Environment Variable

An environment variable in Bubble is a stored value that your app can access at any time without exposing it in your visible workflow logic. It keeps sensitive data like API keys out of plain sight.

These variables let you manage different settings for different environments, like development and production, without changing your app's core logic every time you switch.

Key Takeaways

• Hidden from view: Environment variables store sensitive values that never appear in your public-facing app code.
• Used for API keys: They are the standard way to store third-party API credentials safely inside Bubble.
• Easy to update: You can change a variable's value without touching any workflow or page in Bubble.
• Supports multiple environments: Different values can apply to your test and live versions of the same app.

What is Environment Variable in Bubble?

An environment variable in Bubble is a named value stored at the app level, used to hold sensitive data like API keys, secret tokens, or config values. It keeps credentials out of your workflows and safe from accidental exposure.

Environment variables sit outside your normal workflow logic. They live in your app settings and are referenced by name wherever you need them.

• Named reference system: You assign a name to each variable, then call that name inside your API connectors or backend workflows.
• Not visible in exports: These values are not included when someone inspects your app's client-side data.
• Set once, used everywhere: One variable can be referenced across many workflows and connectors throughout your app.

Once set, environment variables make your app cleaner and safer. You stop hard-coding sensitive values into workflows where they could be seen or accidentally shared.

How Environment Variable Works in Bubble

In Bubble, you create environment variables inside the Settings panel under the "Environment variables" tab. You give each one a name and a value. Then you reference the variable name inside your API connector or plugin setup instead of pasting the raw value.

Bubble separates values between your development and live environments. This means you can use test credentials while building and switch to production credentials when you go live.

• Settings panel setup: Navigate to Settings, find the Environment Variables section, and add your key-value pairs there.
• Referenced by name: Inside the API Connector, you call the variable using its name rather than typing the actual credential string.
• Separate dev and live values: Bubble lets you set different values for development mode and live mode independently.

This separation matters a lot when you work with third-party APIs that charge per request. Using test keys during development keeps your costs predictable.

Why Environment Variable Matters for No-Code Apps

Environment variables protect your app from accidental data leaks. Without them, API keys and secrets get pasted directly into workflows, where they are easier to expose, share by mistake, or forget to update when credentials change.

Managing credentials this way is one of the basic security practices for any app, no-code or not. Bubble makes it accessible for builders without a technical background.

• Prevents credential exposure: Storing keys as variables means they are never pasted in plain text inside a workflow step.
• Faster credential rotation: When an API key expires or gets compromised, you update one variable instead of hunting through every workflow.
• Team safety: Collaborators can build workflows that call variables without ever seeing the actual credential values.

This practice aligns with how professional development teams handle secrets. At LOW/CODE Agency, we treat environment variable setup as a non-negotiable part of any Bubble app we build.

Common Mistakes When Using Environment Variables in Bubble

The most common mistake is pasting raw API keys directly into API Connector fields instead of using environment variables. This makes credentials visible, hard to rotate, and easy to copy accidentally during duplication or sharing.

Even experienced Bubble builders skip this step when moving fast. It creates real security problems later.

• Hard-coded keys in workflows: Pasting a raw API key into a workflow text field means it gets exposed anywhere that workflow is visible.
• Forgetting to set live values: Builders set development values and forget to add the live equivalents, causing errors after deployment.
• Reusing the same key across apps: Each Bubble app should reference its own set of variables rather than sharing credentials between projects.

Setting up environment variables properly at the start of a project saves significant cleanup time later, especially when credentials need to change.

Conclusion

Environment variables in Bubble are a simple but important part of building secure apps. They keep sensitive values out of your workflows and make credential management much easier as your app grows. Teams at LOW/CODE Agency set these up at the start of every Bubble project we take on.

At LOW/CODE Agency, we've helped 450+ clients build and scale apps on Bubble and other no-code platforms. Our clients include global brands like Medtronic, American Express, Coca-Cola, Zapier, and Sotheby's.

Frequently Asked Questions

Where do I add environment variables in Bubble?

Go to Settings in your Bubble editor, then find the Environment Variables tab. Add your variable name and value there.

Can I use environment variables in Bubble plugins?

Yes. Most Bubble plugins that require API keys let you reference environment variables instead of pasting raw credentials.

What is the difference between dev and live environment variables in Bubble?

Dev variables apply when your app runs in development mode. Live variables apply when users access your published app.

Are environment variables in Bubble completely hidden?

They are hidden from client-side exposure, but Bubble admins with full app access can view them inside settings.

Can environment variables store non-sensitive values in Bubble?

Yes. You can use them for any configuration value you want to manage centrally, not just API keys or secrets.

What happens if I forget to set a live environment variable in Bubble?

Your app will likely throw an API error in live mode. Always check that both dev and live values are set before publishing.