CSV & Data Tools
Process, validate, and transform CSV datasets with free tools that never upload your data or add watermarks.
Every tool is free, watermark-free, and runs entirely in your browser—nothing uploads to our servers. If anything needs extra permissions, we call it out right away.
CSV Validator
Check CSV structure, delimiters, and header consistency with instant validation feedback.
CSV Column Picker
Select and export specific columns from large CSV files in seconds.
CSV Deduplicator
Remove duplicate rows using any column as a unique key.
CSV Merge & Join
Join two CSV datasets on matching columns with a left-join workflow.
CSV to HTML Table
Convert CSV data into responsive HTML table markup for websites and dashboards.
CSV to Markdown Table
Create GitHub-ready markdown tables from CSV files instantly.
CSV Pivot Table Builder
Summarise CSV data with drag-free pivot table generation and export.
CSV to NDJSON
Transform CSV rows into newline-delimited JSON for streaming pipelines.
CSV Sorter
Sort massive CSV files by one or multiple columns without uploading data.
CSV Statistics Explorer
Calculate column averages, mins, maxes, and percentiles entirely in your browser.