Free CSV & Data Tools
9 browser-based utilities for converting, cleaning, and wrangling data. Your files never leave your device. No signup. No limits.
Duplicate Row Remover
Find and remove duplicate rows from any CSV — instantly.
CSV to JSON Converter
Convert CSV files to JSON arrays — no coding needed.
JSON to CSV Converter
Flatten JSON into a clean CSV spreadsheet in one click.
CSV Column Picker
Select, drop, reorder, and rename CSV columns — then download.
CSV to Markdown Table
Turn any CSV into a GitHub-ready Markdown table.
CSV to SQL Generator
Generate SQL INSERT statements from a CSV — MySQL, PostgreSQL, SQLite.
CSV Merger
Stack or join multiple CSV files into one download.
Test Data Generator
Generate realistic fake CSV data for testing — up to 100k rows.
Excel Formula Explainer
Paste any Excel formula — get a plain-English explanation.
100% private — your data stays in your browser
Every tool processes your files locally using Web APIs. Nothing is uploaded to any server. Close the tab and the data is gone. We built these tools to the same privacy standard as Sohovi — our data quality platform.