Process multiple files with forms: a tutorial on binary data and loops
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
Nodes used (5)
- Loop Over Items (Split in Batches)
n8n-nodes-base.splitInBatches - Read/Write Files from Disk
n8n-nodes-base.readWriteFile - Split Out
n8n-nodes-base.splitOut - n8n Form Trigger
n8n-nodes-base.formTrigger - No Operation, do nothing
n8n-nodes-base.noOp
What it does
Let a user load multiple files with a Form node, and process the binary data. A very important workflow for many tools. This is a learning example of several core concepts that are hard to grasp in n8n: - $binary data - Loop and $runIndex - Split Out The Save File deomonstrates how to access the binary data correctly, but could be swapped to POST the files to an AI, for example.