Skip to main content
L
Loopaloo
Buy Us a Coffee
All ToolsImage ProcessingAudio ProcessingVideo ProcessingDocument & TextPDF ToolsCSV & Data AnalysisConverters & EncodersWeb ToolsMath & ScienceGames
Guides & BlogAboutContact
Buy Us a Coffee
L
Loopaloo

Free online tools for developers, designers, and content creators. All processing happens entirely in your browser - your files never leave your device. No uploads, no accounts, complete privacy.

support@loopaloo.com

Tool Categories

  • Image Tools
  • Audio Tools
  • Video Tools
  • Document & Text
  • PDF Tools
  • CSV & Data
  • Converters
  • Web Tools
  • Math & Science
  • Games

Company

  • About Us
  • Contact
  • Blog
  • FAQ

Legal

  • Privacy Policy
  • Terms of Service
  • Disclaimer

Support

Buy Us a Coffee

© 2026 Loopaloo. All rights reserved. Built with privacy in mind.

Privacy|Terms|Disclaimer
  1. Home
  2. CSV & Data Analysis
  3. CSV Column Filter
Add to favorites

CSV Column Filter

Filter and select specific columns from CSV files

Select only the columns you need and discard the rest. Upload a CSV, check the columns to keep, and download a trimmed file, useful when a data source gives you 50 columns but you only need 5.

Runs in your browser and files never uploadedMore csv & data analysisJump to full guide

Initializing in your browser…

You might also like

CSV Row Filter

Filter rows based on custom criteria and conditions

CSV Column Renamer

Rename CSV columns with live preview

CSV Sorter

Sort CSV data by multiple columns with custom ordering

CSV Column Filter: a worked example

You must share a dataset with a partner but strip the email and phone columns first.

Input

Keep: id, country, plan · Drop: email, phone, notes
CSV Column Filter produces

Output

A CSV with only id, country, plan, in the order you specified

Selecting columns to keep (or drop) and reordering them is a one-step way to produce a safe, minimal extract for sharing. Because it runs locally, the sensitive columns never leave your machine even momentarily.

What is CSV Column Filter?

Select only the columns you need and discard the rest. Upload a CSV, check the columns to keep, and download a trimmed file, useful when a data source gives you 50 columns but you only need 5.

How to use

  1. 1Upload your CSV file
  2. 2Check or uncheck columns to include
  3. 3Download the filtered CSV

Key features

  • Visual column picker with select-all toggle
  • Column reordering via drag-and-drop
  • Live preview of filtered output

Common use cases

  • Reducing file size

    Strip unnecessary columns from a large export to shrink the file before sharing.

  • Privacy compliance

    Remove sensitive columns (SSN, email, phone) before passing data to external teams.

  • Preparing import files

    Trim a CSV down to the exact columns a target system expects.

Frequently asked questions

Can I reorder columns at the same time?

Yes. Drag columns into the order you want and the exported file reflects that order.

Private by design

Rows and columns are parsed and transformed in memory in your browser. No record ever reaches a server.