Convert TSV to CSV

Convert tab-separated data into comma-separated CSV

TSV Input

CSV Output

CSV output will appear here...

How to Use This Tool

This tool converts TSV (tab-separated values) into CSV format. Paste or upload your TSV file and get clean CSV output instantly.

Provide your TSV — Paste tab-separated text or drop a .tsv file.
Get your CSV — The converted output appears instantly. Copy or save the result.

FAQ

2 questions

Does this tool upload my data?

No. It runs entirely in your browser using JavaScript. Your data is never sent to a server.

What is the difference between TSV and CSV?

TSV uses tab characters to separate values, while CSV uses commas. Both are plain text formats for tabular data.

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Add a header row to a CSV that doesn't have one

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Replace sensitive column values with fake data

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Compare two CSV files and highlight the differences

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Count the number of columns in your CSV

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Export CSV data to .xlsx spreadsheets

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Get data type, null count, unique count, and common values per column

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Keep only the columns you need from your CSV

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Find and extract all phone numbers from your text or CSV

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Find rows in one file that are missing from another

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Mask or remove sensitive values from selected columns

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Remove the header row from your CSV

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Sort rows by any column, ascending or descending

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Break large CSVs into smaller chunks

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Get the row count, column count, and size of your CSV

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Switch headers between camelCase, snake_case, kebab-case, and more

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Convert CSV files to clean, structured JSON

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Convert CSV bank transactions into QuickBooks format

Extract URLs

Find and extract all URLs from your text or CSV

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Find rows that appear in both CSV files

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Find and eliminate duplicate rows

Rename Columns

Change the header names of your CSV columns

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Split a CSV into multiple files based on column values

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Delete rows that are completely empty

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Row Counter

Quick count of rows, columns, and empty cells

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Pick a random sample of rows from your CSV

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Add a new column with a default value to your CSV

Count Values

Count the number of non-empty values in each column

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Replace empty cells with a default value

First N Rows

Extract the first N rows from your CSV

Find and Replace

Search for values in your CSV and replace them

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Extract the last N rows from your CSV

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Convert Quicken QFX files into CSV format

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Get count, mean, min, max, and percentiles for numeric columns

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Extract a range of rows by start and end position

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Split one column into two columns by a delimiter

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Calculate the total of all values in each numeric column

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Add a sequential row number column to your CSV

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Calculate the average of all values in each numeric column

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Combine two columns into one using coalesce logic

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Strip HTML tags from cell values in your CSV

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Count the number of distinct values in each column

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Replace column values using a visual mapping table

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Convert Quicken QIF files into CSV format

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Strip all unnecessary whitespace from your CSV

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Randomly reorder all rows in your CSV

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Add a cumulative sum column to your CSV

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Convert all values in a column to uppercase

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Minify your CSV by removing unnecessary whitespace and formatting

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Lowercase Column

Convert all values in a column to lowercase

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Add a column showing each row's share of the total

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Check your CSV for formatting errors and structural issues

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Calculate a moving average over a sliding window of rows

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