CSV Tools
Convert, validate, and merge CSV files. All processing happens in your browser.
Available Tools
Select a tool to get started
CSV ⇄ JSON Converter
Convert between CSV and JSON with customizable delimiters
CSV Validator
Validate CSV format, headers, and row consistency
CSV Merge
Combine multiple CSV files into one
100% Secure
All processing happens in your browser. Your data never leaves your device.
Lightning Fast
No upload wait times. Process CSVs instantly.
Completely Free
No limits, no sign-up required.