Trim CSV Columns

Quickly trim leading and trailing spaces from every column in your CSV file. Clean headers or data rows instantly just paste, preview, and export.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total characters: 0
Options
Trim Header Row
Trim Data Rows

How to Use:

  • Paste your CSV content into the Input CSV box or upload a file using the Choose File button.
  • Supported formats include .csv, .txt, .tsv, and other plain-text file types.
  • The tool reads your data and immediately shows a live preview in the Trimmed Output box.
  • Use the Trim Header Row toggle to clean up column names by removing any extra spaces.
  • Use the Trim Data Rows toggle to remove spaces from values in the rest of the rows.
  • You can enable both toggles for a full cleanup or trim only one part of your data.
  • The output flashes briefly whenever it updates so you know it refreshed.
  • Check the Total characters counter below the output box to see result size in real time.
  • Click Copy Output to copy the cleaned CSV to your clipboard.
  • Use Export to File to download the cleaned CSV to your device.
  • Click Clear All to reset everything input, output, file label, and toggle settings.

What Trim CSV Columns can do:

Trim CSV Columns removes those annoying invisible spaces that break headers and cause import errors. Whether your file came from Excel, a poorly formatted export, or a database dump, this tool strips out extra whitespace from headers, data rows, or both. It updates in real time, handles any CSV structure, and lets you clean, copy, or download your result instantly. All done inside your browser.

Example:

Input:

Name , Age , Location  
 Alice , 30 , USA 
 Bob , 25 , UK

Trimmed Output:

Name,Age,Location
Alice,30,USA
Bob,25,UK

Common Use Cases:

Use this when column names won’t match up because of stray spaces or when imported data gets flagged by other tools. It’s great for prepping datasets for upload, fixing exported reports, or just cleaning up rows before analysis. Everything updates live just paste and trim.

Useful Tools & Suggestions:

If you’re cleaning up, run Remove Extra CSV Commas first to fix any messy formatting that throws things off. And after trimming, Count CSV Columns helps verify everything’s still aligned.

Related Tools