How do I select and reorder CSV columns?

Upload or paste your CSV and a checkbox appears for each column. Tick the columns you want to keep, then use the up/down buttons to change their order. The trimmed CSV is generated on the right, ready to copy or download.

Can I drop columns I don't need?

Yes. Unchecking a column removes it from the output, so you can keep only the columns you need and produce a smaller, cleaner CSV.

Can I freely change the column order?

Yes. Each column has up/down buttons to reorder it however you like, so you are not locked into the original column order.

No. Everything runs entirely in your browser. Your CSV is never uploaded or stored on a server.

Yes, it is completely free. No sign-up and no installation required.

CSV column selector

CSV tools

Pick which columns to keep or drop and reorder them, then download the trimmed CSV. Everything runs in your browser; your data is not uploaded.

What is this CSV column selector?

A free, browser-based tool to trim and reorder CSV columns. Upload or paste a CSV, tick the columns you want to keep, reorder them with up/down buttons, and get a clean CSV to copy or download. It's perfect for cleaning up exports that contain more columns than you need. Everything runs locally in your browser, so your data is never uploaded.

How to use it

Upload a CSV file or paste it into the box on the left.
Tick the columns you want to keep and untick the ones to drop.
Use the up/down buttons to reorder the columns as needed.
Copy the result or download the trimmed CSV.

Common use cases

Removing unnecessary columns from a CRM or analytics export before import.
Reordering columns to match the format another tool expects.
Sharing only specific columns while keeping sensitive fields out.

Related CSV tools

FAQ

Operated by

Tools by Timothe AI is a suite of free tools built and operated by unbounded pioneering inc, the company behind Timothe AI.

Ryosuke SuzukiFounder & CEO

Founder & CEO of Unbounded Pioneering Inc., the company behind Timothe AI, and an expert in machine learning and AI product development. He began his career in machine learning research at a university laboratory, then designed and built large-scale products as a software engineer at PLAID, Rakuten, and Recruit, while also driving new business development. Now specializing in generative AI and AI products, he works across both engineering and business development, and is a named inventor on multiple granted patents in web technology.

Named inventor on granted patents JP6887648 & JP7480958 · Patent pending on Timothe AI technology

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