Directory
5 open-source tools in Web & APIs.
AllAI & Coding AgentsDeveloper Tools & CLIWeb & APIsData & DatabasesDevOps & Self-HostedFiles & SyncSecurity & PrivacyProductivityNotes & KnowledgeCommunication & SocialAutomation & IoTFinance & BusinessScience & EducationCreator / Media
ReactCurated
Meta's JavaScript library for building user interfaces from reusable components.
FlutterCurated
Google's UI toolkit for building natively compiled apps for mobile, web, and desktop from one codebase.
Next.jsCurated
Vercel's React framework for production — full-stack rendering, routing, and built-in optimizations.
HoppscotchCurated
API development environment in the browser: REST, GraphQL, and realtime clients; self-hostable.
HTTPieCurated
User-friendly command-line HTTP client with JSON support and syntax highlighting.