Frameworks and libraries for building websites, apps and APIs.https://opensource.fyi/categories/web-frameworks/https://opensource.fyi/projects/hono/https://opensource.fyi/projects/hono/Hono is an open source web framework built on Web Standards. It runs on Cloudflare Workers, Deno, Bun, Node.js and other JavaScript runtimes.Tue, 10 Nov 2026 10:20:00 GMTtypescriptedgeapicloudflare-workershttps://opensource.fyi/projects/fastapi/https://opensource.fyi/projects/fastapi/FastAPI is an open source Python framework for building APIs. Standard type hints drive request validation, serialisation and automatic OpenAPI docs.Tue, 10 Nov 2026 10:10:00 GMTpythonapiasynchttps://opensource.fyi/projects/django/https://opensource.fyi/projects/django/Django is an open source Python web framework with an ORM, migrations, authentication, an automatic admin interface and strong security defaults.Tue, 10 Nov 2026 10:00:00 GMTpythonbackendormhttps://opensource.fyi/projects/nextjs/https://opensource.fyi/projects/nextjs/Next.js is an open source React framework for full-stack web apps, with file-based routing, server components, server rendering and static generation.Tue, 10 Nov 2026 09:50:00 GMTreactjavascriptssrhttps://opensource.fyi/projects/svelte/https://opensource.fyi/projects/svelte/Svelte is an open source UI framework that compiles components into efficient JavaScript at build time, with fine-grained reactivity and no virtual DOM.Tue, 10 Nov 2026 09:40:00 GMTjavascriptui-frameworkcompilerhttps://opensource.fyi/projects/astro/https://opensource.fyi/projects/astro/Astro is an open source web framework for content-driven sites. It renders to static HTML by default and ships JavaScript only for interactive islands.Tue, 10 Nov 2026 09:30:00 GMTstatic-site-generatorjavascriptislands