Engineered for performance
Everything you need to analyze large datasets without slowing down your browser.
Instant Parsing
Proprietary engine parses 10MB+ CSV files in under 2 seconds.
100% Private
Data never leaves your device. Local browser processing only.
Excel Compatible
Native .xlsx support. No conversion needed.
Smart Filtering
SQL-like filtering power accessible to everyone.
Simplicity by design
Three steps to actionable insights.
01
Upload
Drag your .csv or .xlsx file.
02
Analyze
Filter, sort, and edit instantly.
03
Export
Download as clean Excel or CSV.
Who uses Modern CSV Viewer?
From data scientists to marketing managers, professionals trust us to handle their sensitive data without the cloud overhead.
Data Analysts
Quickly inspect large datasets before importing to DBs.
Marketers
Clean email lists and campaign data in seconds.
Developers
Check JSON exports converted to CSV instantly.
10k+Daily Users
Frequently Asked Questions
Common questions about security and features.