Environment Marker

Name: Environment Marker
Rating: 4.83 (59 reviews)
Author: Geovanne Borges Bertonha

Use the Environment Marker extension and prevent screw-ups with the (programming) environments.

As of June 2026, Environment Marker has 40,000 users and a 4.83/5 rating from 59 reviews in the Developer Tools category.

Geovanne Borges Bertonha Developer Tools★ Featured

Chrome Web Store ↗.crx

Users0%

40.0K

40,000

Rating0%

4.83

59 reviews

Reviews0%

Version

1.2.1

Manifest V3

History

1 snapshots

Tracking since May 3, 2026.

View as table

Date	Users	Rating	Reviews	Version
May 3, 2026	40.0K	4.83	59	1.2.1
Now	40.0K	4.83	59	1.2.1

Permissions & access

Permissions: activeTabstoragealarms
Host access: <all_urls>

Screenshots

About

This extension helps you visually distinguish between different environments by adding a colored label to specified websites based on URL configurations. It supports regular expressions (including wildcards), a color picker, and positioning preferences.

Why Use Environment Marker?
In IT projects, working with multiple environments—such as development, QA, staging, and production—is common. However, since these environments often look identical, mistakes can happen.

Have you ever intended to run a "quick test" in the development environment, only to realize too late that you were actually in production? Misconfigurations and accidental changes can easily occur because the only visible difference is the discreet URL in the browser's address bar.

That is where Environment Marker comes in. This free and open-source Chrome extension lets you define your project’s environment URLs and assign a colored label in the browser window to identify them at a glance.

No more screw-ups in the production environment!

Features:
✅ Customizable labels – Choose label colors with a color picker.
✅ Regular expression support – Use regex patterns to match URLs dynamically.
✅ Flexible label positioning – Place the label in any corner: Top-right, Top-left, Bottom-right, Bottom-left or Moldure.
✅ Quick Config mode – A fast and easy setup option.
✅ Export & Import settings – Backup and restore configurations effortlessly.

How to Use:
- After installation, go to Chrome Settings > Extensions > Manage Extensions
OR
- Click the red pencil icon next to the address bar.
- Open the Options menu under Environment Marker.
- Configure your environments and click Save.

Latest Release – v1.2.1
Important: Before updating, export your settings for backup. Go to Chrome Settings > Extensions > Manage Extensions, open the extension’s Options menu, and use the Export feature.

What’s New?
✔ Minor bug fixes.
✔ Added support for ribbon transparency.

Environment Marker is open-source, and contributions are welcome!
GitHub: https://github.com/geovanneb/envmarker