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Build Web3 at Lightning Speed

Juno is a blockchainless platform designed for developers aiming to craft groundbreaking applications on the Web3 space.


Ensure maximum security and privacy by using passwordless authentication to securely and anonymously identify users.

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A simple and convenient programming model for storing data on the blockchain.

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Easily store and serve user-generated content, such as files, photos, and videos, on Web3.

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Maintain your brand identity with a custom domain for your decentralized application.

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Execute custom code in response to background events, extend Juno's smart contracts, and develop features that run on-chain.

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Gather valuable, anonymous user insights with a simple, lightweight, and open-source web analytics that do not use cookies.

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Crafted for web devs

There are numerous ways to develop on Juno without sacrificing your preferred tech stack

Launch your app now

Whether you're planning to build a website, blog, or application, quickly scaffold your project with ready-made templates.

npm create juno@latest
An satellite being launch to space through the clouds.

Plug & Play Authentication.

Juno Authentication ensures deep integration with services like Datastore and Storage, offering a cohesive ecosystem.

You can manage your users in an administration console. A new entry is automatically created when a user successfully signs in.

import { signIn } from "@junobuild/core";

<button onClick={signIn}>Sign-in</button>

Efficient Libraries.

Juno offers advanced blockchain capabilities via user-friendly JavaScript libraries, enabling seamless integration into your frontend projects.

import { setDoc } from "@junobuild/core";

await setDoc<Example>({
collection: "my_collection_key",
doc: {
key: "my_document_key",
data: myExample,

Developer-Focused Tools.

Designed by developers for developers, Juno's tools and console empower you to manage your dApps, monitor, and administrate your data.

Utilize the convenient CLI or GitHub Actions to deploy your projects with ease.

npm i -g @junobuild/cli
❯ juno deploy

Serverless Functions.

Enhance Juno's capabilities with strongly-typed hooks, automatically triggered to execute custom logic on your smart contract.

#[derive(Serialize, Deserialize)]
struct Person {
hello: String,
amount: DocDataBigInt,

fn on_set_doc(context: OnSetDocContext) -> Result<(), String> {
let data: Person = decode_doc_data(&;

print(format!("Caller: {}", context.caller.to_text()));
print(format!("Data: {}", amount.value));

Take control of YOUR CODE.

Shape your future apps controlled exclusively by you.

Start building