Data Tools

RowSweep

Drop a CSV file, toggle the cleaning operations you need, and export a polished result. Remove duplicates, trim whitespace, fix casing — all without uploading a single byte.

Open RowSweep

What you get

Features

Remove duplicates and empty rows
Trim whitespace and fix casing
Find-and-replace across columns
100% browser-based — no uploads

Privacy first

Built for your browser

RowSweep is designed to be fast, simple, and distraction-free. Open it in any modern browser and get started in seconds — no downloads, no installations, no account required.

Most of our file tools process everything locally in your browser. Productivity tools store data locally by default with optional cloud sync when you sign in.

Get started

How it works

01Open RowSweep in your browser
02Select or drag & drop your file
03The tool processes it locally using browser APIs
04Download your result — done!

Learn more

Reports

2026 Developer and Data Tool Report: Free JSON, CSV, Code, and Chart Tools Evaluated

Evaluation of 4 free browser-based developer utilities: JSON formatting, code diffing, CSV cleaning, and chart generation. Includes feature verification, comparison tables, and use-case recommendations.

2026-02-247 min read

Comparisons

Best Free CSV Cleaners in 2026: OpenRefine vs Online Tools for Messy Data

We compared the top free tools for cleaning messy CSV files — from desktop powerhouses to browser-based cleaners. Here's what works in 2026.

2026-02-105 min read

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