Is DiffSheets free to use?

Yes, DiffSheets is completely free to use. There are no hidden fees, subscriptions, or premium features locked behind a paywall.

Is my data safe when using DiffSheets?

Absolutely. DiffSheets processes all files 100% client-side in your browser. Your spreadsheet data never leaves your computer or gets uploaded to any server.

What file formats does DiffSheets support?

DiffSheets supports Excel files (.xlsx, .xls), CSV files, and OpenDocument Spreadsheets (.ods). You can compare files of the same or different formats.

Can I compare large Excel files?

Yes, DiffSheets uses virtual scrolling technology to efficiently handle large spreadsheets with thousands of rows without performance issues.

How does DiffSheets compare spreadsheets?

DiffSheets offers multiple comparison modes: position-based matching (row by row), key column matching (by a unique identifier), and intelligent LCS algorithm for best alignment detection.

CSV & TSV Supported

Compare CSV Files Online

The fastest way to find differences between CSV files. Free, secure, and runs entirely in your browser.

Compare Your CSV Files Now

Benefits

Why Use DiffSheets for CSV Comparison?

Instant Results

Compare CSV files in milliseconds. No waiting for server processing.

Handle Large Files

Virtual scrolling lets you compare CSV files with hundreds of thousands of rows.

Smart Parsing

Automatically detects delimiters. Works with comma, semicolon, tab-separated files.

Compare Across Formats

Compare CSV to Excel, or CSV to CSV. Mix and match file types.

Use Cases

Perfect For

Database Exports

Compare database dumps, verify backup integrity, track schema changes.

API Responses

Diff API response data, compare test results, validate integrations.

Log Analysis

Compare log files, find configuration differences, track changes over time.

ETL Pipelines

Validate data transformations, verify ETL output, ensure data quality.

Ready to compare?

The fastest way to find differences between CSV files. Free, secure, and runs entirely in your browser.

Try it now