CSV & DATA TOOLS
Free CSV Column Filter online
Keep only selected columns.
Use CSV Column Filter to keep only selected columns in seconds, straight from your browser. Add your text, adjust the CSV Column Filter options if you need to, then download the result immediately. CSV Column Filter processes everything in your own browser, so your data never leaves your device.
- Free to use
- No signup
- No uploads
- Works offline
Why use CSV Column Filter
- keep only selected columns without installing software
- Your text is processed on your device by CSV Column Filter, never uploaded
- CSV Column Filter needs no account, email address or payment details
- CSV Column Filter is batch-friendly: reuse it immediately on the next file
- CSV Column Filter is keyboard accessible and screen-reader friendly
- CSV Column Filter is free forever, with no watermark on the result
CSV Column Filter runs entirely inside your browser. Your text is never uploaded, stored or shared, and nothing is retained once you close the tab.
How to use CSV Column Filter
- Add your text Drag your text onto the drop zone or pick it from your device.
- Adjust the options Set the options that control how CSV Column Filter handles your input.
- Apply the change CSV Column Filter works instantly on your device, with no queue and no upload wait.
- Download the result Save the finished file straight to your device, then reuse the tool as often as you like.
Benefits
Private by design
Your text stays on your device while CSV Column Filter works. CSV Column Filter never sends it to a server, so confidential work stays confidential.
Instant results
There is no upload step, so CSV Column Filter starts the moment you add your text.
No signup, no limits
Use CSV Column Filter as many times as you want. CSV Column Filter asks for no account, adds no watermark and keeps no paid tier gating the output.
Works offline
Once the page has loaded, CSV Column Filter keeps working without a connection, which helps on flights and locked-down networks.
Who it is for
For developers
Developers use CSV Column Filter to debug and ship faster without installing software: keep only selected columns on a shared or locked-down machine.
For freelancers
CSV Column Filter helps freelancers send client deliverables quickly, since your text never leaves the laptop it was created on.
For support teams
CSV Column Filter helps support teams answer customer requests quickly, since your text never leaves the laptop it was created on.
How it works
CSV Column Filter loads your text into memory, applies the change you requested to the underlying data rather than to a screenshot of it, and writes a fresh copy for download. Your original stays untouched on disk, and every step of CSV Column Filter happens inside your browser sandbox.
Frequently asked questions
Is CSV Column Filter free to use?
Yes. CSV Column Filter is completely free with no account, no trial and no usage cap. Every feature on this page is available on the first visit.
Does CSV Column Filter upload your text to a server?
No. CSV Column Filter processes your text inside your browser, so it never reaches a DocTools server. That also means the tool keeps working if your connection drops mid-task.
Is there a file size limit?
The practical ceiling is your device's available memory rather than a server quota. Files up to roughly 100 MB work comfortably on a typical laptop in CSV Column Filter.
Do I need to install anything to use CSV Column Filter?
No installation is needed. CSV Column Filter runs in Chrome, Edge, Firefox and Safari, on desktop and on mobile, with no extension or plugin.
Can I use CSV Column Filter on a phone or tablet?
Yes. The CSV Column Filter interface adapts to small screens and supports touch input, though very large jobs are faster on a desktop browser.
What happens to your text when I close the tab?
It is discarded. CSV Column Filter keeps everything in temporary browser memory, so closing the tab removes every trace of the session.
Related tools
- CSV Column Sorter | Sort CSV by column
- CSV Duplicate Remover | Remove duplicate rows from CSV
- CSV Row Counter | Count rows and columns in CSV
Last updated: 2026-09-07