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Where do I find support?

For help and questions about best practices, join our Discord channel. You can report issue or bug on GitHub.

How much does it cost?

Getting started is free. Developers are responsible for operating costs. Transaction costs may apply for some features. Detailed information and estimations are available.

What happens if Juno disappears?

In the unlikely event of Juno's disappearance, you, as the sole controller of your mission control and satellites, would retain full control over your creations. They would continue to function independently without any reliance on Juno.

Can I just deploy my website on the Internet Computer?

Absolutely! With Juno, you have the flexibility to choose the level of functionality you want for your project. Whether you simply want to host your static website on the Internet Computer or take advantage of Juno's rich features like authentication, datastore, and storage for building dynamic dapps, the choice is yours.

Is Juno a project of the DFINITY foundation?

No. We did not seek or receive any specific support from the foundation, nor did we apply for any grants.

Does Juno exercise control over developers' work?

No, Juno does not exert any control over developers' work. Juno is designed to provide developers with true control and autonomy over their projects.

Developers have full ownership and control over their mission control, satellites, and the applications they build on the platform.

Juno's philosophy aligns with the principles of Web3, empowering developers with transparency, decentralization, and the freedom to create and innovate without external interference.

How does Juno differ from Firebase?

Besides the fundamental differences between the Web2 and Web3 approaches, which empower developers using Juno with true control and future governance over their work, there are additional distinctions that apply regardless of the underlying philosophy.


Firebase is a closed-source Backend as a Service that restricts access to the underlying details and limits the ability to make custom modifications.

In contrast, Juno is fully open-source, providing transparency and the flexibility to customize as needed.


Firebase follows a usage-based pricing model, where costs are calculated based on factors like request volume and data storage. The absence of a cap-setting option is a cause for concern, as unexpected spikes in usage can result in substantial expenses.

In contrast, Juno takes a different approach. Developers pre-charge their smart contracts with cycles, which are then utilized to cover computation and memory usage of the satellites and mission control. This mechanism eliminates the risk of encountering unexpected financial burdens due to unforeseen usage surges.

Do you have a library for [some other language]?

We officially support JavaScript.

Community-supported libraries and contributions are warmly welcomed.

Where can I find resources about Juno?

The documentation is a great starting point to explore Juno.

Additionally, the blog provides insightful tutorials for various frameworks.

You can also check out the repository, which features multiple examples to help you get started.

Do you have more questions or need further assistance? Feel free to reach out to us on Discord or Twitter. We're here to help!