7 free tools, all running entirely in your browser.
Convert between CSV and JSON, either direction.
Load one or more CSV files and query them with real SQL — joins, filters, and aggregates — entirely in your browser.
Query a JSON file or paste using JSONPath — filters, wildcards, and recursive search — entirely in your browser.
Compare two CSV exports row by row and column by column — see exactly what was added, removed, or changed.
Generate a configurable CSV of realistic fake data — names, emails, dates, numbers — for testing or trying out other tools.
Compare two JSON objects and see exactly which fields were added, removed, or changed — free, in your browser.
Upload a CSV and get automatic column types, missing-value counts, and statistics — free, runs in your browser.
Browse all 152 tools, or use the search box on the homepage to find a specific one.