Notion CSV merge duplicates? Check the rows before you import.

Notion CSV merges add rows rather than updating existing records. Before you merge, compare your current export and incoming CSV by one exact key such as Email, ID, or SKU.

Open Notion Merge Guard

What the free check does

• flags blank selected keys;
• flags incoming keys already in your existing export;
• flags repeats inside the incoming CSV.

Files remain in your browser. The tool does not connect to Notion, resolve conflicts, change your data, or replace a backup and mapping review.

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