Multiple File Upload in n8n (Keep Binary Data Across Nodes/Workflow)
📎 Upload Multiple Files in n8n Forms (And Reference Them Anywhere in Your Workflow!)
One of the most frustrating things in n8n…
You upload files through a Form Submission node — and then later in the workflow, you can’t easily reference that binary data anymore.
In this video, I show you exactly how to fix that.
You’ll learn how to:
• Upload multiple files through the n8n Form node
• Preserve the binary data properly
• Use the Merge node + small code adjustments
• Reference those uploaded files anywhere later in your workflow
• Store them in Google Drive (or use them in other nodes)
This makes your workflows way more flexible and production-ready.
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🧠 What You’ll Learn:
• How n8n handles binary file data
• Why file references break later in workflows
• How to safely pass multiple files forward
• Using Merge node to consolidate items
• Small Code node trick to retain references
• Sending uploaded files to Google Drive
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🔧 Tools Used:
• n8n Form Submission node
• Merge node
• Code node
• Google Drive
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🎯 Why This Matters:
✅ Handle multiple file uploads properly
✅ Avoid losing binary references
✅ Build real-world client forms
✅ Perfect for document processing, contracts, uploads, and automation pipelines
If you’ve ever struggled with file uploads in n8n — this fixes it.
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