Compare CSV and Excel files: see what changed with Replay
Perfect for price lists, inventories, CRM exports and ERP data. Upload two versions of the same CSV or Excel file and Replay instantly shows you what changed: added, removed and modified rows, field by field.
Main Features
Everything you need to monitor changes in your structured data
Version History
Upload new versions of your data files and browse the complete history. Every version is stored and comparable with the previous one.
Difference Analysis
Replay automatically compares each new version with the previous one, highlighting added, removed and modified rows field by field.
CSV and Excel
Supports CSV files (with automatic delimiter detection) and Excel files (.xlsx). Upload your data with no manual conversion needed.
Organize your Data
Create separate projects for each dataset you want to monitor: price lists, inventories, contact databases, management system exports.
PDF Reports
Generate PDF reports summarizing the differences between versions. Useful for documenting changes and sharing them with colleagues or clients.
Security and Privacy
Your data is protected and never shared with third parties. Files processed securely on European servers.
How It Works
Three simple steps to compare your files
Upload the original file
Upload a CSV or Excel (.xlsx) file as the baseline version of your project.
Upload the new version
Upload the updated file. Replay will automatically compare it with the previous version.
View the differences
Instantly see added, removed and modified rows field by field. Export a PDF report.
Frequently Asked Questions
What file formats does Replay support?
Replay supports CSV files (with automatic delimiter detection: comma, semicolon, tab) and Excel files (.xlsx). Maximum file size is 10 MB.
How does version comparison work?
Replay uses a key column (like an ID) to match rows between versions. It compares every field and identifies added, removed and modified rows.
Is my data safe?
Yes. Files are processed on European servers (Microsoft Azure, EU) and are never shared with third parties. The connection is secured via HTTPS.
Is Replay free?
Yes, the Free plan lets you create one project with limited versions. For more projects and unlimited versions, paid plans are available.
Can I export the differences?
Yes, you can generate a PDF report with a complete summary of the differences between two versions, ready to share with colleagues or clients.
Try Replay for free
Start with the free demo — no sign-up required. Or create an account to save projects and track versions over time.