Touch the widgets.
Then watch the episode that built them.
These aren't mockups. They're real Flutter logic re-created in the browser. Every interaction is exactly what you'll ship.
Four tracks. Every widget
you'll ever need to ship.
Animations
5 episodesImplicit, explicit, and physics-based motion. From tween to rive.
AnimatedContainer deep dive
Final output preview
AnimationController from scratch
Final output preview
TweenAnimationBuilder patterns
Final output preview
Hero transitions & page routes
Final output preview
Physics simulations with springs
Final output preview
State Management
4 episodessetState to Riverpod. Build the right mental model, then scale it.
InheritedWidget explained
Final output preview
Provider without magic
Final output preview
Riverpod: AsyncNotifier pattern
Final output preview
Optimistic UI updates
Final output preview
API Integration
4 episodesHTTP, WebSockets, GraphQL. Connect to anything. Handle every state.
Dio interceptors & retries
Final output preview
StreamBuilder live data
Final output preview
Offline-first with Hive cache
Final output preview
GraphQL subscriptions
Final output preview
Deployment
4 episodesFrom flutter build to app store. CI/CD, signing, and release channels.
Build flavors: dev/staging/prod
Final output preview
GitHub Actions for Flutter CI
Final output preview
App store submission checklist
Final output preview
OTA updates with Shorebird
Final output preview
You've seen yourself in
one of these terminals.
Stuck in tutorial hell.
You've finished 12 courses. You still can't ship an APK.
Can center a div. Can't center a Column.
Web made sense. Mobile feels like a different planet.
Writes Rust at work. Googles "flutter center widget" at midnight.
You understand systems. UI layout is your blind spot.
They were stuck.
Now they ship.
"I had tried 4 Flutter courses. WidgetBuilder was the first one where I actually understood WHY a widget rebuilds. Shipped my first app to the Play Store in week 3."

"I'm a Rails engineer. The episode on StreamBuilder clicked something in my brain that months of Flutter docs n..."

"The Deployment track alone was worth it. I'd been afraid of the App Store submission process for months. Ep. 6..."

Take the widgets
everywhere you code.
The learning app puts every episode, interactive demo, and code snippet in your pocket. Commute. Lunch break. Midnight train.