Column Extractor | Extract Columns from CSV, TSV, or Delimited Data
Extract specific columns from CSV or TSV files online. Choose columns by number, range, or list — supports comma, tab, pipe, and custom delimiters. 100% browser-based and private.
How to Use This Tool
- 1
Paste your CSV, TSV, or delimited text data into the input box.
- 2
Select the input delimiter (comma, tab, pipe, semicolon, or custom).
- 3
Specify which columns to extract using numbers or ranges (e.g., 1,3-5).
- 4
Choose the output delimiter for the result.
- 5
Click Convert to extract and copy the selected columns.
Use Cases & Examples
CSV Field Extraction
Extract specific fields or attributes from large CSV datasets for focused analysis.
Column Reorganization
Rearrange and reorganize spreadsheet columns for cleaner export and presentation.
Delimiter Format Conversion
Convert data between comma, tab, or custom-delimited formats for compatibility.
Log & Report Filtering
Filter raw CSV logs or reports to show only relevant columns and reduce noise.
Data Import Preparation
Prepare and clean data for database upload, import, or analytical processing.
How Column Extraction Works
Each line of text is split using the input delimiter to separate individual columns.
Specified columns are selected based on user input (e.g., 1,3,5 for individual columns or 2-4 for ranges).
The extracted columns are rejoined using the chosen output delimiter.
The header row can be optionally preserved to maintain column names in structured data.
Frequently Asked Questions
Q.How do I select multiple columns?
A. Use commas for individual columns (e.g., 1,3,5) and hyphens for ranges (e.g., 2-4). You can combine them like 1,3-5,7.
Q.Can I use a custom delimiter?
A. Yes — choose 'Custom' and type any character or string as the delimiter (e.g., | or ::).
Q.What does the 'Keep Header Row' option do?
A. It ensures the first row (usually headers) always appears in the output, regardless of the selected columns.
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