Create beautiful cross-platform apps for Mobile, Desktop, Embedded & Web with the free Felgo framework!
Felgo is a cross-platform application development SDK, based on the Qt framework and greatly extending it.
With Felgo, you can create modern, flexible & beautiful apps, compiled natively from a single code-base.
Speed up your development with hot reload and more cutting-edge tooling for all supported platforms. Save up to 90% code with true cross-platform components, service integrations and native UI/UX out-of-the-box.
Try this Felgo example right in your browser without installing the SDK.
import Felgo 3.0
import QtQuick 2.0
App {
id: app
Navigation {
NavigationItem {
title: "Main Page"
icon: IconType.heart
NavigationStack {
Page {
id: mainPage
title: "Main"
Column {
anchors.centerIn: parent
AppButton {
text: "Push Sub Page"
onClicked: mainPage.navigationStack.push(subPageComponent)
}
AppButton {
text: "Desktop Theme"
onClicked: Theme.platform = "windows"
}
AppButton {
text: "Android Theme"
onClicked: Theme.platform = "android"
}
AppButton {
text: "iOS Theme"
onClicked: Theme.platform = "ios"
}
}
}
}
}
NavigationItem {
title: "Second"
icon: IconType.image
NavigationStack {
Page {
title: "Second Page"
AppImage {
source: "../assets/felgo-logo.png"
anchors.centerIn: parent
}
}
}
}
}
Component {
id: subPageComponent
Page {
title: "Sub Page"
backgroundColor: "#f1f2f3"
AppText {
text: "Hi there!"
anchors.centerIn: parent
}
}
}
}
You can try many more examples in your browser, or on your mobile phone with the Felgo Showcase App.
200+ APIs on top of Qt, together with unique tooling and services. Felgo makes Qt even better!
Create native cross-platform apps, with native UI/UX from a single code base, or integrate with existing native apps.
Leverage your existing JS skills. Felgo uses QML & JavaScript as its primary development language.
Learn about differences and similarities between Felgo, Flutter and React Native, and how you can benefit from them.
Make use of professional tooling and features to speed up development for embedded targets.
Create cross-platform single and multiplayer games with rich features and top performance.
QML Hot Reload with Felgo Live allows you to change your source code and view the result in realtime, without losing the application state.
Test any QML, JavaScript and asset changes instantly on every connected device, immediately after saving.
Add leading third-party native services in minutes, without the hassle of dealing with native framework integrations.
Make use of plugins for Firebase, ads, in-app purchases, analytics, push notifications, crash reporting, and more.
Felgo Cloud Builds helps you to boost your app development with continuous integration and delivery for Qt and Felgo projects.
Build, distribute and publish your apps from the cloud, without installing and maintaining local toolchains.
Felgo offers professional development, consulting and training services. All services are offered on-site, remote or in our Vienna office. Available internationally.
Successful Projects
Years On Market
"If I only knew about Felgo before! It would have saved us about 50% of the development time compared to plain Qt, and we would have been able to focus on the app itself, instead of recreating problem solutions that are already provided by Felgo, and that are not unique or specific for our app. So, please: Don’t make the same mistakes, use Felgo! Just as we will, from now on."
“Using Felgo as a front-end with simple off the shelf components, QML for custom visual components and the entirety of Qt and C++ as a back-end makes even the most difficult apps easy to build.”
"I am using Felgo Live code reloading and my feedback is.. WOW! It is SO much easier!! So fast! I've several devices connected at once and it's worked perfectly. This is already speeding up my development massively."
Develop beautiful native mobile apps, cross-platform.
Create stunning UIs and animations to wow your users and rank higher in the app stores.
Code & time savings up to 80% thanks to the reactive & declarative language and 200+ APIs.
Create high performance embedded system apps & second screen apps.
Native performance and rapid UI creation, powered by C++ & JavaScript. Felgo is an official Qt Technology Partner.
From idea to market in weeks: use the game templates for card games, action games and many more. Felgo powers top-grossing games for iOS & Android - join too!
Build content rapidly with the in-game level editor. Boost retention with Multiplayer and Felgo Cloud services.
