The most advanced responsive front-end framework in the world.

Foundation is the most advanced responsive front-end framework in the world. Quickly go from prototype to production, building sites or apps that work on any kind of device with Foundation. Includes a fully customizable, responsive grid, a large library of Sass mixins, commonly used JavaScript plugins, and full accessibility support.

• Foundation for Sites @ GitHub.

A lightweight Java and Kotlin web framework.

Javalin is a very lightweight web framework for Kotlin and Java which supports WebSockets, HTTP2 and async requests. Javalin’s main goals are simplicity, a great developer experience, and first class interoperability between Kotlin and Java.

• Javalin @ GitHub.

Modular building blocks for building collaborative applications like Google Docs and Figma.

Yjs is a shared editing framework. It exposes Shared Types that can be manipulated like any other data type. But they are synced automatically!

• Yjs Docs.
• Yjs @ GitHub.

Related contents:

• Learn Yjs.

Standards first web framework.
Nue is HTML, CSS, and JavaScript taken to their absolute peak.

• Nue @ GitHub.

Related contents:

• A standards first web framework @ Nue blog.

Concurrent Python made simple.

Pyper is a flexible framework for concurrent and parallel data-processing, based on functional programming patterns. Used for ETL Systems, Data Microservices, and Data Collection

Open-Source Evaluation & Testing for AI & LLM systems.

The testing framework dedicated to ML models, from tabular to LLMs.
Control risks of performance, bias and security issues in AI systems.

• Giskard @ GitHub.

Build context-aware reasoning applications

LangChain is a framework for developing applications powered by large language models (LLMs).

• 🦜️ LangChain @ GitHub.

Productivity-first Rust Fullstack Web Framework.
The one-person framework for Rust for side-projects and startups

Loco is strongly inspired by Rails. If you know Rails and Rust, you'll feel at home. If you only know Rails and new to Rust, you'll find Loco refreshing. We do not assume you know Rails.

• Loco @ GitHub.

the reactive framework.

Skip is an open-source framework for building reactive backend services.

It is based on a custom-built native backend for efficient reactive computation, allowing your system to deliver up-to-date and correct results without requiring any bug-prone manual dependency tracking and updating.

TypeScript interfaces and abstractions are provided so that you can write a reactive service using standard tools while also taking advantage of the Skip framework's abstractions for efficient reactivity.

• Skip @ GitHub.

Peace of mind from prototype to production

Build rich, interactive web applications quickly, with less code and fewer moving parts. Join our growing community of developers using Phoenix to craft APIs, HTML5 apps and more, for fun or at scale.

• Phoenix Framework @ GitHub.

Insanely fast native C++, Swift or Kotlin modules with a statically compiled binding layer to JSI.

A framework to build mindblowingly fast native modules with type-safe statically compiled JS bindings.

• Nitro Modules @ GitHub.

A Framework for Modern CLI Apps in Go.
A Commander for modern Go CLI interactions.

Cobra is a library for creating powerful modern CLI applications.

• Cobra @ GitHub.
• A Primer on Cobra.

Power Your AI with Live Data.

Python ETL framework for stream processing, real-time analytics, LLM pipelines, and RAG.

• Pathway @ GitHub.

Surfer Protocol is an open-source framework that allows you to export your personal data from various platforms.

Your personal data is siloed across many platforms and apps. Big tech companies have no incentive to give you easy access to your own data. Whether you want to make an AI clone that texts like you, reclaim your data from big tech, or leave a digital legacy, Surfer Protocol is the way to do it.

Currently, Surfer Protocol consists of a Python SDK and a Desktop App. The Desktop App is used for exporting your data from your favorite apps and services. The Python SDK is used for building applications off of your personal data.

• Surfer Protocol @ GitHub.

A web browser for AI agents & applications.
An AI web browsing framework focused on simplicity and extensibility.

• Stagehand @ GitHub.

Data Runs Better on SDF. Transform Data Better with SDF.
SDF is the fastest way to build a scalable, reliable, and optimized data warehouse.

SDF is a developer platform for data that scales SQL understanding across an organization, empowering all data teams to unlock the full potential of their data.

SDF is a multi-dialect SQL compiler, transformation framework, and analytical database engine. It natively compiles SQL dialects, like Snowflake, and connects to their corresponding data warehouses to materialize models.

• SDF Docs.
• SDF @ GitHub.

Source: Testing is Not Enough: Transforming Data Quality with Write, Audit, Publish using SDF Build @ SDF Blog.

A community-maintained Python framework for creating mathematical animations.

Manim is an animation engine for explanatory math videos.

• Manim @ GitHub.

Agent Framework / shim to use Pydantic with LLMs.

PydanticAI is a Python Agent Framework designed to make it less painful to build production grade applications with Generative AI.

• PydanticAI @ GitHub.

Related contents:

• PydanticAI: A New Python Framework for Streamlined Generative AI Development @ InfoQ.

ThinkPHP Framework

• ThinkPHP @ GitHub.

darkman is a framework for dark-mode and light-mode transitions on UNIX
desktops.
It runs in the background and turns on dark mode at sundown, and turns it off
again at sunrise.
It's designed to run in the background.

• darkman @ GitLab.