No more screw-ups in the production environment!

It is a free. It is open-source.

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What is the Environment Marker?

The Environment Marker is a free and open-source Chrome extension that enables you to configure the URLs of your project's environments and assign a colored ribbon to the corner of the browser window, thereby identifying the environment for you.
Widely used

Used by more than 20,000 people weekly.

Our community consists of a diverse range of professionals in the IT field, including software developers, architects, QA engineers, and various other roles.
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We have been making the Internet a safer environment by assisting people in avoiding mistakes since 2015.

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Featured by Google

The Environment Marker extension has received Google's prestigious "Featured" badge, recognizing its adherence to recommended best practices for Chrome extensions.
A complete solution

A simple solution to prevent screw-ups

The feature set includes support for regular expressions in URL addresses, a color picker for label customization, the ability to choose label position, a "Quick Config" mode for simplified setup, and export/import functionality.
Easy setup

"Quick Config" mode is an easy and fast way to set the ribbon identifier from any page with just a few clicks. The extension supports either URLs or regular expressions.

Customizable ribbon

The color picker offers a convenient way to select the desired color for the ribbon. Additionally, it is possible to position the ribbon in your preferred corner

Export and Import

It is possible to utilize the export feature to download and share the configuration, allowing team members to easily import it for their use.

Check what the Environment Marker users are saying

"Thank you for saving me from countless "Did I make that change in QA or Dev?" thoughts in my head!"
Chrisse Carothers
"Simple but Extremely Effective! I know this is going to be one of my favorite extensions and will be one that I reinstall right away, whenever I am setting up a new environment!"
"Super helpful for our dev team. Works like a charm. No more special code needed when cloning environments."
Ruben Chavez

Environment Marker for Enterprise is coming soon!

It will bring company-wide governance and tons of great features.