Select two files (CSV, Excel, JSON, etc.), match key columns by selecting corresponding headers, and compare their content. Your data never leaves your device, as all the comparison operations are handled locally.
Click on the text below to create column breaks. Drag breaks to move them.Note, if intending to apply a template, click Apply Columns button to continue.
Finding matches...
Drag values from one list and drop them onto a value in the other list to create a manual mapping. Mapped items are highlighted.
Reading workbook...
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Effective Date: October 19, 2025
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Select which settings to include in the template file.
Cannot save mappings. Number of unique keys exceeds the limit of 1,000.
If you have any questions, feedback, or need support, please feel free to reach out.
For general inquiries and support, please email us at: [email protected]
We welcome your feedback! If you have suggestions for new features or improvements, please let us know.
Files Match is a powerful, client-side tool designed to help you compare the contents of two files efficiently. Whether you're reconciling financial reports, verifying data integrity, or just need to spot differences between two datasets, this tool provides an intuitive interface to get the job done quickly without your data ever leaving your computer.
We are continuously working to improve Files Match. Our future plans include performance enhancements for very large files, support for additional file formats, and more advanced comparison features to provide even deeper insights into your data.
This file has an inconsistent structure. Please define the headers below.
Click the radio button next to the row you want to use for column headers.
Alternatively, provide a custom name for each column below.
Provide a custom name for each column below.