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n8n Workflow JSON Checker
Check exported workflow JSON for structural issues, duplicate nodes and broken connection references.
Your input stays in this browser. No API calls or server uploads.
How to use the n8n workflow json checker
Paste or upload one exported workflow object. Check nodes, connection shapes and references, then copy or download the findings. No workflow is executed.
Supported features and limitations
A static structural check, not an n8n execution or import guarantee. Does not validate node-specific parameters, expressions, installed node types or credentials. Supports 200,000 input characters, 1,000 nodes and 10,000 connections; displays up to 200 findings.
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