Browse free open source Frameworks and projects below. Use the toggles on the left to filter open source Frameworks by OS, license, language, programming language, and project status.

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  • 1
    Bootstrap

    Bootstrap

    HTML, CSS and JS framework for developing responsive websites and apps

    Bootstrap is an HTML, CSS, and JS framework designed for developing responsive, mobile first projects on the web. It's one of the most popular front-end frameworks and for good reason: it simply makes web development faster and easier. People of all skill levels can create projects of all sizes with Bootstrap, and for all types of devices too. With Bootstrap, you get a host of nifty features such as precompiled CSS, impressive scalability, dozens of custom HTML and CSS components and more.
    Downloads: 39 This Week
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  • 2
    tabler

    tabler

    Tabler is free and open-source HTML Dashboard UI Kit

    Tabler is fully responsive and compatible with all modern browsers. Thanks to its modern, user-friendly design you can create a fully functional interface that users will love! Choose the layouts and components you need and customize them to make your design consistent and eye-catching. Every component has been created with attention to detail to make your interface beautiful! We've created this admin panel for everyone who wants to create templates based on our pre-made components. Our mission is to deliver a user-friendly, clear and easy administration panel that can be used by both simple websites and sophisticated systems. The only requirement is basic HTML and CSS (and some Liquid) knowledge, as a reward, you'll be able to manage and visualise different types of data in the easiest possible way! With the support for mobile, tablet and desktop displays, it doesn’t matter what device you’re using. Tabler is responsive in all major browsers.
    Downloads: 27 This Week
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  • 3
    Grassroots DICOM

    Grassroots DICOM

    Cross-platform DICOM implementation

    Grassroots DiCoM is a C++ library for DICOM medical files. It is accessible from Python, C#, Java and PHP. It supports RAW, JPEG, JPEG 2000, JPEG-LS, RLE and deflated transfer syntax. It comes with a super fast scanner implementation to quickly scan hundreds of DICOM files. It supports SCU network operations (C-ECHO, C-FIND, C-STORE, C-MOVE). PS 3.3 & 3.6 are distributed as XML files. It also provides PS 3.15 certificates and password based mecanism to anonymize and de-identify DICOM datasets.
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    Downloads: 78 This Week
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  • 4

    QuaZIP

    A C++/Qt ZIP library

    Moved to GitHub: https://github.com/stachenov/quazip
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    Downloads: 49 This Week
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    gRPC

    gRPC

    High performance, open source universal RPC framework

    gRPC is a C-based high performance remote procedure call (RPC) framework that can run in any environment. It efficiently connects services in and across data centers with plenty of support, and can also connect mobile devices and browser clients to backend services. Essentially, it makes it easier for you to create distributed applications and services.
    Downloads: 6 This Week
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  • 6

    Okapi Framework (Old .NET version)

    See http://okapi.opentag.com/ for LATES VERSION of the Okapi Framework

    THIS VERSION ON SOURCEFORGE IS NO LONGER SUPPORTED and works only on Windows. The Okapi Framework is a set of components and tools for localization and translation tasks. THE NEWEST JAVA-BASED VERSION OF OKAPI IS AVAILABLE AT: http://okapi.opentag.com/ The new version runs on Windows, Mac, Linux, etc.
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    Downloads: 28 This Week
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  • 7
    7.css

    7.css

    A JS-independent, tree-shakeable CSS framework

    7.css is a CSS framework for building interface components that look like Windows 7. It is built on top of the GUI backbone of XP.css, which is an extension of 98.css. This framework relies on the usage of semantic HTML. To make a button, you'll need to use a button. Input elements require labels. Tabs rely on the role="tab" attribute. This page will guide you through that process, but accessibility is a primary goal of this project. It does not ship with any JavaScript, so it is compatible with your frontend framework of choice.
    Downloads: 3 This Week
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  • 8
    layui

    layui

    Classic modular front-end UI framework

    Created by professional front-end, for full-level front-end and back-end developers, a low-threshold, out-of-the-box front-end UI solution. Layui (homonym: UI-like) is a front-end UI framework written with its own module specifications, following the writing and organization of native HTML/CSS/JS, with a very low threshold and ready to use. Its exterior is minimalist, but it does not lose its fullness. The volume is light and the components are abundant. Every detail from the core code to the API has been carefully crafted, which is very suitable for the rapid development of the interface. The first version of layui was released in the golden autumn of 2016. It is different from those UI frameworks based on the underlying MVVM.
    Downloads: 3 This Week
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  • 9
    Connexion

    Connexion

    Swagger/OpenAPI First framework for Python on top of Flask

    Connexion is a framework on top of Flask that automagically handles HTTP requests defined using OpenAPI (formerly known as Swagger), supporting both v2.0 and v3.0 of the specification. Connexion allows you to write these specifications, then maps the endpoints to your Python functions. This is what makes it unique from other tools that generate the specification based on your Python code. You are free to describe your REST API with as much detail as you want and then Connexion guarantees that it will work as you specified. We built Connexion this way in order to simplify the development process. Reduce misinterpretation about what an API is going to look like. With Connexion, you write the spec first. Connexion then calls your Python code, handling the mapping from the specification to the code. This incentivizes you to write the specification so that all of your developers can understand what your API does, even before you write a single line of code.
    Downloads: 2 This Week
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    Enterprise-grade ITSM, for every business

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  • 10
    jwx

    jwx

    Implementation of various JWx (Javascript Object Signing

    Go module implementing various JWx (JWA/JWE/JWK/JWS/JWT, otherwise known as JOSE) technologies. If you are using this module in your product or your company, please add your product and/or company name in the Wiki! It really helps keeping up our motivation. Complete coverage of JWA/JWE/JWK/JWS/JWT, not just JWT+minimum tool set. Supports JWS messages with multiple signatures, both compact and JSON serialization. Supports JWS with detached payload. Supports JWS with unencoded payload (RFC7797). Supports JWE messages with multiple recipients, both compact and JSON serialization. Most operations work with either JWK or raw keys e.g. *rsa.PrivateKey, *ecdsa.PrivateKey, etc). Opinionated, but very uniform API. Everything is symmetric, and follows a standard convention. Arguments are organized as explicit required paramters and optional WithXXXX() style options.
    Downloads: 2 This Week
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  • 11
    sakura

    sakura

    A minimal CSS framework/theme

    Just drop in sakura.css to any webpage and go from ugly looking 1900s website to a pretty modern website in literally 0 seconds. Easy to customize and build on top of sakura. Sakura supports extremely easy theming support using variables for duotone color scheming. Comes with several existing themes, and can be found in the CSS folder of this repository. Don't want to develop using sakura, but instead want to use it on websites with outdated 90's design (i.e. no CSS)? Quick prototyping, especially when working on backend sites and can't yet be bothered to fidget with CSS/HTML. Building a quick (but pretty) site/blog for your best friend or aunt! No need to remember tons of different class names for every other CSS framework. Works amazingly with markdown generated HTML pages (eliminates the need of hacks like including .img img-responsive in markdown-parser generated <img></img> tags).
    Downloads: 2 This Week
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  • 12
    Prowide Core

    Prowide Core

    Java framework for SWIFT [tm] MT (FIN) messaging

    Prowide Core (previously known as WIFE) is an open source Java framework for managing SWIFT MT messages. The library key features are the comprehensive Java model for all MT message types, along a straight-forward parsing and building API. The project is active since 2006, production ready and commercially supported. For detail information on the support package options please check: https://www.prowidesoftware.com/services SWIFT is a trademark of S.W.I.F.T. SCRL. (www.swift.com) Prowide in GitHub: https://github.com/prowide
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    Downloads: 11 This Week
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  • 13
    A software toolkit for using the EPCglobal Low Level Reader Protocol (LLRP) to communicate with conforming RFID readers.
    Downloads: 20 This Week
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  • 14
    Gatsby

    Gatsby

    Build blazing fast, modern apps and websites with React

    Gatsby is a free and open source web framework based on React that allows you to build blazing fast websites and apps. It offers the latest web technologies, such as React.js, Webpack, modern JavaScript, CSS and more to help you build really fast websites. A Progressive Web App generator, it’s fast in every way that matters.
    Downloads: 1 This Week
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  • 15
    Halfmoon

    Halfmoon

    Front-end framework with a built-in dark mode

    Front-end framework with a built-in dark mode and full customizability using CSS variables; great for building dashboards and tools. Halfmoon is a responsive front-end framework that is great for building dashboards and tools. Built-in dark mode, full customizability using CSS variables (around 1,500 variables), optional JavaScript library (no jQuery), Bootstrap-like classes, and cross-browser compatibility (including IE11). Halfmoon comes with a built-in, toggleable dark mode, which is one of its most important and defining features. The framework is built entirely using CSS variables (also known as CSS custom properties). There are close to 1,500 CSS variables, which means that almost everything can be customized by overriding a property, making it very easy to theme Halfmoon to fit your brand. Learn more about customization. The components have a very standard look and feel to them, making them suitable for dashboards and tools.
    Downloads: 1 This Week
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  • 16
    Laravel Blade X

    Laravel Blade X

    Use custom HTML components in your Blade views

    Supercharged Blade Components. This package provides an easy way to render custom HTML components in your Blade views.
    Downloads: 1 This Week
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  • 17
    Pico.css

    Pico.css

    Minimal CSS Framework for semantic HTML

    Minimal CSS Framework for semantic HTML. Elegant styles for all native HTML elements without .classes and dark mode automatically enabled. Pico uses simple native HTML tags as much as possible. Less than 10 .classes are used in Pico. No dependencies, package manager, external files, or JavaScript. Elegant and consistent adaptive spacings and typography on all devices. Shipped with two beautiful color themes, automatically enabled according to the user preference. We use simple native HTML tags as much as possible. Less than 10 .classes are used in Pico. No dependencies, package manager, external files, or JavaScript. Elegant and consistent adaptive spacings and typography on all devices. Shipped with two beautiful color themes, automatically enabled according to the user preference. A classic company or blog layout with a sidebar. A simple layout for Google Amp, with inlined CSS.
    Downloads: 1 This Week
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  • 18
    RuoYi

    RuoYi

    The warehouse's SpringBoot-based rights management system

    The warehouse's SpringBoot-based rights management system is easy to read and understand, and the interface is simple and beautiful. The core technology uses Spring, MyBatis, and Shiro without any other heavy dependencies. I have always wanted to make a background management system, and I have seen many excellent open source projects but found no suitable ones. So I started to write a background system in my spare time. So there is Zoe. She can be used for all web applications, such as website management background, website member center, CMS, CRM, OA. All front-end and back-end codes are very compact and easy to use after encapsulation, and the probability of errors is low. Also supports mobile client access. The system will continue to update some useful functions. The user is the system operator, and this function mainly completes the system user configuration. Configure the system organization (company, department, group).
    Downloads: 1 This Week
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  • 19
    Twirp

    Twirp

    A simple RPC framework with protobuf service definitions

    Twirp is a simple RPC framework built on protobuf. You define a service in a .proto specification file, then Twirp will generate servers and clients for that service. It's your job to fill in the "business logic" that powers the server, and then generated clients can consume your service straight away. Twirp routing and serialization reduces the risk of introducing bugs. Both JSON and Protobuf are supported. The Protobuf protocol is designed to allow backwards compatible changes (unlike JSON, it is trivial to rename fields). Protobuf is super fast and the proto file definition also works well as documentation for your service. Twirp is similar to gRPC, but without the custom HTTP server and transport implementations: it runs on the standard library's extremely-well-tested-and-high-performance net/http Server. It can run on HTTP 1.1, not just http/2, and supports JSON serialization for easy debugging.
    Downloads: 1 This Week
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  • 20
    Vanilla Framework

    Vanilla Framework

    From community websites to web applications, this CSS framework

    Backed by open-source code and written in Sass by the Canonical Web Team. Vanilla contains a responsive CSS grid, basic style for HTML elements and a selection of key useful patterns and utility classes that you can extend. Designed to be composable, you can include the whole framework to avail of all styles or you can use only what you need for your project. Anyone can contribute to Vanilla, improve it and extend it. All the code is available on GitHub and is licensed under LGPLv3 by Canonical.
    Downloads: 1 This Week
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  • 21
    fastn

    fastn

    (Alpha stage software) fastn - Full-stack Web Development Made Easy

    ftd is a programming language for building user interfaces and content-centric websites. ftd is easy to learn, especially for nonprogrammers, but it does not compromise on what you can build with it. fastn is a web framework, a content management system, and an integrated development environment for ftd. fastn is a web server, that compiles ftd to HTML/CSS/JS and can be deployed on your server, or on fastn cloud by FifthTry. ftd is designed with minimal and uniform syntax, and at first glance does not even look like a programming language.
    Downloads: 1 This Week
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  • 22
    turretcss

    turretcss

    Turret is a styles and browser behaviour normalisation framework

    Developed for design, turretcss is a styles and browser behavior normalization framework for the rapid development of responsive and accessible websites. Newly added features include: increasing the size scale, adding sizes for display title and lead, generic group styles, and box-shadow utility classes. Added utility classes for the cursor property. A generic group behavior to align and space between like items within lists. Globally set box shadows with size variants to set on any element easily with utility classes. PostCSS with postcss-preset-env to write tomorrow's CSS spec today with the polyfills you need. Designed for speed turretcss is designed to make responsive, accessible, and scalable CSS development simple, and predictable. Write clean, simple, and modern HTML & CSS with intuitive size and style utilities with PostCSS and postcss-preset-env.
    Downloads: 1 This Week
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  • 23
    Scrolling Game Development Kit 2
    All-in-one program for creating 2D scrolling games. Compile your games into stand-alone .NET executables or customizable C# source code. The IDE and framework are build on OpenTK, which wraps OpenGL, so generated games can be cross-platform.
    Downloads: 5 This Week
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  • 24
    POCO C++ Libraries

    POCO C++ Libraries

    Cross-platform C++ libraries with a network/internet focus.

    NOTE: Current source code as well as bugs/patches are on GitHub: https://github.com/pocoproject/poco/ C++ class libraries for network-centric, portable applications, integrated perfectly with the C++ Standard Library. Includes network protocols (Sockets, HTTP, FTP, SMTP, POP3, etc.), SQL database access and XML parsing. Licensed under Boost license.
    Downloads: 4 This Week
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  • 25
    Simple is an XML serialization framework for Java. Its goal is to provide an XML serialization framework that enables rapid development of XML configuration and XML communication applications.
    Downloads: 4 This Week
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