Why is Firebase functions not free?

Because of updates to its underlying architecture planned for August 17, 2020, Cloud Functions for Firebase will rely on some additional paid Google services: Cloud Build, Container Registry, and Cloud Storage. These architecture updates will apply for functions deployed to the Node. js 10 runtime.9 Tem 2020

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Does Firebase support web?

To add Firebase to your web service, copy your Firebase project’s custom code snippet, JavaScript and CSS files into your web service : Go to the Firebase console and select your project. From the project overview page, under the text Get started by adding Firebase to your app, select web.

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