CSV Formatter & Validator

Format, validate, and transform CSV data with advanced options. Upload files or paste data directly.

Settings

Ctrl+Enter format Alerts top-right
Core CSV
Analysis & automation

Infer column types after format (shown below stats when available).

Off by default for large files โ€” turn on for live server updates.

1 = first column. Leave empty to skip sorting.

Input

Output

Statistics
Rows
0
Columns
0
Detected Delimiter
-
Input Size
0 B
Output Size
0 B
Processing Time
0ms

Validation & Diagnostics

No diagnostics yet

Click any issue below to move the caret in the input.

Format your CSV to see diagnostics

About CSV Formatter & Validator

The CSV Formatter helps you organize and validate CSV data. It supports multiple delimiters, column alignment, file uploads, and ensures consistent data formatting for better readability and compatibility.

Key Features

  • Multiple delimiter support (auto-detect available)
  • Column alignment and validation
  • Header row detection and handling
  • Whitespace trimming and field quoting
  • CSV file upload capability
  • Convert to JSON or HTML Table
  • Real-time validation with diagnostics
  • Excel and compatibility checking

Tips & Best Practices

  • Select the correct delimiter matching your CSV format
  • Enable "Has Header Row" if your first row contains column names
  • Use "Align Columns" for better readability
  • Enable "Trim Whitespace" to clean up formatting
  • Click on diagnostics to navigate to issues in your input
  • Download formatted output for use in other applications