TSV to CSV Converter
Paste tab-separated values and instantly convert TSV to CSV. The comma-separated output appears as you type — then copy or download it. Everything runs in your browser.
- 01Convert tab-separated values (TSV) to comma-separated CSV instantly as you type.
- 02Quotes and escaping follow the RFC 4180 standard, so the CSV opens cleanly in Excel.
- 03Copy the CSV or download it as a .csv file in one click.
- 04Values that contain commas, quotes, or line breaks are automatically quoted for you.
- 05100% private — your TSV data never leaves your browser.
TSV to CSV Converter
Load an example
4 rows × 3 columns
Why Use This TSV to CSV Converter
Instant, Live Conversion
The CSV updates as you type or paste your TSV — no Convert button to press and no waiting. Edit a tab-separated cell and watch the comma-separated output change in real time.
Correct CSV Quoting
When you convert TSV to CSV, any value that contains a comma, double quote, or line break is automatically wrapped in quotes and escaped following the RFC 4180 standard, so the file opens cleanly in Excel, Google Sheets, and any CSV parser.
Preserves Every Column
Each tab in your TSV becomes one comma in the CSV, so the column structure is preserved exactly. Empty cells, leading columns, and ragged rows are all kept as written.
Handles Real Tab-Delimited Data
Paste exports from spreadsheets, databases, or copied-from-Excel ranges — anything that uses tabs between fields. The TSV to CSV converter reads the tab delimiter and re-delimits it to commas without touching your values.
Copy or Download
Copy the CSV to your clipboard with one click, or download it as a ready-to-use .csv file named data.csv. No account, no email, and no limits on how much you convert.
Private and Offline-Friendly
All TSV to CSV conversion happens locally in your browser using JavaScript. Your tab-separated data is never uploaded to a server, so it is safe to use with confidential records.
Converting TSV to CSV
TSV (Tab-Separated Values) and CSV (Comma-Separated Values) are both plain-text table formats: each line is a row and each field is separated by a delimiter. TSV uses a tab character between columns, while CSV uses a comma. Converting TSV to CSV swaps the delimiter so your data works with the many tools, importers, and APIs that expect comma-separated input.
Whether you exported a tab-separated file from a spreadsheet, copied a range out of Excel, or received TSV from an API, this TSV to CSV converter gives you clean, correctly-escaped CSV instantly.
- What Gets Converted
- Every tab in your input becomes a comma in the output. The first line is treated as the header row just like the rest, so column names and data are re-delimited consistently from tab-separated to comma-separated.
- Why CSV Instead of TSV
- Many spreadsheet importers, BI tools, and database load commands default to CSV. Converting TSV to CSV makes your tab-delimited export load without extra configuration, and CSV is the format most data tools recognize automatically.
- Safe Quoting
- Because the comma is now the delimiter, any cell that already contains a comma would break the columns. This converter wraps those cells (and cells with quotes or newlines) in double quotes so the CSV stays correctly aligned.
- Encoding
- The output is UTF-8 text, so accented characters, emoji, and non-Latin scripts in your TSV are preserved exactly when they are written to the CSV file you copy or download.
How to Convert TSV to CSV
- 01
Paste your TSV
Paste or type your tab-separated values into the input box on the left. Each row goes on its own line and columns are separated by tab characters. You can also load one of the examples to see the expected shape.
- 02
Let it convert automatically
The CSV appears instantly on the right as the tool replaces every tab with a comma. There is no button to press — the TSV to CSV conversion is live as you edit.
- 03
Review the CSV
Check the comma-separated output, including the header row. The row and column count is shown below the output so you can confirm nothing was dropped.
- 04
Copy or download
Click Copy to put the CSV on your clipboard, or Download CSV to save it as a data.csv file ready to open in Excel or Google Sheets.
Tips for TSV to CSV Conversion
Make Sure Columns Use Tabs
This tool converts tab-separated input. If your file uses spaces or multiple spaces between columns instead of a real tab character, the columns will not split correctly — paste true TSV for clean results.
Expect Quotes Around Commas
Cells that contain a comma are wrapped in double quotes in the CSV. That is correct CSV behavior and keeps the value in a single column; spreadsheets strip the quotes on import.
Keep the Header Row
If your TSV has a header line with column names, leave it in. It is converted to the first CSV row so your spreadsheet or importer can label the columns.
Watch for Trailing Tabs
A stray tab at the end of a line creates an extra empty column. Trim trailing tabs in your source if you see an unexpected extra comma at the end of each CSV row.
Mind UTF-8 in Excel
The download is UTF-8. If Excel shows garbled accented characters, import the CSV via Data → From Text and select UTF-8 encoding.
Convert in Chunks if Huge
Everything runs in your browser, so extremely large files depend on your device's memory. For very large TSV exports, convert in batches to keep things instant.
TSV and CSV Reference
TSV vs CSV
TSV and CSV are both delimited-text table formats. TSV uses a tab between fields, which avoids most quoting because tabs rarely appear inside values. CSV uses a comma, which is more widely supported by importers but needs quoting when a value contains a comma. Converting TSV to CSV is a routine step when a tool only accepts comma-separated input.
When to convert TSV to CSV
- Load a tab-separated export into a tool or importer that only accepts CSV.
- Share tab-delimited data as a standard .csv file colleagues can open anywhere.
- Normalize a copied-from-Excel range (which is tab-separated) into CSV.
- Feed comma-separated input to a database load command or BI tool.
RFC 4180 quoting
The CSV standard requires fields containing a comma, double quote, or line break to be wrapped in double quotes, with embedded quotes doubled. Because TSV rarely needs quotes, this converter applies those CSV rules automatically as it re-delimits your data.
Conversion Rules
Tab → comma
Each tab character between columns is replaced with a comma.
a\tb\tc → a,b,c
Rows stay rows
Each line of TSV becomes one line of CSV, header included.
name\tage / Alice\t30 → name,age / Alice,30
Comma in a cell → quoted
A value that already contains a comma is wrapped in double quotes.
Fast, light → "Fast, light"
Quote in a cell → escaped
Embedded double quotes are doubled and the cell is quoted.
He said "hi" → "He said ""hi"""
TSV to CSV Converter FAQ
Q01How do I convert TSV to CSV?
Paste your tab-separated values into the input box. The tool instantly converts TSV to CSV by replacing each tab with a comma, then quoting any cells that contain commas, quotes, or line breaks. Click Copy or Download CSV — everything happens in your browser.
Q02What is the difference between TSV and CSV?
Both are plain-text table formats where each line is a row. TSV separates columns with a tab character, while CSV separates them with a comma. Converting TSV to CSV simply changes the delimiter so the data works with tools that expect comma-separated values.
Q03Will values that contain commas break the CSV?
No. When a cell from your TSV already contains a comma, this converter wraps it in double quotes following the RFC 4180 standard, so it stays in a single column. Cells with quotes or newlines are escaped the same way.
Q04Does my TSV file get uploaded to a server?
No. The TSV to CSV conversion runs entirely in your browser with JavaScript. Your data is never sent or stored anywhere, so it is safe to convert private or sensitive tab-separated data.
Q05Will the CSV open correctly in Excel and Google Sheets?
Yes. The output is standard comma-separated CSV with proper quoting, so it opens cleanly in Excel, Google Sheets, Numbers, and any other spreadsheet or CSV parser.
Q06What if my data uses spaces instead of tabs?
This converter looks for tab characters between columns. If your file is space-aligned rather than tab-separated, the columns will not split correctly. Make sure your input is true TSV with real tab characters.
Q07Is there a size limit for TSV to CSV conversion?
There is no fixed limit, but because everything runs in your browser, very large files (tens of megabytes) depend on your device's memory. For typical exports and copied ranges the conversion is instant.
Q08Is this TSV to CSV converter free?
Yes, completely free with no signup, no watermark, and no limits. Convert as much TSV to CSV as you like, online and in your browser.