Overview
Track postMessage traffic in Chrome DevTools across frames.
PostMessage Tracker is a developer tool that helps you inspect and debug PostMessages communication between host and iframes. It provides real-time visibility into all incoming and outgoing postMessage events directly in DevTools, making it easier to understand cross-origin communication and troubleshoot integration issues. ๐๐จ๐ฐ ๐ญ๐จ ๐ฎ๐ฌ๐ Install extension Open DevTools (F12) Open the PostMessage Tracker tab Reload page Start inspecting messages โจ ๐ ๐๐๐ญ๐ฎ๐ซ๐๐ฌ ๐ก Track messages โ View all sent and received postMessage events in real time ๐ Powerful filtering โ Filter messages by origin, type, or payload content ๐งฑ Block messages โ Suppress handling of selected messages based on origin or data ๐ Timestamps & metadata โ See when messages were sent and where they came from ๐ Readable payloads โ Pretty-printed JSON for easy debugging โธ Pause & resume โ Control message flow while inspecting ๐งน Clear logs โ Reset the message list instantly ๐จโ๐ป Author Created by Areg Sargsyan ๐ https://www.linkedin.com/in/areg-sargsyan postmessage debugger iframe debugger devtools extension cross origin iframe microfrontend debugging message inspector window.postMessage iframe communication embedded app debugging frontend debugging tool iframe inspector cross-frame messaging sdk integration debugging
Details
- Version0.1.2
- UpdatedMay 19, 2026
- Offered byaregsargsyan8888
- Size25.26KiB
- LanguagesEnglish
- Developer
Email
aregsargsyan8888@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes