Column Extractor
Options
Configure column extraction settings
Input
Output
Related Tools
What is the Column Extractor Tool?
The Column Extractor tool allows you to select and extract specific columns from delimited text data like CSV, TSV, or any custom-delimited format. Specify which columns you need by number or range, and output them with your preferred delimiter.
Features include support for multiple input delimiters (tab, comma, semicolon, pipe, space, or custom), flexible column selection syntax (single columns, ranges, or combinations), custom output delimiters, and special handling for header rows.
All processing happens directly in your browser, ensuring your data remains private and secure. The tool processes your data instantly as you adjust settings.
Common Uses for Column Extractor
Data Cleanup
Remove unwanted columns from CSV or TSV exports before importing into other systems. Keep only the data fields you need.
Spreadsheet Preparation
Extract specific columns to create focused datasets for analysis. Reduce large spreadsheets to just the relevant information.
Log Processing
Parse log files with fixed-column formats to extract timestamps, error codes, or specific data fields for troubleshooting.
Format Conversion
Convert between delimiter formats (e.g., tab to comma) while selecting only the columns you need for the target system.
Frequently Asked Questions
How do I specify which columns to extract?
Use column numbers starting from 1. You can specify single columns (1, 3, 5), ranges (1-3), or combinations (1, 3-5, 7). The columns will be extracted in the order specified.
What delimiters are supported?
Built-in support includes tab (TSV), comma (CSV), semicolon, pipe (|), and space. You can also specify any custom delimiter character for specialized formats.
How does header handling work?
Enable "First Row is Header" to treat the first line specially. You can then choose whether to include the header row in the output or skip it entirely.
Can I change the output delimiter?
Yes, you can set any output delimiter independent of the input delimiter. This lets you convert between formats, such as extracting from a TSV and outputting as CSV.
Is my data secure?
Yes, all data processing happens directly in your browser. Your data is never sent to any server or stored anywhere. This ensures complete privacy for sensitive information.