InjectJS – JavaScript Injector & Custom Script Manager
Developer Tools
Inject custom JavaScript (JS) into any webpage, automate tasks, and manage scripts. Ideal for developers and power users.
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- 877
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injectjsteam
2 listings we've seen · as of 4 Oct 2026. This is the maker name shown on the store, not proof of who owns the company.
Modify Header
Developer Tools
Add, override, or remove request and response headers with domain-scoped rules.
- Store users
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