amanar.ai · tools

Every row, exactly once

Find and remove duplicate rows in CSV or Excel files — match on any columns, exact or fuzzy, with a full preview before anything is removed.

🔒 100% in your browser. Your data is never uploaded.

1 · Load your data

Drop CSV / Excel
or click to browse

Deduplication, explained

How do I remove duplicate rows from a CSV?

Load the file, choose which columns define a duplicate (all of them, or keys like email/ID), pick exact or normalized matching, review the groups, and download the deduplicated file. Nothing is removed without you seeing it first.

What does normalized matching do?

It lowercases values, trims and collapses whitespace, and strips punctuation before comparing — so "Acme Co." and "acme co" match. This catches the near-duplicates that exact comparison misses.

Is my file uploaded?

No. Everything runs locally in your browser; the page cannot make network requests at all.

This is what we give away for free.

Imagine what we'd build for your team — data pipelines, dashboards, and infrastructure engineered to the same standard, on your data.

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