PostMessage Tracker
Track postMessage traffic in Chrome DevTools across frames.
As of June 2026, PostMessage Tracker has 46 users and a 5.00/5 rating from 2 reviews in the Developer Tools category.
Usersno change0%
46
46
Ratingno change0%
5.00
2 reviews
Reviewsno change0%
2
Version
0.1.2
Manifest V3
90-day change · In the last 90 days this extension 1 version update.
History
8 snapshotsTracking since Apr 27, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 27, 2026 | — | — | — | 0.1.0 |
| May 4, 2026 | — | — | — | 0.1.0 |
| May 10, 2026 | — | — | — | 0.1.2 |
| May 15, 2026 | 16 | 5.00 | 2 | 0.1.2 |
| May 21, 2026 | 17 | 5.00 | 2 | 0.1.2 |
| May 27, 2026 | 25 | 5.00 | 2 | 0.1.2 |
| Jun 3, 2026 | 32 | 5.00 | 2 | 0.1.2 |
| Jun 9, 2026 | 40 | 5.00 | 2 | 0.1.2 |
| Now | 46 | 5.00 | 2 | 0.1.2 |
Changelog
- May 21, 2026description
PostMessage Tracker is a developer tool that helps you inspect and debug PostMessage scommunication 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. ✨ Features 📡 Track messages – View all sent and received postMessage events in real time 🔍 Powerful filtering – Filter messages by origin, type, or payload content 🧱 Block messages – Suppress handling of selected messages based on origin or data 🕒 Timestamps & metadata – See when messages were sent and where they came from 📋 Readable payloads – Pretty-printed JSON for easy debugging ⏸ Pause & resume – Control message flow while inspecting 🧹 Clear logs – Reset the message list instantly 👨💻 Author Created by Areg Sargsyan 🔗 https://www.linkedin.com/in/areg-sargsyan
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. 𝐇𝐨𝐰 𝐭𝐨 𝐮𝐬𝐞 Install extension Open DevTools (F12) Open the PostMessage Tracker tab Reload page Start inspecting messages ✨ 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬 📡 Track messages – View all sent and received postMessage events in real time 🔍 Powerful filtering – Filter messages by origin, type, or payload content 🧱 Block messages – Suppress handling of selected messages based on origin or data 🕒 Timestamps & metadata – See when messages were sent and where they came from 📋 Readable payloads – Pretty-printed JSON for easy debugging ⏸ Pause & resume – Control message flow while inspecting 🧹 Clear logs – Reset the message list instantly 👨💻 Author Created by Areg Sargsyan 🔗 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
- May 4, 2026description
PostMessage Tracker is a developer tool that helps you inspect and debug PostMessage scommunication 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. ✨ Features 📡 Track messages – View all sent and received postMessage events in real time 🔍 Powerful filtering – Filter messages by origin, type, or payload content 🧱 Block messages – Suppress handling of selected messages based on origin or data 🕒 Timestamps & metadata – See when messages were sent and where they came from 📋 Readable payloads – Pretty-printed JSON for easy debugging ⏸ Pause & resume – Control message flow while inspecting 🧹 Clear logs – Reset the message list instantly
PostMessage Tracker is a developer tool that helps you inspect and debug PostMessage scommunication 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. ✨ Features 📡 Track messages – View all sent and received postMessage events in real time 🔍 Powerful filtering – Filter messages by origin, type, or payload content 🧱 Block messages – Suppress handling of selected messages based on origin or data 🕒 Timestamps & metadata – See when messages were sent and where they came from 📋 Readable payloads – Pretty-printed JSON for easy debugging ⏸ Pause & resume – Control message flow while inspecting 🧹 Clear logs – Reset the message list instantly 👨💻 Author Created by Areg Sargsyan 🔗 https://www.linkedin.com/in/areg-sargsyan
Permissions & access
- Permissions
- storage
- Host access
- <all_urls>
Screenshots
About
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. 𝐇𝐨𝐰 𝐭𝐨 𝐮𝐬𝐞 Install extension Open DevTools (F12) Open the PostMessage Tracker tab Reload page Start inspecting messages ✨ 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬 📡 Track messages – View all sent and received postMessage events in real time 🔍 Powerful filtering – Filter messages by origin, type, or payload content 🧱 Block messages – Suppress handling of selected messages based on origin or data 🕒 Timestamps & metadata – See when messages were sent and where they came from 📋 Readable payloads – Pretty-printed JSON for easy debugging ⏸ Pause & resume – Control message flow while inspecting 🧹 Clear logs – Reset the message list instantly 👨💻 Author Created by Areg Sargsyan 🔗 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
Technical
- Version
- 0.1.2
- Manifest
- V3
- Size
- 25.26KiB
- Min Chrome
- 111
- Languages
- 1
- Featured
- No
Metadata
- ID
- alkcnimeadmepbknnpliacknonaihgai
- Developer ID
- u9910d94bcad4f85d9af3b4502a061bc8
- Developer Email
- [email protected]
- Created
- Apr 26, 2026
- Last Updated (Store)
- May 20, 2026
- Last Scraped
- Jun 9, 2026
- Website
- —
- Support URL
- —
- Privacy Policy
- —
Data sourced from the Chrome Web Store · last verified Jun 9, 2026.