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CSV Diff Tool

An online tool to quickly find differences between two CSV files. No installation, no plugins.

The problem

Command-line CSV diff tools are powerful but not intuitive. They require technical skills and don't produce easily shareable output.

The solution

Replay offers an intuitive web interface to diff your CSV files. Upload the files, select the key column and get differences in a clear, shareable format.

Key Features

Intuitive web interface, no software to install
Supports files up to 100,000 rows and 100 columns
Key column-based diff for precise comparison
Shareable PDF report with difference summary

How it works

Upload the original file as baseline

Upload the new version

View the differences and download the PDF report

Try it for free

Start with the free demo — no sign-up required. Or create an account to save versions and track changes over time.