# Flutter Tools & UI Builder Pro — Essential tools for Flutter UI > Essential tools for Flutter UI (iPhone/iPad app by Thiem Nguyen.) - Source: https://appshunter.io/ios/app/flutter-tools-and-ui-builder-pro/id6499068488 (this page in markdown: same URL + `.md`) - Developer: [Thiem Nguyen](https://appshunter.io/developer/1658699065) - Category: Developer Tools, Utilities - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 13.0 · 67 MB - Languages: American English - Released: 2024-04-21 - Data updated: 2026-08-24 - User reviews in markdown: https://appshunter.io/ios/app/flutter-tools-and-ui-builder-pro/id6499068488/reviews.md ## What is Flutter Tools & UI Builder Pro? Flutter Tools is the ultimate toolkit for Flutter developers — 34+ tools in one beautiful app. DESIGN TOOLS • Gradient Generator — Linear, radial, sweep, and shimmer gradients • Box Decoration Editor — Borders, shadows, radius, and backgrounds • Glassmorphism Generator — Create frosted glass UI effects • Color Palette — Material & Tailwind color palettes with shades COLOR TOOLS • Color Shade Generator — Generate light/dark variants • Color Converter — HEX ↔ RGBA ↔ HSL with live preview CODE TOOLS • JSON to Dart — Convert JSON to typed Dart classes • Snippet Generator — Reusable Flutter code snippets • Base64 Encoder/Decoder — Encode and decode Base64 • Regex Tester — Test and validate regular expressions • Code Formatter — Format Dart code with style options • Lorem Ipsum Generator — Generate placeholder text UI TOOLS • Widget Preview — Preview Material widgets with customizable props • Container Editor — Visual container/styled box editor • Icon Search — Browse and preview all Material & Cupertino icons • Responsive Checker — Test layouts at multiple screen sizes • Animation Curve — Visualize and preview Flutter animation curves ASSET TOOLS • Assets Generator — Generate app icons and splash screens • Package Checker — Check dependencies for updates and security REFERENCE TOOLS • Widget Catalog — Material 3 widget reference with properties & code • Package Explorer — Explore pub.dev packages with install instructions • Dart API Reference — Dart SDK classes, methods, and constructors • State Management Comparison — Compare Riverpod, Provider, Bloc, GetX • Animation Reference — Flutter curves, controllers, and tweens • Git Cheat Sheet — Common Git commands with one-tap copy LEARNING TOOLS • Learning Paths — Structured Flutter learning paths from beginner to advanced • Flutter Roadmap — Interactive roadmap to becoming a Flutter developer • Snippet Library — Curated Flutter code snippets with step-by-step guides • Concept Visualizer — Interactive visualizations of Widget Tree, BuildContext, Constraints UTILITIES • Layout Solver — Detect layout issues and get fix suggestions • Color Accessibility Checker — WCAG contrast compliance checker • Asset Optimizer — Generate pubspec.yaml asset configurations • Release Checklist — Pre-launch checklist for iOS • i18n Manager — Manage localization across EN, ZH, ZH-Hant PRO FEATURES • Remove all ads • Unlock all 30+ tools • Priority access to new tools • Cloud sync your settings • Export & share projects • All future tools included ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Premium Lifetime | $6.99 | one-time | ## Version history (last 5 releases) ### 3.1 — 2026-05-27 DESIGN TOOLS • Gradient Generator — Linear, radial, sweep, and shimmer gradients • Box Decoration Editor — Borders, shadows, radius, and backgrounds • Glassmorphism Generator — Create frosted glass UI effects • Color Palette — Material & Tailwind color palettes with shades COLOR TOOLS • Color Shade Generator — Generate light/dark variants • Color Converter — HEX ↔ RGBA ↔ HSL with live preview CODE TOOLS • JSON to Dart — Convert JSON to typed Dart classes • Snippet Generator — Reusable Flutter code snippets • Base64 Encoder/Decoder — Encode and decode Base64 • Regex Tester — Test and validate regular expressions • Code Formatter — Format Dart code with style options • Lorem Ipsum Generator — Generate placeholder text UI TOOLS • Widget Preview — Preview Material widgets with customizable props • Container Editor — Visual container/styled box editor • Icon Search — Browse and preview all Material & Cupertino icons • Responsive Checker — Test layouts at multiple screen sizes • Animation Curve — Visualize and preview Flutter animation curves ASSET TOOLS • Assets Generator — Generate app icons and splash screens • Package Checker — Check dependencies for updates and security REFERENCE TOOLS • Widget Catalog — Material 3 widget reference with properties & code • Package Explorer — Explore pub.dev packages with install instructions • Dart API Reference — Dart SDK classes, methods, and constructors • State Management Comparison — Compare Riverpod, Provider, Bloc, GetX • Animation Reference — Flutter curves, controllers, and tweens • Git Cheat Sheet — Common Git commands with one-tap copy LEARNING TOOLS • Learning Paths — Structured Flutter learning paths from beginner to advanced • Flutter Roadmap — Interactive roadmap to becoming a Flutter developer • Snippet Library — Curated Flutter code snippets with step-by-step guides • Concept Visualizer — Interactive visualizations of Widget Tree, BuildContext, Constraints UTILITIES • Layout Solver — Detect layout issues and get fix suggestions • Color Accessibility Checker — WCAG contrast compliance checker • Asset Optimizer — Generate pubspec.yaml asset configurations • Release Checklist — Pre-launch checklist for iOS • i18n Manager — Manage localization across EN, ZH, ZH-Hant ### 3.0 — 2026-05-18 • Added powerful Gradient Generator improvements with smoother real-time preview • New Color Shade Generator for creating beautiful palettes and tints • Improved JSON to Dart model generation accuracy • Added BoxDecoration visual builder with live customization • New Animation Curve Visualizer for Flutter developers • Performance improvements and bug fixes • Enhanced dark mode and Material Design 3 experience • Improved export options for Flutter code, CSS, and PNG • General UI/UX refinements for a smoother workflow ### 2.0 — 2024-11-27 Enhanced gradient generator for smoother designs. New Glassmorphism templates added. Improved JSON to Dart conversion efficiency. Bug fixes and performance upgrades ### 1.2 — 2024-05-10 Reopen all features: - Lorem-ipsum generator - JSON to DART - Bug fix and improvement performance - Fixed an issue where the application did not run smoothly on some low-end iOS devices ### 1.1 — 2024-04-27 - Change app icon. - Bug fix and improvement performance - Fixed an issue where the application did not run smoothly on some low-end iOS devices Important We temporarily closed 2 functions due to potential logic issue: - Lorem-ipsum generator - JSON to DART We will fix it as soon as possible in the next release version. ## Apps similar to Flutter Tools & UI Builder Pro | App | Rating | Price | Category | | --- | --- | --- | --- | | [MockApp Wireframe UI Mockup](https://appshunter.io/ios/app/mockapp-wireframe-ui-mockup/id6478529440) | 4.7 (45) | Free | Developer Tools | | [CometChat Builder](https://appshunter.io/ios/app/cometchat-builder/id6740586011) | — | Free | Developer Tools | | [Limooonik](https://appshunter.io/ios/app/limooonik/id1629631880) | — | Free | Developer Tools | | [DockUI: Design For SwiftUI](https://appshunter.io/ios/app/dockui-design-for-swiftui/id6496860953) | 5.0 (6) | Free | Developer Tools | | [SketchSite](https://appshunter.io/ios/app/sketchsite/id6748966984) | — | Free | Developer Tools | | [DevPocket – Developer Toolkit](https://appshunter.io/ios/app/devpocket-developer-toolkit/id6748292890) | — | Free | Developer Tools | ## More apps by Thiem Nguyen - [Habit Crafter](https://appshunter.io/ios/app/habit-crafter/id6496008622) - [Sound Trainer: Listen Better](https://appshunter.io/ios/app/sound-trainer-listen-better/id6497068502) - [Math Master: Quiz & PDF](https://appshunter.io/ios/app/math-master-quiz-and-pdf/id6497404071) - [Tuner Master: Pitch Accuracy](https://appshunter.io/ios/app/tuner-master-pitch-accuracy/id6498151536) - [Four Pics Baybayin: Puzzle](https://appshunter.io/ios/app/four-pics-baybayin-puzzle/id6499133298) All apps by Thiem Nguyen: https://appshunter.io/developer/1658699065 ## Related topics [flutter sdk](https://appshunter.io/ios/topics/flutter-sdk) · [axpert flutter](https://appshunter.io/ios/topics/axpert-flutter) · [grial uikit](https://appshunter.io/ios/topics/grial-uikit) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*