> ## Documentation Index > Fetch the complete documentation index at: https://relivai-63.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Environment Variables > Save frequently used text as environment variables. *** You can designate frequently used text as environment variables and use them by calling them into your tests. Unlike [Variables](/guide/write/variable), environment variables are shared across the entire project. They are suitable for values (such as URLs, account IDs, etc.) that need to vary according to the test execution environment (local/dev/prod, etc.). ## 1. Setting Environment Variables In the text input field, drag to select the part you wish to set as an environment variable. Click the **\[Set as Variable]** button, and you can set it as an environment variable through the setting popup. Environment variable names can only use uppercase and lowercase letters, numbers, underscores (\_), and dashes (-).

## 2. Using Environment Variables When you type `{` (curly braces) in a text input field, a list of environment variables will appear. You can click to insert an environment variable. You can search by typing part of the environment variable name.

## 3. Editing Environment Variables Select the **\[Settings]** tab at the top of the project screen to go to the project settings page. In the **\[Environment Variables]** tab, you can manage your environment variables. By clicking the **\[Add new environment]** button, you can add a new environment.
Set environment variables to match different execution environments (such as local, dev, prod, etc.).