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Column Extractor
Delimited Column Extractor
Extract specific columns from CSV, TSV, or any delimited text. Reorder columns and export clean data.
Use commas (1,3) or ranges (1-3). 1-based indexing.
Smart Parsing
Intelligently handles various delimiters like commas, tabs, pipes, and custom characters.
Secure
Client-side processing ensures your data never leaves your browser.
Flexible Export
Reformat your data on the fly and download as a clean file.
CSV - Extract Names
Extract just the Names (Column 2) from a CSV list.
Log File - Timestamps
Extract timestamps from a pipe-delimited log file.
Reorder Columns
Swap First Name and Last Name columns.
How to Extract and Reorder Columns from CSV/Text
Data processing often requires extracting specific fields from large datasets. Whether you're working with CSV files, server logs, or custom-delimited text, the Delimited Column Extractor is designed to simplify this process. It acts like a powerful visual version of the Unix cut command or the "Text to Columns" feature in spreadsheet software, but completely in your browser.
Key Features
- Flexible Delimiters: Handle standard CSVs (comma), TSVs (tab), pipe-separated values, or define your own custom delimiter.
- Precise Extraction: Select columns by index (e.g.,
1, 3) or range (e.g.,2-5). You can even reorder columns by specifying them in your desired order (e.g.,3, 1, 2). - Data Cleaning: Automatically remove duplicate rows and sort the output alphabetically with a single click.
- Format Conversion: Change the output separator. For example, convert a CSV to a Pipe-delimited list instantly.
Common Use Cases
1. Extracting Email Addresses: Upload a CSV user export and extract just the "Email" column to create a mailing list.
2. Analyzing Log Files: Parse server logs to extract timestamps and error messages, ignoring other noisy data.
3. Reformatting Data: Swap "First Name, Last Name" to "Last Name, First Name" by reordering the columns.
Frequently Asked Questions
Is my data secure?
Yes, absolutely. This tool runs entirely in your browser using JavaScript. No data is ever sent to our servers.
How do I handle 0-based vs 1-based indexing?
This tool uses human-friendly 1-based indexing. The first column is Column 1, the second is Column 2, and so on.