Compress a CSV File

Compress a CSV File by removing unnecessary spaces and optionally stripping the header. Optimize CSV size instantly with live preview, trimming options, and one-click export all offline.

Paste your input above or import a file below.
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Supported file types: .csv, .txt, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total characters: 0
Options
Trim spaces in cells
Remove header row

How to Use:

  • Paste CSV content into the “Original CSV” box or click “Choose File” to upload a compatible text-based file
  • Supported file types: .csv, .txt, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
  • Use the toggle Trim spaces in cells to remove leading and trailing spaces from each field
  • Use the toggle Remove header row if you want to drop the first line (typically column titles)
  • The compressed result appears instantly in the “Compressed Output” box and flashes on update
  • Below the output, you’ll see a live character count to help track how much space was reduced
  • Click “Compress” to reprocess the input manually if needed
  • Click “Copy Output” to copy the compressed CSV to your clipboard
  • Click “Export to File” to download the result as a .csv file
  • Click “Clear All” to reset both textareas, toggles, and any file selection

What Compress a CSV File can do:

Compress a CSV File helps you clean and shrink your dataset by eliminating padding, messy spacing, or unneeded headers. This is especially useful before importing data into APIs, loading CSVs into web apps, or reducing payload size for file storage. It works entirely in the browser with no upload required, and gives instant feedback.

Example:

Before:

 name , age , email 
 Alice , 30 , [email protected] 
 Bob , 25 , [email protected]

After (with trim + header removal):

Alice,30,[email protected]
Bob,25,[email protected]

Common Use Cases:

Whether you’re preparing a dataset for an upload, optimizing files for storage, or just cleaning up CSV files generated by inconsistent systems, Compress a CSV File gets the job done quickly. It’s perfect for trimming bloat before import, export, or processing via code.

Useful Tools & Suggestions:

Try Optimize CSV File Size first if you’re looking to shrink it before compressing. And once it’s compressed, Convert CSV to Base64 can wrap it up for easy transfer or embedding.

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