Flutter’s Isolates: Do Heavy Lifting Without Freezing Your App (or Your Brain) – Josh Software

“Flutter is fast… until you try parsing a 50MB JSON on the main thread.” — Ancient Flutter Proverb Ever tapped a button in your Flutter app and the whole thing just… froze? Yeah. That’s what happens when you hand your main UI thread a job meant for a forklift. Enter: Isolates — Flutter’s way of doing heavy work without nuking your user…