---
title: "SDK Debugger: Decode Tracking Payloads | Product Metrics"
description: "Free Product Metrics SDK debugger: paste a tracking request body to decode the compressed base64url event and check it the way the collector does."
canonical: "https://www.productmetrics.io/sdk-debugger"
pageType: feature
language: en
publisher: "Product Metrics"
dateModified: 2026-09-30
image: "https://www.productmetrics.io/og/sdk-debugger.png"
---

> Content index: https://www.productmetrics.io/llms.txt

# Product Metrics SDK debugger

Paste a tracking SDK request body to see the event it carries and whether the collector would accept it.

_Decoding runs in your browser. Nothing you paste is sent anywhere._

## Where to find the payload in DevTools.

1. **Open Network.** Open DevTools on the storefront and go to the Network tab.
2. **Filter requests.** Show Fetch/XHR and Other. The SDK posts events as text/plain with fetch or sendBeacon.
3. **Find the event.** The collector path is opaque and rotates. Look for a POST whose body starts with 2.
4. **Copy the body.** Open Payload, choose view source and copy the whole string.

- [How Full Signal Tracking works](https://www.productmetrics.io/server-side-tracking)

---

Published by Product Metrics (Berend Vrakking, founder).

HTML version: https://www.productmetrics.io/sdk-debugger