Online CSV Editor, Email Validator & Duplicate Remover
Upload a CSV file, edit it in a live spreadsheet, validate email addresses, remove duplicates, and export clean data — no Excel or software needed.
Best For
Use CSV Editor when you need to inspect, convert, compare, or package technical material quickly. The page is designed around a focused workflow: bring in the code, data, markup, URL, or technical file, make the adjustment or check, then copy or download the result for your repo, ticket, documentation, or handoff.
Most work happens locally in your browser, which keeps files and text on your device and makes quick repeat checks practical. Review the output, then copy or download the result for your repo, ticket, documentation, or handoff.
Common workflows
- Clean Up Mailing Lists
- Fix CRM Export Data
- Edit Shopify Product Exports
- Clean Real Estate Lead Lists
Features
Email Validation
Automatically scan any column for invalid email addresses and flag rows for review or deletion.
Duplicate Removal
Detect and remove duplicate rows with a single click, keeping your mailing lists and databases clean.
Clean Export
Download the edited file as a properly formatted CSV, ready to import into any tool.
How It Works
Drag and drop a .csv file or paste CSV text directly into the editor.
Click any cell to edit it. Add or remove rows and columns as needed.
Use the built-in tools to validate emails and remove duplicate rows.
Download the cleaned CSV file, ready to use.
Frequently Asked Questions
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