Jinja Runtime Viewer lets you instantly view, interact with, and test apps built with Jinja.app on a real mobile device.

Designed for developers, students, educators, and product teams, the runtime viewer makes it easy to learn, experiment, and validate mobile apps without rebuilding or submitting a separate app. Simply enter your App ID created in the Jinja development environment and your app loads instantly on your device.

Learn by doing — on real devices

Jinja Runtime Viewer is especially useful for education and learning. Students and beginners can quickly see how their apps behave on mobile, test interactions, and understand real-world UI and UX without complex setup or deployment steps.

· Learn mobile app behavior through hands-on testing
· Experiment with layouts, navigation, and interactions
· Instantly see changes reflected on a real device
· Focus on learning and iteration, not build pipelines

Fully interactive app preview
Apps loaded in the runtime viewer are fully accessible and interactive:

· Tap, scroll, and navigate through all screens
· Click buttons, links, and menus
· Test flows, transitions, and user interactions
· Experience the app exactly as end users would

This makes the viewer ideal for testing, demonstrations, learning, and collaboration.
How it works

1. Build an app using the Jinja.app development environment

2. Generate or copy your App ID

3. Enter the App ID in Jinja Runtime Viewer

4. View and interact with your app live on mobile

Who it’s for

· Students learning mobile and cross-platform app development

· Educators demonstrating real mobile behavior

· Developers testing Jinja-built apps on real devices

· Designers reviewing UI and UX

· Teams sharing interactive previews with stakeholders

Key benefits

· No rebuilds

· No separate mobile app per project

· Fast iteration and real-device testing

· Public, shareable app previews

Jinja.app Runtime Viewer is a viewer and testing tool, not a standalone app builder. It displays applications created with Jinja.app and enables fast, interactive mobile preview for learning, testing, and collaboration.