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CSV Column Keeper

Professional CSV column keeper with instant selection. Keep only the columns you need and download cleaned data instantly.

Instant Selection
100% Private
Completely Free

Upload or paste CSV to see columns

Your privacy is protected! No data is transmitted or stored.

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Real-World Use Cases

When You Need CSV Column Keeper

Common scenarios where column selection is essential

Data Privacy & Security

Keep only safe columns like Name and Email, remove sensitive data like SSN and passwords.

API Response Cleanup

Keep only necessary fields from API responses to reduce payload size and improve performance.

Report Generation

Keep only relevant columns for stakeholder reports and presentations.

Data Sharing & Collaboration

Share only necessary columns with team members or external partners safely.

Database Import Optimization

Keep only needed columns before importing CSV data into databases.

Data Consolidation

Keep only matching columns before merging datasets from multiple sources.

FAQ

Frequently Asked Questions

Find answers to common questions about column selection

CSV column keeper lets you select and keep only the columns you need from your CSV file. Simply check the columns you want to keep and click "Keep Columns" to get a cleaned CSV with only those columns.

CSV Column Keeper lets you select columns to KEEP, while CSV Column Remover lets you select columns to REMOVE. Both achieve the same result but from different perspectives. Use whichever feels more intuitive for your workflow!

Yes! The header row is automatically preserved. Only the columns you select to keep will be included in both the header and all data rows.

Yes! You can select all columns to keep. This will return your CSV unchanged, which is useful if you want to verify the data before making changes.

Yes! Our CSV Column Keeper is 100% client-side, meaning all processing happens in your browser. Your data is never sent to any server and is not stored anywhere. Your privacy is completely protected.

We support CSV (.csv) and plain text (.txt) files. You can also paste CSV data directly into the input field. The tool automatically detects the format and processes it accordingly.

The selection is instant and cannot be undone in the tool. However, you can always reload your original CSV and try again. We recommend keeping a backup of your original file.

Yes! After keeping columns, you can download the cleaned CSV, copy it to clipboard, or export it as JSON format. All options are available with a single click.

Column Keeper: You select columns to KEEP. Unselected columns are removed.

Column Remover: You select columns to REMOVE. Unselected columns are kept.

Both achieve the same result but from different perspectives. Use whichever feels more intuitive for your workflow!

Yes! You can select all columns to keep. This will return your CSV unchanged, which is useful if you want to verify the data structure before making changes.

Data Privacy: Keep Name, Email, Phone; remove SSN, Password, Address
API Cleanup: Keep ID, Name, Status; remove internal fields
Reports: Keep only relevant columns for stakeholders
Data Sharing: Share only necessary columns with partners
Database Import: Keep only needed columns before importing

No! The columns are kept in the same order as they appear in your original CSV. The tool preserves the original column sequence.

Yes! The tool supports CSV files up to 50MB. Since processing happens in your browser, larger files may take a moment to process, but the tool handles them efficiently.
Powerful Features

Everything You Need, Zero Hassle

Keep columns with our powerful and flexible tools

Easy Selection

Select columns with simple checkboxes. Use Select All/Deselect All for quick actions!

Live Preview

See cleaned data instantly before downloading!

Multiple Exports

Export as CSV or JSON. Perfect for your projects!

How It Works

Simple, Fast, Effortless

Keep columns in just a few clicks

01
Upload CSV

Upload or paste your CSV file into the input field.

02
Select Columns

Check the columns you want to keep!

03
Keep Columns

Click Keep Columns and watch your data get cleaned instantly!

04
Download Data

Export as CSV or JSON. Perfect for your projects!