CSV Viewer & Editor - CSVLab

CSV Viewer & Editor is a powerful CSV viewer and CSV editor that lets you open CSV files, edit spreadsheet data, and visualize datasets with charts directly on your phone.
Quickly read CSV files, edit CSV tables, filter rows, and convert CSV to Excel or JSON with a fast and responsive interface.
The app is optimized to open large CSV files with thousands of rows while remaining smooth and stable.
No accounts. No uploads. Everything works fully offline.
📂 CSV Viewer – Open CSV Files Instantly
Use this app as a fast CSV reader and CSV file viewer.
• Open CSV files instantly
• Supports CSV, TSV, and PSV formats
• Automatic delimiter detection
• Smooth scrolling spreadsheet grid
• Handles large datasets without freezing
Perfect for viewing exported CSV spreadsheets, logs, or datasets.
✏️ CSV Editor – Edit Spreadsheet Data
Edit CSV data directly on your phone with a powerful CSV editor.
• Edit any cell instantly
• Add or delete rows and columns
• Resize columns with auto-fit
• Undo / Redo support
Quickly modify CSV files, update spreadsheet data, or clean datasets.
🔎 Sort & Filter CSV Data
Analyze and organize your CSV datasets.
• Sort columns (A–Z / Z–A)
• Filter rows by values
• Freeze the first column
• Remove duplicate values
Great for cleaning CSV data and exploring datasets.
📊 Create Charts from CSV Data
Turn spreadsheet data into visual charts.
• Create Bar, Line, and Pie charts
• Automatic numeric column detection
• Smart downsampling for large datasets
• Export charts as images
Quickly visualize CSV data and understand patterns.
📤 Convert & Export CSV Files
Easily convert and share your data.
• Convert CSV to Excel (.xlsx)
• Convert CSV to JSON
• Covert CSV to PDF directly
• Share files directly
Perfect for working with CSV spreadsheets across different formats.
⚡ Optimized for Large CSV Files
Built for performance when working with large datasets.
• Handles large CSV files efficiently
• Background processing for heavy tasks
• Stable limits to prevent crashes
🌗 Light & Dark Mode
• Clean light theme for spreadsheets
• Comfortable dark mode for long sessions
🔒 Privacy-First CSV Viewer
• Files stay on your device
• No login required
• No data collection
Your CSV files remain private and secure.
Ideal For
Developers – open logs and exported data
Data analysts – filter and visualize CSV datasets
Students & researchers – analyze survey data
Anyone who needs a reliable CSV viewer and editor

Recent changes:
1. The list now stays in place when you add or delete rows.
2. Empty rows at the end of a file are kept when you reopen it, and column widths are remembered.
3. You can save a .txt file as .csv.