postMessage-catcher
A Chrome extension that captures the content of postMessage.
As of June 2026, postMessage-catcher has 1,000 users and a 4.00/5 rating from 4 reviews in the Developer Tools category.
Usersno change0%
1.0K
1,000
Ratingno change0%
4.00
4 reviews
Reviewsno change0%
4
Version
2.0.0
Manifest V3
History
1 snapshotsTracking since Apr 21, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 21, 2026 | 1.0K | 4.00 | 4 | 2.0.0 |
| Now | 1.0K | 4.00 | 4 | 2.0.0 |
Permissions & access
- Permissions
- storage
- Host access
- None declared
Screenshots
About
An effective development tool to help you capture all messages posted and received on the current page. It aims to provide an easier debugging experience when you need to communicate with other iframes. Contributions are welcome to the Github project.
Technical
- Version
- 2.0.0
- Manifest
- V3
- Size
- 2.25MiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- Yes
Metadata
- ID
- henlmhlhpgnkeecjjcbhhcfmecohnilo
- Developer ID
- u1f017e9a2a4ebecda4bf9c32b579adae
- Developer Email
- [email protected]
- Created
- Jun 6, 2021
- Last Updated (Store)
- Apr 30, 2025
- Last Scraped
- Jun 4, 2026
- Website
- —
- Support URL
- —
- Privacy Policy
- —
Similar extensions
Alternatives to postMessage-catcher, ranked by description similarity.
postMessageObserver
A Chrome extension that allows you to observe the flow of postMessage messages on the side panel.
944
★ 5.0
PostMessage Listener
A basic logger for postMessages. This allows you to easily monitor the post messages on the console.
This is an open source…
102
★ 5.0
Github Filter Messages
Expand and Filter Github Messages, to make team commits and comments easier to read
10
★ 5.0
Postmaster
An advanced postMessage devtools panel for Chrome
60
Ybug - Visual feedback tool for websites
Capture current page, annotate it and send it to 25+ integrations such as GitHub, Trello, Asana, Jira and more...
615
★ 5.0
WebSocket DevTools
Professional WebSocket debugging tool with message proxying, simulation, blocking and favorites features
10.0K
★ 4.9
Page & IFrame Analyzer
Validate W3C HTML/CSS, test WCAG Accessibility, and check Responsive Design on web pages and any nested iframe.
36
★ 5.0
Message Channel Tracker
Track and pretty-print window, MessageChannel, BroadcastChannel, and Worker messages without breaking behavior.
13
Data sourced from the Chrome Web Store · last verified Jun 4, 2026.