What is this tool for?

This tool allows you to compress CSV files to reduce their size, making them easier to store and share.

Yes, this tool is completely free to use with no registration required.

How does the compression work?

We use the GZIP compression algorithm, which is a lossless compression method. Your data remains intact.

Absolutely! All processing happens in your browser. Your files are never uploaded to any server.

Compress CSV Files

Reduce your CSV file sizes significantly with our free browser-based compression tool. No uploads, no registration, and your data stays private.

Upload CSV File

Drag & drop your CSV file here

Browse Files

Supports all CSV files. Max file size: 500MB

Compression Results

No CSV Compressed Yet

Upload a CSV file and click "Compress CSV" to see results

Why Use Our CSV Compressor?

Our tool offers the best combination of features for working with CSV files, all while keeping your data secure and private.

Complete Privacy

Files never leave your browser. No server uploads means your data remains 100% private.

Lightning Fast

Optimized compression algorithms process your files in seconds, even large datasets.

Premium Quality

Lossless compression ensures your data integrity is maintained without any quality loss.

Frequently Asked Questions

Find answers to common questions about our CSV compression tool.

What is CSV compression?

CSV compression reduces the file size of your comma-separated values files using algorithms like GZIP. This makes files easier to store, share, and transfer while preserving all your data.

How much compression can I expect?

Compression rates vary based on your data, but most CSV files can be reduced by 50-90%. Files with repetitive data compress more efficiently.

Is there a file size limit?

Our tool can handle files up to 500MB. For larger files, we recommend splitting them into smaller chunks for optimal performance.

What browsers are supported?

Our tool works on all modern browsers including Chrome, Firefox, Safari, and Edge. For best performance, use the latest browser versions.