Frontend Frameworks & Tooling

EX

Expo

4.5/5.01 verified review

Freemium·Open Source·MIT

Development and deployment platform for building native apps with React and React Native.

• Unified ecosystem for building and deploying iOS and Android apps.
• Built-in Over-The-Air (OTA) updates for rapid bug fixes.
• Advanced CLI and simulation tooling optimized for modern developer workflows.

53.2kstars on GitHub

RI

Rive

4.5/5.01 verified review

Freemium

Interactive graphics engine for games, apps, and interactive UI.

• High-performance GPU rendering for complex vector graphics.
• Unified collaboration between coding agents (CLI) and designers (visual editor).
• Open-source multi-platform runtimes with web, mobile, and console support.

2stars on GitHub

CS

Churnkey SDK

4.4/5.01 verified review

Freemium·Open Source·MIT

Open-source React component for customer cancellation flows, surveys, and retention.

• Production-ready component integrated via an npm package.
• Fully free open-source tier requiring no prior platform registration.
• Supports configurable flows featuring surveys, feedback, and discount offers.

24stars on GitHub

HV

Hyperiux Vault

4.3/5.01 verified review

Freemium·Open Source·MIT

Interaction effects library and components for React and Next.js

• Interaction effects built as real, editable source code rather than locked black boxes.
• Direct component installation into your project repository using the official CLI.
• Native integration with established frontend ecosystem libraries like GSAP, Three.js, and Lenis.

107stars on GitHub

FL

FlutterFlow

4.3/5.01 verified review

Freemium

Visual development platform for building mobile, web, and desktop applications powered by Flutter.

• Generates clean Flutter source code that can be exported for independent deployment.
• Native integrations with Firebase, Supabase, and custom RESTful APIs.
• Granular visual UI builder with support for custom code widgets and components.

BT

BTST

4.1/5.01 verified review

Freemium·Open Source·MIT

Open-source TypeScript system to add full features to your existing React applications.

• Fully open-source TypeScript architecture.
• Allows adding full-stack plugins without a hosted control plane.
• Generated code and UI can be fully ejected and modified.

79stars on GitHub

LO

LottieFiles

4.0/5.01 verified review

Freemium

Comprehensive platform to create, manage, and implement lightweight Lottie-based animations.

• Significant file size reduction compared to raster formats.
• Unified workflow facilitating design-to-development handoffs.
• Extensive library of resources ready for implementation via native SDKs.