Free utilities for Flutter and Dart developers. Generate models, build themes, scaffold routing β all without leaving the browser.
Paste JSON and get Dart classes with fromJson and toJson for nested objects and lists β no code generation step required.
List typed fields and get a data class with copyWith, ==, hashCode, and toString β ideal for immutable UI state.
Convert hex (#RGB, #RRGGBB, #AARRGGBB) to Flutter Color(0xβ¦) and Color.fromRGBO(...) for copy-paste into your widgets.
Paste your pubspec.yaml and check for syntax errors, version conflicts, and common misconfigurations before running pub get.
Paste a list of image, font, or asset paths and get a valid `flutter: assets:` section with globs and folders β skips the YAML indentation mistakes that break builds.
Turn a simple route list into starter GoRouter code with named GoRoutes and placeholder builders you replace with real screens.
Visually design a Material 3 ThemeData β primary, secondary, surface colors β and export production-ready Dart code.
Create and manage .arb localization files for Flutter apps. Add keys, translations, and placeholders with a visual editor.
Generate the flutter_launcher_icons configuration and all required icon sizes from a single source image.
Regex tester, JSON to Pydantic, cron builder, type hints generator, and more free Python utilities.
Browse Python tools βAdmin generator, secret key generator, settings checker, serializer builder, and more free Django tools.
Browse Django tools βJSON to TypeScript, CSS to Tailwind, SVG to component, color contrast checker, and more free React tools.
Browse React tools βPackage.json generator, JWT decoder, Dockerfile generator, .gitignore builder, and more free Node.js tools.
Browse Node.js tools βApp icon generator, deep link tester, screenshot resizer, push notification builder, and more free mobile tools.
Browse Mobile tools βWe build custom developer tooling and internal applications. Tell us what you need.