Free Online Text Column Extractor

What Can the Text Column Extractor Do?

The Text Column Extractor is a pure frontend online tool for extracting specific columns from delimited text (CSV, TSV, space-separated, etc.). Paste your text and the tool auto-detects the delimiter and column count. Select columns by number or name, reorder them, skip empty rows, and trim whitespace. The tool provides a live data table preview and supports copying and downloading results as CSV/JSON. All processing happens locally in the browser.

Core Features

Multi-Delimiter Support: Auto-detect or manually select comma, tab, space, semicolon, pipe, and custom delimiters
Flexible Column Selection: Select by column number (1,3,5), range (1-3), or column name
Column Reordering: Specify output column order, not limited to original arrangement
Header Detection: Auto-identify first row as header for column name selection
Live Preview: Visual data table preview with selected columns highlighted

How to Use

Step 1: Select delimiter type or use auto-detection.

Step 2: Paste text in the input box, or click "Load Example".

Step 3: Enter column numbers (e.g., 1,3) in the "Columns" field or click column tags.

Step 4: Click "Extract Columns" or Ctrl+Enter, then copy or download the result.

Use Cases

Data Cleaning

Extract needed columns from CSV data, removing irrelevant fields to streamline datasets for analysis.

Log Processing

Extract key columns like timestamps, IPs, and status codes from space-delimited log lines.

Data Transformation

Convert wide tables to narrow tables, keeping only analysis-relevant columns to reduce data volume.

Report Generation

Extract report-needed columns from raw data, arrange in specified order, and export.

Extended Knowledge

CSV (Comma-Separated Values) is the most common text data format, with one record per line and fields separated by commas. TSV uses tab separators and is common in bioinformatics and log analysis. When processing delimited text, note: quoted fields may contain delimiters, newlines need special handling, and encoding issues (UTF-8 recommended). This tool uses a simple split algorithm suitable for standard format data processing.

FAQ

What delimiters are supported?

Supports comma (,), tab, space, semicolon (;), pipe (|), and custom delimiters with auto-detection or manual selection.

How do I select columns to extract?

Enter column numbers (e.g., 1,3,5) or column names, use range notation (e.g., 1-3), or click column tags to select.

Can it handle irregular text?

Yes. The tool handles rows with varying column counts, showing empty values for missing columns. You can skip empty rows and columns.

How is the header row handled?

Check the header option to treat the first row as column names, enabling selection by column name.

Is data uploaded to a server?

No. All text column extraction and processing happens locally in the browser. Data never leaves your device.

Can I export results?

Yes. Copy results or download as CSV, TSV, or JSON format.

Text Column Extractor