Showing 293 open source projects for "backend"

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  • 1
    ntfy

    ntfy

    Utility for sending notifications, on demand and when commands finish

    ...It can be installed in a virtualenv, but with some caveats, Linux notifications require system-site-packages for the virtualenv and OS X notifications don’t work at all. ntfy has support for automatically sending notifications when long-running commands finish in bash and zsh. In bash it emulates zsh’s preexec and precmd functionality with rcaloras/bash-preexec. The backends key specifies what backends to use by default. Each backend has its own configuration, stored in a key of its own name. If you want multiple configs for the same backend type, you can specify any name and then specify the backend with a backend key.
    Downloads: 10 This Week
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  • 2
    ComfyUI

    ComfyUI

    The most powerful and modular diffusion model GUI, api and backend

    The most powerful and modular diffusion model is GUI and backend. This UI will let you design and execute advanced stable diffusion pipelines using a graph/nodes/flowchart-based interface. We are a team dedicated to iterating and improving ComfyUI, supporting the ComfyUI ecosystem with tools like node manager, node registry, cli, automated testing, and public documentation. Open source AI models will win in the long run against closed models and we are only at the beginning.
    Downloads: 698 This Week
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  • 3
    Writer Framework

    Writer Framework

    No-code in the front, Python in the back. An open-source framework

    ...Its architecture enforces a clear separation of concerns between frontend and backend, which improves maintainability and scalability as applications grow in complexity. The system is designed to support rapid prototyping, enabling developers to iterate on UI and backend logic independently and deploy changes quickly.
    Downloads: 6 This Week
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  • 4
    Selectolax

    Selectolax

    Python binding to Modest and Lexbor engines

    A fast HTML5 parser with CSS selectors using Modest and Lexbor engines. Selectolax supports two backends: Modest and Lexbor. By default, all examples use the Modest backend. Most of the features between backends are almost identical, but there are still some differences. Currently, the Lexbor backend is in beta and missing some of the features. To use lexbor, just import the parser and use it in the similar way to the HTMLParser.
    Downloads: 3 This Week
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  • 5
    BackAnt CLI

    BackAnt CLI

    Let your AI agent create clean, easy to maintain flask backends

    BackAnt CLI is an AI-native backend scaffolding tool designed to generate production-ready Flask APIs from a JSON specification or a small set of CLI commands. Its main goal is to reduce the repetitive work involved in setting up layered backend projects by generating key application components automatically rather than forcing developers to assemble them by hand.
    Downloads: 3 This Week
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  • 6
    Full Stack FastAPI and PostgreSQL

    Full Stack FastAPI and PostgreSQL

    Full stack, modern web application generator

    ...Many other features including automatic validation, serialization, interactive documentation, authentication with OAuth2 JWT tokens, etc. Celery worker that can import and use models and code from the rest of the backend selectively. REST backend tests based on Pytest, integrated with Docker, so you can test the full API interaction, independent on the database. As it runs in Docker, it can build a new data store from scratch each time.
    Downloads: 6 This Week
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  • 7
    Gemini Fullstack LangGraph Quickstart

    Gemini Fullstack LangGraph Quickstart

    Get started w/ building Fullstack Agents using Gemini 2.5 & LangGraph

    gemini-fullstack-langgraph-quickstart is a fullstack reference application from Google DeepMind’s Gemini team that demonstrates how to build a research-augmented conversational AI system using LangGraph and Google Gemini models. The project features a React (Vite) frontend and a LangGraph/FastAPI backend designed to work together seamlessly for real-time research and reasoning tasks. The backend agent dynamically generates search queries based on user input, retrieves information via the Google Search API, and performs reflective reasoning to identify knowledge gaps. It then iteratively refines its search until it produces a comprehensive, well-cited answer synthesized by the Gemini model. ...
    Downloads: 4 This Week
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  • 8
    ReClip

    ReClip

    Download videos from almost any website

    ...The application emphasizes simplicity and minimalism, featuring a clean interface built with plain HTML, CSS, and JavaScript without requiring complex build steps or frameworks. Its backend is implemented in a compact Python Flask application, making it easy to deploy and customize. Users can paste multiple URLs at once, select output formats such as MP4 or MP3, and choose quality settings before downloading. The system also includes features like automatic URL deduplication and batch processing to improve usability.
    Downloads: 52 This Week
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  • 9
    paqctl

    paqctl

    Unified proxy manager for bypassing firewalls

    ...The tool supports two different approaches: Paqet, which uses KCP over raw sockets for simpler cases, and GFW-Knocker, which combines TCP and QUIC tunneling for heavier censorship scenarios. It provides guided installation, configuration, service management, status checks, and backup-oriented dual-backend operation. The project focuses on making complex proxy infrastructure easier to install and operate from a single shell-based interface. It is best understood as an automation layer for users who already need managed proxy connectivity between a local machine and a remote server.
    Downloads: 2 This Week
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  • 10
    Mitiq

    Mitiq

    Mitiq is an open source toolkit for implementing error mitigation

    Mitiq is a Python toolkit for implementing error mitigation techniques on quantum computers. Current quantum computers are noisy due to interactions with the environment, imperfect gate applications, state preparation and measurement errors, etc. Error mitigation seeks to reduce these effects at the software level by compiling quantum programs in clever ways.
    Downloads: 10 This Week
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  • 11
    QualityScaler

    QualityScaler

    Image/video AI upscaler app (BSRGAN)

    Qualityscaler is a Windows app that uses BSRGAN Artificial Intelligence to enhance, enlarge and reduce noise in photographs and videos. QualityScaler is completely written in Python, from the backend to the front end. Image/list of images upscale. Video upscale. Drag&drop files [image / multiple images/video] Automatic image tiling and merging to avoid gpu VRAM limitation. Resize image/video before upscaling. Multiple Gpu support. Compatible images - png, jpeg, bmp, webp, tif. Compatible video - mp4, wemb, gif, mkv, flv, avi, mov, qt.
    Downloads: 249 This Week
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  • 12
    python-for-android

    python-for-android

    Turn your Python application into an Android APK

    ...This tool was originally developed for the Kivy cross-platform graphical framework, but now supports multiple bootstraps and can be easily extended to package other types of Python apps for Android. python-for-android supports two major operations; first, it can compile the Python interpreter, its dependencies, backend libraries and python code for Android devices. This stage is fully customisable: you can install as many or few components as you like. The result is a standalone Android project which can be used to generate any number of different APKs, even with different names, icons, Python code etc. The second function of python-for-android is to provide a simple interface to these distributions.
    Downloads: 26 This Week
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  • 13
    Tequila

    Tequila

    A High-Level Abstraction Framework for Quantum Algorithms

    Tequila is an abstraction framework for (variational) quantum algorithms. It operates on abstract data structures allowing the formulation, combination, automatic differentiation and optimization of generalized objectives. Tequila can execute the underlying quantum expectation values on state-of-the-art simulators as well as on real quantum devices.
    Downloads: 1 This Week
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  • 14
    Cryptocurrency Exchange Feed Handler

    Cryptocurrency Exchange Feed Handler

    Cryptocurrency Exchange Websocket data feed handler

    ...Cryptofeed also provides a synthetic NBBO (National Best Bid/Offer) feed that aggregates the best bids and asks from the user specified feeds. Cryptofeed supports backend callbacks that will write directly to storage or other interfaces. Cryptofeed can be installed from PyPi. (It's recommended that you install in a virtual environment of your choosing).
    Downloads: 11 This Week
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  • 15
    QuantDinger

    QuantDinger

    AI-driven, local-first quantitative trading platform for research

    QuantDinger is a local-first, open-source quantitative trading platform designed to bring AI-assisted analysis, strategy development, backtesting, and live execution into a self-hosted workspace where data and API credentials remain under your control. Unlike cloud-locked quant services, it lets users run the entire trading workflow on their own infrastructure using Docker, with a PostgreSQL database backend, a Python backend API, and a web frontend UI that supports visualization and strategy management. Traders and researchers can develop custom strategies in Python, run historical backtests, analyze performance, and connect to supported exchanges for live trading, making it suitable for equities, crypto, forex, and futures markets in a local environment. ...
    Downloads: 10 This Week
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  • 16
    Numba CUDA Target

    Numba CUDA Target

    The CUDA target for Numba

    Numba CUDA Target is NVIDIA’s maintained CUDA backend for the Numba JIT compiler, enabling developers to write GPU-accelerated code directly in Python. It allows users to define CUDA kernels using Python syntax, which are then compiled into efficient GPU code at runtime using LLVM-based toolchains. This approach significantly lowers the barrier to entry for GPU programming by eliminating the need to write CUDA C++ while still delivering high performance.
    Downloads: 7 This Week
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  • 17
    GQL

    GQL

    A GraphQL client in Python

    ...Under the hood, it uses GraphQL-core which is a Python port of GraphQL.js, the JavaScript reference implementation for GraphQL. GQL supports multiple transports to communicate with the backend. Each transport can necessitate specific dependencies. If you only need one transport you might want to install only the dependency needed for your transport, instead of using the “all” extra dependency as described above, which installs everything.
    Downloads: 7 This Week
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  • 18
    TFX

    TFX

    TFX is an end-to-end platform for deploying production ML pipelines

    ...TFX pipelines can be orchestrated using Apache Airflow and Kubeflow Pipelines. Both the components themselves and the integrations with orchestration systems can be extended. TFX components interact with an ML Metadata backend that keeps a record of component runs, input and output artifacts, and runtime configuration. This metadata backend enables advanced functionality like experiment tracking or warm starting/resuming ML models from previous runs.
    Downloads: 1 This Week
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  • 19
    Google Workspace MCP Server

    Google Workspace MCP Server

    Control Gmail, Google Calendar, Docs, Sheets, Slides, Chat, Forms

    ...By acting as a bridge between AI clients and the Google ecosystem, the server enables automated workflows such as searching emails, creating calendar events, retrieving documents, or editing files without leaving the AI environment. The system is designed to operate as a backend service that integrates with AI applications such as coding agents, automation tools, and conversational assistants. Authentication is handled through OAuth-based flows that allow both single-user and multi-user environments while maintaining access control over Workspace data.
    Downloads: 10 This Week
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  • 20
    tvm

    tvm

    Open deep learning compiler stack for cpu, gpu, etc.

    Apache TVM is an open source machine learning compiler framework for CPUs, GPUs, and machine learning accelerators. It aims to enable machine learning engineers to optimize and run computations efficiently on any hardware backend. The vision of the Apache TVM Project is to host a diverse community of experts and practitioners in machine learning, compilers, and systems architecture to build an accessible, extensible, and automated open-source framework that optimizes current and emerging machine learning models for any hardware platform. Compilation of deep learning models in Keras, MXNet, PyTorch, Tensorflow, CoreML, DarkNet and more. ...
    Downloads: 6 This Week
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  • 21
    Flet

    Flet

    Flet enables developers to easily build realtime web and mobile apps

    ...An internal tool or a dashboard for your team, weekend project, data entry form, kiosk app or high-fidelity prototype - Flet is an ideal framework to quickly hack great-looking interactive apps to serve a group of users. No more complex architecture with JavaScript frontend, REST API backend, database, cache, etc. With Flet you just write a monolith stateful app in Python only and get a multi-user, real-time Single-Page Application (SPA). To start developing with Flet, you just need your favorite IDE or text editor. With no SDKs, no thousands of dependencies, no complex tooling, Flet has a built-in web server with assets hosting and desktop clients.
    Downloads: 103 This Week
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  • 22
    Memobase

    Memobase

    Fast backend for long-term AI user memory via structured profiles

    Memobase is an open source backend system that enables long-term user memory functionality for AI applications by capturing and structuring information about users across interactions. Its design centers on creating user profiles and recording event timelines, allowing AI systems to remember, understand, and evolve in their behaviour toward individual users over time.
    Downloads: 8 This Week
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  • 23
    Restaurant Management System

    Restaurant Management System

    Restaurant Management System written in Python using Tkinter

    ...Storing the restaurant configuration: configure facility name, table/seat counts, and menu with the ability to modify them in the future. Users will have the ability to modify the data through the “Configure Facility/Menu” section of the app. Create bills for the chef (backend): The application will first send the order to the kitchen for cooks to see, prepare, and fulfill the order.
    Downloads: 3 This Week
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  • 24
    Flask-Limiter

    Flask-Limiter

    Rate Limiting extension for Flask

    ...By adding the extension to your flask application, you can configure various rate limits at different levels (e.g. application wide, per Blueprint, routes, resource etc). To include extra dependencies for a specific storage backend you can add the specific backend name via the extras notation.
    Downloads: 3 This Week
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  • 25
    tldw Server

    tldw Server

    Your Personal Research Multi-Tool

    tldw-server (mirror) is a mirrored distribution of an open-source backend service designed to store, process, and serve summarized information extracted from long pieces of content. The name “tldw” reflects the phrase “too long; didn’t watch,” which refers to tools that condense lengthy videos, articles, or documents into concise summaries. The server component typically acts as the core infrastructure that manages summaries, metadata, and retrieval operations for client applications or user interfaces. ...
    Downloads: 4 This Week
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