Localhost Banner Alert is your companion for local development! This Chrome extension adds a visible banner to your browser to remind you when you're browsing localhost sites.
Install this extension from Chrome Web Store or Microsoft Edge Store.
After installing the extension, display it in your browser:
The banner is displayed on the right side of the visited site, as soon as one of the following terms is detected in URL:
- localhost
- .local
- 127.0.0.
- .test
You can manage several parameters within the extension. Simply click on the extension button and then on "Go to settings":
- Banner enabled: Yes / No
- Banner Text : the text on the banner (default: Localhost)
- Banner Position : Top Left / Top Right (default) / Bottom Left / Bottom Right
- Banner Theme : Orange (default) / Red / Yellow / Blue / Purple / Green
- Exclude URLs : fill in the URLs that should not have the banner. One URL per line without http(s).
If you have a problem using this extension, or would like to request an enhancement, feel free to create an issue or say hello on Twitter/X!
The extension does not collect any user information or other information. Only extension-related parameters are stored.
