I made a small local JSON payload mapper for debugging blank Zapier outputs
I kept seeing the same failure pattern in Zapier automations.
The Zap runs, but the email, CRM row, or sheet output is blank because the received payload does not match the fields that were mapped.
I made a small browser based mapper for redacted JSON payloads.
It flattens nested fields into paths, flags empty values, flags arrays that often break mapping, marks sensitive fields to redact, and exports a CSV field map.
It runs locally in the browser. No signup. No payload storage. Do not paste secrets. Use a redacted sample payload.
Free tool: https://www.business-mind.xyz/tools/webhook-payload-mapper
I am looking for weird payload examples this misses. The cases I want to improve are Zapier webhooks, Code by Zapier, CRM creates, form submissions, and AI call payloads.
What is the most annoying payload mapping failure you keep seeing in Zapier?