fibjs/fibjs

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

3098 stars · 302 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

fibjs is a JavaScript runtime built on Chrome's V8 engine that uses fiber-based coroutines with a synchronous, non-blocking IO model. It ships with a rich set of built-in C++ modules (HTTP server, databases, crypto, SSL, WebSocket, GUI) so developers can build high-performance web services without dealing with async callbacks.

Use cases

• build a high-performance web server in JavaScript without async callbacks
• run JavaScript with synchronous-style non-blocking IO
• write scalable backend services using fibers and coroutines
• use a JavaScript runtime with built-in database, Redis, and SQLite support
• develop web apps with an npm-compatible JavaScript runtime alternative to Node.js
• serve HTTPS with built-in SSL and X509 certificate handling

When to choose

• you prefer synchronous code style but need non-blocking IO performance
• you want batteries-included modules (HTTP, DB, crypto, WebSocket) without installing packages
• you need a lightweight, C++-core JavaScript runtime for server-side work

When to avoid

• you need the Node.js ecosystem's full library compatibility and tooling
• your team relies heavily on async/await patterns and modern Node APIs
• you need guaranteed permissive licensing (license is non-standard)

Facets

framework · maturity active

web-framework http-server concurrency cli database-driver caching websocket rpc testing web-development backend developer-tools programming-languages databases networking windows cross-platform cli javascript-runtime v8 fibers coroutines sync-style-io npm-compatible high-performance-server linux macos

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