✨ Zero-config AI chat assistant. No API key needed — sign up and instantly chat with GPT-5, Claude 4, Gemini 2.5, DeepSeek & 100+ top models. Pay-as-you-go saves you more. Available on Web, iOS, macOS, Android, Linux, Windows.
Repository Index
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A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript.
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
⚡ Write Native with TypeScript ✨ Best of all worlds (TypeScript, Swift, Objective C, Kotlin, Java, Dart). Use what you love ❤️ Angular, React, Solid, Svelte, Vue with: iOS (UIKit, SwiftUI), Android (View, Jetpack Compose), Flutter and you name it compatible.
A Foundation for Scalable Cross-Platform Apps
Mobile-first, accessible components for React Native & Web to build consistent UI across Android, iOS and Web.
A fully open source & end-to-end encrypted note taking alternative to Evernote.
📱🚀 🧩 Cross Device & High Performance Normal Form/Dynamic(JSON Schema) Form/Form Builder -- Support React/React Native/Vue 2/Vue 3
A React environment for cross platform desktop apps
coss.com/ui is the official design system of Cal.com
TweetDeck for GitHub - Filter Issues, Activities & Notifications - Web, Mobile & Desktop with 99% code sharing between them
The A32NX & A380X Project are community driven open source projects to create free Airbus aircraft in Microsoft Flight Simulator that are as close to reality as possible.
The cross-browser extension framework.
A simple and lightweight SQL client desktop with cross database and platform support.
Cross-Platform Keystroke Launcher
Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨
Build beautiful, interactive API Docs with embeddable React or Web Components, powered by OpenAPI and Markdown.
🎵 A simple, clean and cross-platform music player
A self-hosted platform to use HandBrake on your headless devices via a bespoke web interface. Harness the processing power of multiple devices to work on a single queue.
Cross-browser screenshot testing tool for Storybook with fancy UI Runner.
Compile-time i18n toolkit that requires zero code changes and produces the smallest possible bundles. Supports React, Svelte, SolidJS, Astro, and more
Invoicing for freelancers & small businesses
Ostara is a cross-platform desktop app for managing and monitoring Spring Boot applications using the Actuator API, providing comprehensive insights and effortless control.
Cross-platform desktop LLM client for OpenAI ChatGPT, DeepSeek R1, Anthropic Claude and more, with a focus on privacy and security.