Showing 235 open source projects for "backend"

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  • 1
    Stlite

    Stlite

    n-browser Streamlit

    Stlite is a WebAssembly-powered framework that enables Streamlit applications to run entirely in the browser without requiring a Python backend server. It achieves this by using Pyodide, a WebAssembly-based Python runtime, to execute Python code directly within the browser environment. This allows developers to build interactive data applications using familiar Streamlit APIs while eliminating the need for server-side infrastructure. Stlite supports a wide range of Python libraries and enables real-time interactivity, making it suitable for dashboards, data visualization tools, and educational applications. ...
    Downloads: 0 This Week
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  • 2
    AI PDF Chatbot LangChain

    AI PDF Chatbot LangChain

    AI PDF chatbot agent built with LangChain & LangGraph

    ...The project demonstrates how to combine LangChain and LangGraph with a vector database to enable retrieval-augmented question answering over user-provided files. It includes both frontend and backend components, making it suitable as a production starting point rather than just a minimal demo. The system parses uploaded PDFs into document chunks, generates embeddings, and stores them for semantic retrieval during chat interactions. It also supports real-time streaming responses and configurable LLM providers, giving developers flexibility in deployment. ...
    Downloads: 0 This Week
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  • 3
    Markdown Site

    Markdown Site

    An open-source publishing framework built for AI agents and developers

    ...The framework supports an efficient authoring experience via a simple terminal sync command that keeps content synchronized across connected browsers, AI tools, and discovery engines. By leveraging Convex for backend real-time data management and Netlify for static hosting, markdown-site enables rich publishing features like SEO optimization, full-text search, analytics dashboards, and AI-indexed content tailored to LLM workflows.
    Downloads: 0 This Week
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  • 4
    node-llama-cpp

    node-llama-cpp

    Run AI models locally on your machine with node.js bindings for llama

    ...By using native bindings and optimized model execution, the framework allows developers to integrate advanced language model capabilities into desktop applications, server software, and command-line tools. The system automatically detects the available hardware on a machine and selects the most appropriate compute backend, including CPU or GPU acceleration. Developers can use the library to perform tasks such as text generation, conversational chat, embedding generation, and structured output generation. Because it runs models locally, the platform is particularly useful for privacy-sensitive environments or offline AI deployments.
    Downloads: 24 This Week
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  • 5
    Nest.js Mod Fullstack

    Nest.js Mod Fullstack

    Boilerplate for creating a fullstack application on NestJS and Angular

    NestJS Fullstack is a boilerplate for building full-stack applications with NestJS and Angular, providing a ready-to-use structure for scalable apps.
    Downloads: 0 This Week
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  • 6
    freeCodeCamp

    freeCodeCamp

    freeCodeCamp.org's open-source codebase and curriculum

    ...The community includes discussion forums, local chapters, and peer support, which helps learners break through obstacles and stay motivated. The freeCodeCamp GitHub repository encompasses both the learning platform codebase (frontend, backend, challenge engine) and many support tools, community content, and contributions. Because it is open source, anyone can propose improvements, add lessons, or adapt the platform for new languages and frameworks.
    Downloads: 38 This Week
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  • 7
    Dyad

    Dyad

    Free, local, open-source AI app builder

    Dyad is a free, local, open source AI app builder that lets you go from idea to full-stack application entirely on your machine, no coding required, just chat with AI. You can build unlimited apps with real-time previews, instant undo, and responsive, frictionless workflows. Deep Supabase integration means you can create UI and backend logic in one cohesive environment, while the model-agnostic architecture lets you connect to any AI, whether cloud-based (Gemini 2.5 Pro, GPT-4.1, Claude Sonnet 4) or local via Ollama, so you’re never locked in. All source code remains on your device and integrates seamlessly with your preferred IDE. A natural-language API enables powerful data queries and updates, automating tasks without leaving the chat interface. ...
    Downloads: 22 This Week
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  • 8
    Fincept Terminal

    Fincept Terminal

    FinceptTerminal is a modern finance application

    ...The project provides both command-line and graphical interfaces that let users access real-time market data, economic indicators, and advanced analytics directly from a unified terminal environment, supporting stocks, forex, commodities, and more. Its architecture integrates Python, TypeScript, Rust, and React, reflecting both a robust data processing backend and a modern desktop UI experience. FinceptTerminal emphasizes AI-powered insights and automation, offering technical and fundamental analysis, sentiment data, and customizable workflows that help traders and analysts make informed decisions efficiently. The platform’s open-source nature encourages contributors to build new data connectors, analytics modules, and documentation.
    Downloads: 15 This Week
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  • 9
    Composer API

    Composer API

    OpenAI-compatible API proxy for Cursor Composer

    ...It is designed for developers who want to interact with Cursor’s Composer-style agent workflow through a familiar API surface. The project acts as a translation layer, letting compatible clients send requests in an OpenAI-like format while routing them toward the Composer backend behavior. This makes it useful for experimentation, automation, or tool integrations that already understand OpenAI-style chat completion patterns. Its scope appears focused and lightweight rather than being a broad AI gateway or multi-provider orchestration platform. Composer API is best suited for technical users who understand Cursor-related workflows and want a programmable bridge into that environment.
    Downloads: 10 This Week
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  • 10
    Medusa Next.js Starter Template

    Medusa Next.js Starter Template

    A performant frontend ecommerce starter template with Next.js

    Next.js Starter Medusa is an open-source starter template designed to help developers quickly build modern eCommerce storefronts using the Medusa headless commerce engine and the Next.js framework. The project provides a complete frontend architecture that connects to a Medusa backend, which handles core commerce logic such as products, carts, customers, and orders. By combining Medusa’s modular commerce APIs with the capabilities of Next.js, the template enables developers to build fast, scalable storefront applications while maintaining full flexibility over design and functionality. The template includes a preconfigured setup with technologies such as TypeScript and Tailwind CSS, allowing developers to customize styling and user experience while retaining a production-ready foundation. ...
    Downloads: 0 This Week
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  • 11
    SearChat

    SearChat

    Search + Chat = SearChat(AI Chat with Search)

    ...The project is designed to transform the process of web searching into a multi-turn conversational experience where users can refine queries and explore results through dialogue. Built using a modern monorepo architecture, the system includes a Node.js and Koa backend alongside a Vue 3 and TypeScript frontend that delivers a responsive chat interface. The platform supports multiple AI providers, allowing developers to connect models from providers such as OpenAI, Anthropic, or Google Gemini to generate contextual responses. It can integrate with several search engines including Bing, Google, and SearXNG to retrieve external information that the language model then analyzes and summarizes.
    Downloads: 0 This Week
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  • 12
    Modelence

    Modelence

    Modelence is an all-in-one TypeScript platform

    Modelence is an all-in-one TypeScript platform aimed at helping teams ship production web apps with far less boilerplate than a typical full-stack setup. It positions itself as a Supabase-style experience tailored toward MongoDB-centric development, bundling common backend needs like authentication, database integration, and observability into a cohesive framework. The project is built to support modern application workflows where product teams want to move quickly without stitching together many separate services and libraries. It includes scaffolding and tooling to create a new application quickly, then run a local development server with a predictable structure that’s easy to extend. ...
    Downloads: 0 This Week
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  • 13
    PocketMocker

    PocketMocker

    In-page HTTP controller for frontend development

    PocketMocker is an in-page HTTP controller and mocking tool for frontend developers that lets you intercept, modify, or simulate API responses directly in a web application without requiring backend changes or separate mock servers. Running inside the browser, it provides a floating control panel that automatically captures outgoing requests and allows developers to override responses, simulate errors or latency, or test edge cases on the fly. This makes building, debugging, and verifying user interfaces significantly faster because developers can instantly see how their UI reacts to different API conditions without switching contexts. ...
    Downloads: 0 This Week
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  • 14
    Telegram Web A

    Telegram Web A

    Telegram Web A, GPL v3

    ...It uses a custom front-end framework (called “Teact”) that re-implements React-style paradigms and pairs them with a custom version of the MTProto library (based on GramJS) to interact with Telegram’s backend infrastructure. The project achieved recognition (winning first prize in the Telegram Lightweight Client Contest) and serves as the code base behind the official web client available at web.telegram.org/a. The architecture takes advantage of advanced browser capabilities: WebSockets for real-time messaging, Web Workers and WebAssembly for performance-critical tasks, multi-level caching and PWA features for offline or near-offline usability, voice recording and media streaming, raw binary data handling and cryptographic operations. ...
    Downloads: 31 This Week
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  • 15
    pandora-box

    pandora-box

    Lightweight cross-platform desktop client for managing Mihomo proxies

    ...Pandora-Box focuses on delivering a clean interface with practical features for importing, managing, and converting proxy subscriptions. Pandora-Box combines a desktop interface with backend components to create a functional proxy management environment that simplifies complex networking configurations.
    Downloads: 22 This Week
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  • 16
    Dinero.js

    Dinero.js

    Create, calculate, and format money in JavaScript and TypeScript

    ...Dinero.js supports complex financial operations such as comparisons, allocations, and conversions, enabling developers to build robust financial systems with confidence. Its functional architecture and modular design make it highly adaptable and efficient, particularly in modern frontend and backend environments.
    Downloads: 8 This Week
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  • 17
    Berd

    Berd

    A desktop app for getting work done with any model

    Berd is an open-source desktop workspace for working with AI agents on real projects. It is built with Tauri and React and connects to the Goose backend through the Agent Client Protocol. Users can chat with agents, attach files or folders, choose models, and organize work inside projects. It also supports skills, extensions, automations, and provider configuration. Session history helps keep longer-running work continuous and inspectable. The project is designed for engineers, designers, and other builders who want a persistent AI companion with access to local workspace context.
    Downloads: 5 This Week
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  • 18
    OmniTools

    OmniTools

    Self-hosted collection of powerful web-based tools for everyday tasks

    ...It’s designed to replace the random assortment of “free online tools” people use for quick tasks, while avoiding ads, tracking, and the need to upload sensitive files to unknown servers. A key design choice is that file processing happens entirely on the client side, meaning your data stays in your browser instead of being sent to the backend. The tool catalog spans both technical and non-technical needs, including image, video, audio, PDF, text, date/time, math, and data format utilities like JSON/CSV/XML helpers. It’s also packaged for straightforward self-hosting, with a lightweight Docker image and simple run commands, so it can be deployed quickly on a homelab or internal network.
    Downloads: 16 This Week
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  • 19
    Brim

    Brim

    Application to efficiently search and analyze super-structured data

    Desktop application to efficiently search and analyze super-structured data. Powered by Zed. Zed is a system that makes data easier by utilizing our new super-structured data model. Brim is a desktop app to explore, query, and shape the data in your super-structured data lake. Brim is an open source desktop application for security and network specialists. Brim makes it easy to search and analyze data from packet captures, like those created by Wireshark, and structured logs, especially from...
    Downloads: 21 This Week
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  • 20
    Coze Studio

    Coze Studio

    An AI agent development platform with all-in-one visual tools

    ...It offers no-code/low-code workflows to build, debug, and deploy conversational agents, integrating prompting, RAG-based knowledge bases, plugin systems, and workflow orchestration. Developed in Go (backend) and React/TypeScript (frontend), it uses a containerized microservices architecture suitable for enterprise deployment.
    Downloads: 6 This Week
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  • 21
    Nestia

    Nestia

    NestJS Helper + AI Chatbot Development

    Nestia is a high-performance toolkit and ecosystem built on top of NestJS that enhances backend development by introducing strongly typed APIs, automated SDK generation, and advanced tooling for scalable server applications. It is designed to eliminate much of the boilerplate typically associated with API development by leveraging pure TypeScript types to automatically generate validation logic, API documentation, and client SDKs.
    Downloads: 7 This Week
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  • 22
    React Native AI

    React Native AI

    Full stack framework for building cross-platform mobile AI apps

    ...It supports real-time streaming responses from multiple AI providers and enables developers to build chat interfaces, AI-driven image generation tools, and natural language features within mobile apps. The framework includes backend components such as an Express-based server proxy that handles authentication and API communication with model providers. Developers can also integrate multiple models and services through a unified interface, making it easier to experiment with different AI capabilities. Built-in theming and UI templates allow developers to quickly create polished interfaces for AI chat and generative features.
    Downloads: 0 This Week
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  • 23
    Farfalle

    Farfalle

    AI search engine - self-host with local or cloud LLMs

    ...It can run either with local language models or with cloud-based providers, allowing developers to deploy it privately or integrate with hosted AI services. The architecture separates the frontend and backend, using modern web technologies such as Next.js and FastAPI to deliver an interactive interface and scalable server logic. Farfalle also includes an agent-based search workflow that plans queries and executes multiple search steps to produce more accurate results than traditional keyword searches. The system supports multiple external search providers and integrates caching and rate-limiting mechanisms to maintain reliability during heavy usage.
    Downloads: 0 This Week
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  • 24
    OpenAI CS Agents Demo

    OpenAI CS Agents Demo

    Demo of a customer service use case implemented with the OpenAI Agents

    This repository is a customer service agent demo built using the OpenAI Agents SDK to showcase how to build a production-style conversational assistant for use cases like airline customer support. It consists of two major parts: a Python backend that orchestrates agent logic (tool calls, handoffs, memory, routing) and a Next.js UI for chat interaction and visualizing agent state. The demo covers tasks you’d expect in customer service: changing flights, checking status, answering FAQs, etc. It shows how multiple subagents can be coordinated under a triage agent that decides which specialized agent should handle a given request. ...
    Downloads: 0 This Week
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  • 25
    OpenAI Realtime Agents

    OpenAI Realtime Agents

    This is a simple demonstration of more advanced, agentic patterns

    ...The SDK offers abstractions such as agent orchestration, event handling, handoffs, state management, and guardrails, tailored to support realtime, conversational systems. The demo includes a Next.js frontend for browser interaction and likely a backend component to orchestrate realtime sessions and agent logic. It also supports a “Chat-Supervisor” pattern where a lightweight realtime chat agent handles user interactions and delegates more complex reasoning or tool usage to a stronger textual model (e.g. GPT-4). Because realtime agents are still a beta feature, the code and API surface are subject to changes and may evolve.
    Downloads: 0 This Week
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