Free Data Tools
Free, private, browser-based tools from Flookup. Every tool processes your data locally on your device. Nothing is uploaded, so your files stay yours.
Free CSV Editor
Inspect, clean, deduplicate, filter, sort and transform CSV files with a CSV health report. Handles huge files in streaming mode, all in your browser.
Open CSV WranglerFuzzy Matching Tool
Paste two lists of names, emails or text and get a similarity score for every match. Perfect for spotting near-duplicates.
Open Fuzzy Matching ToolCSV Diff
Compare two CSV files by a key column and see exactly what changed: added, removed and changed rows. Includes a match rate and a downloadable diff.
Open CSV DiffLast updated: August 2026