peartools

CSV Column Extractor

Paste a CSV and pull out a single column by its header name or position. The delimiter is detected for you, quoted values stay intact, and you can remove duplicates and blank cells before you copy the result. It all runs in your browser, so your data stays on your device.

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Column values

What the CSV column extractor does

This tool reads a block of CSV text and returns the values from one column. You pick the column by its header name, or by position when there is no header. It parses the file properly, so a value with a comma, a quote, or a line break inside it still counts as a single field and comes out whole. It detects whether the file is separated by commas, tabs, semicolons, or pipes, and it can trim spaces, skip blank cells, and remove duplicates. Paste, pick a column, and copy. That is the whole job.

Why use our CSV column extractor

  • ·Free. No signup, no paywall, no limits.
  • ·Real CSV parsing. Quoted values with commas or line breaks stay in one piece.
  • ·Auto delimiter. Commas, tabs, semicolons, and pipes are detected for you.
  • ·Clean output. Remove duplicates, skip blanks, and pick the separator you want.
  • ·Runs in your browser. Nothing is uploaded, and it works offline.

How to use it

  1. 1

    Paste your CSV

    Drop your CSV into the box at the top. It can be a small snippet or a full export from a spreadsheet, a database, or an app. The row and column counts appear underneath as soon as the tool reads it.

  2. 2

    Pick the column and delimiter

    Choose the column you want by its header name, or by position if there is no header. The delimiter is set to auto detect, which handles commas, tabs, semicolons, and pipes on its own. Change it by hand if your file uses something unusual.

  3. 3

    Extract and copy the column

    Click Extract column to pull that one column into the output box. Copy it to your clipboard, download it as a .txt file, or download it as a one column CSV.

Who uses a CSV column extractor

Anyone who has a CSV but only wants one field out of it can use one. These are the most common cases:

  • ·Analysts and spreadsheet users. Pull a single column, like every email or every order id, out of a large export without opening the whole file in a spreadsheet and deleting the other columns by hand.
  • ·Developers. Grab one field from a CSV to paste into a query, a config file, or a test fixture. The proper CSV parser keeps values with commas or quotes inside them intact.
  • ·Marketers and sales teams. Turn a contact export into a clean list of emails or phone numbers to paste into a campaign tool, with duplicates removed in one click.
  • ·Anyone with a messy export. Some exports use tabs or semicolons instead of commas. Auto detect figures out the separator so you get the right column without guessing.

Frequently asked questions

How do I extract one column from a CSV?
Paste your CSV into the input box, choose the column you want from the Column list, and click Extract column. The values from that column appear in the output box, ready to copy or download. Everything runs in your browser, so nothing is uploaded.
Does it handle commas and quotes inside a field?
Yes. The tool uses a proper CSV parser that follows the common RFC 4180 rules. A value wrapped in quotes can contain commas, line breaks, and doubled quotes, and it still counts as a single field, so the column comes out correct.
What delimiters are supported?
Comma, tab, semicolon, and pipe. Auto detect looks at the first row and picks the one that splits it into the most columns, which is right for almost every file. You can also set the delimiter by hand if you know what your file uses.
What if my CSV has no header row?
Turn off the 'First row is a header' option. The column picker then lists the columns by position (Column 1, Column 2, and so on) and the first row is treated as data instead of a set of names.
Can I remove duplicates and blank values?
Yes. Turn on 'Remove duplicates' to keep one copy of each value, and 'Skip empty' to drop blank cells. 'Trim spaces' removes leading and trailing spaces from every value. Mix and match to get the clean list you need.
How do I choose the output format?
The Separator option decides how the extracted values are joined: one per line, or split by comma, semicolon, space, or tab. You can copy the result, download it as a .txt file, or download it as a one column CSV with a header.
Is the CSV column extractor free and private?
Yes on both. There is no signup and no limit, and all the work happens in your browser. Your CSV is never sent to a server, so the tool keeps working even after you go offline.