefers commas over tabs. That covers spreadsheet imports, database loading, and handing data to teammates who expect CSV. If you instead need structured output for code, look at the JSON to CSV Converter or browse the full set of developer tools .
FAQ
It is a tool that reads tab-separated data and rewrites it with commas between fields. TSV uses tab characters as delimiters while CSV uses commas. The converter swaps one delimiter for the other and preserves your rows and header, so the structure stays the same while the format changes.
The tool scans your text line by line. On each line it locates the tab characters that separate columns and replaces them with commas. Then it checks each value: if a field already contains a comma, that value gets wrapped in double quotes. This keeps the field intact and stops the extra comma from creating a false column break.
No. The conversion runs in your browser using local JavaScript. Your pasted text or uploaded file is processed on your own device, and nothing is transmitted anywhere. This means you can convert sensitive records without them leaving your computer, and the tool keeps working even if your connection drops after the page loads.
Yes. When you copy a range of cells from a spreadsheet, the application places the data on your clipboard as tab-separated text. That format matches TSV, so pasting it into the input box works without any extra step. The first pasted row becomes the header row in the resulting CSV output.
They are quoted. Because CSV treats commas as column separators, a value like "Smith, John" would otherwise split into two columns. To prevent that, the converter wraps any field that contains a comma in double quotes. Readers of the CSV then understand the quoted comma is part of the value, not a delimiter.
No. The first row is treated the same as any other row during conversion, with its tabs replaced by commas. It keeps its position as the header, so the column names you started with appear at the top of the CSV. You do not need to mark or flag the header in any way.
Both store table data as plain text with one record per line. The only difference is the delimiter. TSV places a tab character between columns, while CSV places a comma. Tabs rarely appear inside normal text, so TSV needs less quoting. CSV is more widely accepted by import tools, which is why converting between them is common.
Yes, in the other direction. The CSV to TSV Converter reads comma-separated data and replaces each comma delimiter with a tab. That is useful when a target program expects tabs, or when you want to round-trip data between the two formats to check that nothing changed during conversion.
Yes. Besides CSV, tab-separated data can be converted to HTML tables, JSON, XML, and YAML using the matching tools on this site. Each one reads the same TSV input but writes a different output structure. Pick the target that fits where the data is going, such as a web page, an API payload, or a config file.
The practical limit depends on your device, since the whole conversion happens in memory inside your browser. Small and medium files convert without trouble. Very large files may slow the page because the browser holds both the input and the output at once. If you hit a limit, split the file into smaller parts and convert each one.
Two buttons sit near the output area. "Copy" places the CSV text on your clipboard so you can paste it into another program. "Download" saves the result as a
.csv
file on your device. Use Copy for quick reuse and Download when you need a stored file to upload or share later.