The Switcher[Change Domains]

Partially replace the URL of the currently open web page and open it in another tab. Please use it for switching domains. etc...

A Chrome extension that lets you switch between production, staging, and local development domains with a single click. It keeps the current page's URL path and query parameters intact while instantly switching to the matching URL on another registered domain. Click the icon (or press Ctrl+Shift+↑) to see a list of URLs across all environments — no more copy-pasting between them. If a project has just 2 registered domains, clicking the icon switches you instantly, no popup needed. Useful for situations like: Opening the page you're checking in production directly in your local or staging environment Eliminating the manual work of rewriting URLs for each environment Quickly comparing the same page (a product page, an article, etc.) across multiple domains Key features: - Launch right from the address bar: type "sw" in the address bar and press space to see switch candidates for the current page. Keep typing to narrow them down further. - Drag-and-drop reordering: grab a project card and reorder it however you like. Pin the projects you use most to the top. - Quickly search projects: real-time filtering by project name or URL keyword. Find what you need instantly, even as your project list grows. - Copy any URL with one click: a copy button has been added to every URL in the popup. Get it onto your clipboard with a single click. - Export/import your settings: save and load your settings as a JSON file. Handy for sharing with your team or moving to a new computer. - Automatic sync across devices: settings sync automatically across Chrome on the same Google account. The same setup is ready on any device. - Set "same tab" instantly from the popup: a toggle at the bottom of the popup switches between "same tab" and "new tab" on the spot — no need to open the options page. Just register a project name and its domains in the options page. Supports multiple domains and multiple projects. Recommended for web coders, front-end engineers, web directors, and anyone who moves between multiple environments. 【updates】 2026-07-09: Minor fixes 2026-07-03: Added color labels for environment URLs. Assign a color to each URL in the options page and a colored dot will appear before that URL in the popup, letting you instantly tell dev, staging, and production apart at a glance. Removed the unnecessary "scripting" permission for improved privacy and security. 2026-06-30: Fixed "open in same tab" behavior For projects with exactly 2 document roots, clicking the icon now switches instantly without showing the popup (same tab when ON, new tab when OFF). Also redesigned the options page with a new white-based UI. 2026-05-14: Security Update 2024-06-12: Enabled the option to always open in the same tab on the options screen (only applicable for 2 domains). 2024-05-01: Modified so that a new tab opens right next to the active tab when there are two registered URLs. 2024-05-01: Modified so that a new tab opens right next to the active tab when there are two registered URLs. 2024-04-09: Added a link to open in the same tab within the popup. 2023-12-15: Added support for French, Korean, Russian, Thai, Turkish, Ukrainian, and Chinese languages. 2023-11-22: Unnecessary permissions are removed. 2023-11-17: Modification for security protection and name change. 2023-11-15: Fixed a bug where pressing the 'add project' button while adding a project in the settings screen caused the data being entered to disappear. Fixed to not use remote source code. 2023-11-14: Fixed an issue where multiple tabs open when specifying two domains in multiple projects. 2023-03-04: Now launches with the shortcut "Ctrl + Shift + Up". (ver.1.30.0.0) 2023-03-03: Fixed minor bugs 2023-03-01: Multilingual support started. English and Japanese are currently available. It depends on Chrome's own language settings. 2023-02-27: Changed the data storage destination from localstorage to chrome.storage in v1.20 (to get it in the background) *If you are using the previous version, please set it again on the option screen. Also, you can now switch URLs from the context menu displayed by right-clicking within the open page. Please take advantage of it. 2023-02-17: v1.10 When there are two URLs in the project, the URLs that are switched are automatically opened at the same time when the icon of The Switer is pressed. If there are 1, 3 or more, the pop-up will be displayed as before. We also made some minor adjustments to the layout of the options page. If there are 1, 3 or more, the pop-up will be displayed as before. We also made some minor adjustments to the layout of the options page.