β οΈNot updated in over a year β οΈRequests 1 sensitive permission
Description
π§π»βπ» Open Source Developer Tool - Github - https://github.com/vvmgev/Inssman
Inssman add custom rules to modify HTTP requests and responses.
It is a free developer tool that which helps developers to organize their work more fast and easy. Inssman monitors the browser network for all tabs and if finds a request which matches one of the rule will accordingly modify.
β³οΈ What can Inssman do?β³οΈ
π Redirect Request: β‘οΈ Redirect any request like HTML/CSS/JS/JSON/...etc.
π Block Request: β‘οΈ Block all type of request like GET/POST/PUT/...etc
π Modify Query Params: β‘οΈ Easily remove presenting parameters in the url or replace the existing one or adding new parameter.
π Modify Header: β‘οΈ Add/Remove/Append request and response headers. One of example is developer can fix issue like CORS by setting Content-Security-Policy, X-Frame-Options headers and all headers can by change by provide header and value.
π Modify Response: β‘οΈ This cool feature can return custom data from the network. Now is possible to return data types like HTML/CSS/JS/JSON. By choosing one of type developer can write custom code in the editor which has powerful user interface like VSCODE which supports everything that developer need to write code.
π Inject File: β‘οΈ You can easily inject external CSS and JavaScript files into any web page by simply providing the link to the file. This is a great way to quickly modify the style or functionality of a website without needing to manually edit the code. If you want to inject your own custom code into a web page you can enter HTML, CSS, or JavaScript directly into the extension, and it will be injected into the page as if it were part of the original code.
π HTTP Logger: β‘οΈ This feature allows you to easily view and analyze the request and response headers of all tabs in one place, giving you valuable insights into the data being exchanged.
π Modify Request Body: β‘οΈ Now it is possible to modify the request body for both APIs, XMLHttpRequest and Fetch. This new feature allows modification of the body without making any changes to the code.
πThese all features are free and there isn't any limitation to create a rule.
π¨βπ»Source code
https://github.com/vvmgev/Inssman
πDocumentation
https://github.com/vvmgev/Inssman#documentation
πSupport us
https://github.com/vvmgev/Inssman/issues
Reviews (3 cached)
β
ββββ2025-10-15
Yury Pavlovsky
Fails to modify response headers.
β
ββββ2025-05-11
ddgaa haarhh
Response data cannot be copied and pasted
β
ββββ2024-06-25
Long Nguyen
I can't paste json to static response when creating a Modify Response Rule.
Permissions (9)
Permissions
declarativeNetRequestβΉ Can block or redirect network requests declarativeNetRequestFeedbackdeclarativeNetRequestWithHostAccess scriptingβΉ Can inject scripts into web pages storageβΉ Can store data locally in your browser tabsβΉ Can see your open tabs and their URLs unlimitedStorage webNavigationβΉ Can monitor navigation events webRequestβΉ Can observe and analyze network traffic
Details
| Version | 1.0.64 |
| Updated | Jun 5, 2024 |
| Size | 3.51MiB |
| First Seen | Mar 29, 2026 |
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