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Remove Duplicate Rows Online
Strip duplicate rows from CSV or JSON. Use Remove Duplicate Rows in your browser with no signup, no daily limit, and no backend processing for tool input.
Problem
You need to remove common data-quality problems before the file is imported, analyzed, converted, or shared.
What to do
Cleaning should be deliberate and reviewable. Start with safe fixes, inspect the result, and keep a copy of the original source data.
- 1Load the dataset into Remove Duplicate Rows.
- 2Choose the cleanup rules that match the problem.
- 3Preview the changes and export the cleaned data.
Use the browser tool
Remove Duplicate Rows is a free, browser-based tool that helps you tidy up and standardize messy datasets. Strip duplicate rows from CSV or JSON. It's built for speed and privacy: Everything runs locally in your browser — your data is never uploaded to a server. No sign-up, no installs, and no daily limits.
People also ask
- How do I use Remove Duplicate Rows?
- Paste or drop your data into the workspace, adjust the options to fit your data, then copy or download the result. Strip duplicate rows from CSV or JSON.
- Is my data uploaded or stored anywhere?
- No. Everything runs locally in your browser — your data is never uploaded to a server. Nothing is sent to a server, so it's safe to use with private or sensitive data.
- Is Remove Duplicate Rows free?
- Yes — it's completely free with no account, no sign-up, no watermark, and no daily usage limits.