csvmend — Fix messy CSVs in one command

Clean, normalize, and repair your CSVs in seconds — no bloated Excel macros or complex Python scripts required.

csvmend is a command-line utility built by 3EF Studio that automatically fixes the most common data issues with a single command.

🧹 Features

• Removes blank rows and duplicate headers
• Replaces nulls and missing values (NA, N/A, None, etc.)
• Normalizes date formats (ISO-8601)
• Cleans up stray spaces and CSV injection attempts (=SUM(...), etc.)
• Detects and drops fully empty columns
• Supports Boolean and percentage normalization
• Generates a .report.json summary and .errors.csv for full transparency

⚙️ Built for Developers

• No dependencies on Excel or pandas
• Works cross-platform (macOS, Linux, Windows)
• Configurable via YAML (csvmend.yml)
• Install and run entirely offline after activation

🧰 Includes

• Pre-packaged .zip distribution
• Quick setup scripts (install.sh, install.bat)
• README with activation instructions
• 30-day offline license cache