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No. These utilities run in your web browser. Your text is processed locally in this tab unless a tool explicitly states otherwise (for example, fetching your public IP uses a minimal server request).

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Pastebin — share plain text with a browser link | 开发者实用工具

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Pastebin

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Autosaves to this browser. Share links may hit browser length limits for very large pastes.

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Plain-text scratch pad with optional share link (base64 in the URL), clipboard copy, and .txt download — no server upload.

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