Showing 2091 open source projects for "free"

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  • 1
    Google Style Guides

    Google Style Guides

    Style guides for Google-originated open source projects

    Google Styleguide is a comprehensive collection of coding style guides created and maintained by Google to ensure consistency, readability, and maintainability across its vast array of software projects. These guides define best practices and conventions for writing code in multiple programming languages, from C++ and Python to JavaScript, Go, and Swift. By adhering to these standards, developers can more easily collaborate, review code, and maintain high-quality software across teams and...
    Downloads: 2 This Week
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  • 2
    Pylint

    Pylint

    It's not just a linter that annoys you!

    Pylint is a static code analyzer for Python 2 or 3. The latest version supports Python 3.7.2 and above. Pylint analyses your code without actually running it. It checks for errors, enforces a coding standard, looks for code smells, and can make suggestions about how the code could be refactored. Projects that you might want to use alongside pylint include flake8 (faster and simpler checks with very few false positives), mypy, pyright or pyre (typing checks), bandit (security-oriented...
    Downloads: 2 This Week
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  • 3
    Browsersync

    Browsersync

    Keep multiple browsers & devices in sync when building websites

    With each web page, device and browser, testing time grows exponentially. From live reloads to URL pushing, form replication to click mirroring, Browsersync cuts out repetitive manual tasks. It’s like an extra pair of hands. Customise an array of sync settings from the UI or command line to create a personalised test environment. Need more control? Browsersync is easily integrated with your web platform, build tools, and other Node.js projects. Built on Node.JS_ENTRY to support Windows,...
    Downloads: 2 This Week
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  • 4
    Oboe

    Oboe

    Oboe is a C++ library that makes it easy to build high-performance

    ...It abstracts device and API-version differences so developers can focus on audio processing instead of platform quirks. The library emphasizes minimal latency and glitch-free playback/recording via tuned buffer strategies and callback-driven I/O. It supports features like floating-point audio, channel configuration, sample-rate negotiation, and stream sharing to match device capabilities. Example apps and utilities demonstrate best practices for thread priority, audio mixing, and underrun handling. By aligning with the native audio stack, oboe enables professional music apps, real-time communications, and games to achieve consistent audio performance across a wide range of devices.
    Downloads: 1 This Week
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  • 5
    Flax

    Flax

    Flax is a neural network library for JAX

    ...Its design separates pure computation from state by threading parameter collections and RNGs explicitly, enabling reproducibility, transformation, and easy experimentation with JAX transforms like jit, pmap, and vmap. Modules define parameterized computations, but initialization and application remain side-effect free, which pairs naturally with JAX’s staging and compilation model. Flax emphasizes composability: optimizers, training loops, and checkpointing are provided as examples or utilities rather than monolithic frameworks, encouraging research-friendly customization. The library is widely used in vision, language, and reinforcement learning, often serving as a thin layer atop NumPy-like JAX primitives. ...
    Downloads: 1 This Week
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  • 6
    Best Flutter UI Templates

    Best Flutter UI Templates

    completely free for everyone. Its build-in Flutter Dart

    This repository is a large collection of high-quality Flutter UI templates covering a wide variety of app categories. It includes templates for e-commerce, fitness, hotel booking, chat/messaging, finance, and more. Each template provides ready-made screens with polished visuals, iconography, and color schemes designed for production-level apps. The layouts are responsive and customizable, helping developers save time when prototyping or launching apps. The project is structured modularly so...
    Downloads: 1 This Week
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  • 7
    git-cola

    git-cola

    git-cola: The highly caffeinated Git GUI

    Git Cola is a sleek and powerful graphical user interface for Git. Git Cola is free software and written in Python (v2 + v3). Git Cola uses QtPy, so you can choose between PyQt6, PyQt5 and PySide2 by setting the QT_API environment variable to pyqt6, pyqt5 or pyside2 as desired. qtpy defaults to pyqt6 and falls back to pyqt6 and pyside2 if pyqt5 is not installed. Git Cola enables additional features when the following Python modules are installed. send2trash enables cross-platform "Send to Trash" functionality. ...
    Downloads: 1 This Week
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  • 8
    OpenUI5

    OpenUI5

    OpenUI5 lets you build enterprise-ready web applications

    OpenUI5 lets you build enterprise-ready web applications, responsive to all devices, running on almost any browser of your choice. OpenUI5 follows open standards and includes powerful development concepts, efficient tools, as well as a rich set of UI controls. No need to worry about device specifics! UI5 apps and controls run on smartphones, tablets and desktop browsers. OpenUI5 is a JavaScript UI Framework released by SAP under the Apache 2.0 license. It's open for contributions and...
    Downloads: 1 This Week
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  • 9
    c

    c

    Compile and execute C "scripts" in one go!

    I love C for its raw speed (although it does have its drawbacks). We should all write more C. With this shell script, you can compile and execute C "scripts" in one go! (Oh yeah, and it works for C++ too.) First of all, I want to clarify why this is not the same as tcc -run. TCC is a compiler. We all know that. TCC will perform its own set of optimizations, just as GCC will perform its own and Clang will perform its own. The purpose of this script is to give a simple front-end to your...
    Downloads: 1 This Week
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  • 10
    acme.sh

    acme.sh

    A pure Unix shell script implementing ACME client protocol

    ...Does not require root/sudoer access. Docker ready. IPv6 ready. Cron job notifications for renewal or error etc. It's probably the easiest & smartest shell script to automatically issue & renew the free certificates. After the cert is generated, you probably want to install/copy the cert to your Apache/Nginx or other servers. The ownership and permission info of existing files are preserved. You can pre-create the files to define the ownership and permission.
    Downloads: 1 This Week
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  • 11
    Psalm

    Psalm

    A static analysis tool for finding errors in PHP applications

    It’s easy to make great things in PHP, but bugs can creep in just as easily. Psalm is a free & open-source static analysis tool that helps you identify problems in your code, so you can sleep a little better. Psalm helps people maintain a wide variety of codebases, large and small, ancient and modern. On its strictest setting it can help you prevent almost all type-related runtime errors, and enables you to take advantage of safe coding patterns popular in other languages.
    Downloads: 1 This Week
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  • 12
    Knockout

    Knockout

    Tool to create rich, responsive UIs with JavaScript

    Easily associate DOM elements with model data using a concise, readable syntax. When your data model's state changes, your UI updates automatically. Implicitly set up chains of relationships between model data, to transform and combine it. Quickly generate sophisticated, nested UIs as a function of your model data. Get started with knockout.js quickly, learning to build single-page applications, custom bindings and more with interactive tutorials. Knockout is a JavaScript MVVM (a modern...
    Downloads: 1 This Week
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  • 13
    Corcel

    Corcel

    Use WordPress backend with Laravel or any PHP application

    ...You can use WordPress as the backend (administration panel) or CMS, for inserting posts, custom types, etc, and any other PHP app in the other side querying those data (as a Model layer). It's easier to use Corcel with Laravel, but you're free to use it with any PHP project that uses Composer.
    Downloads: 0 This Week
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  • 14
    pdfme

    pdfme

    A TypeScript based PDF generator library, made with React

    TypeScript base PDF generator and React-based UI. Open source, developed by the community, and completely free to use under the MIT license. No complex operations are required. Just bring your favorite template and generate all the PDFs you need. Works on node and the browser. Anyone can easily create and modify templates using Designer (UI template editor). Templates have a JSON document representation, which makes theme easy to understand and easy to work with.
    Downloads: 0 This Week
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  • 15
    Hydeout

    Hydeout

    A refreshed version of Hyde for Jekyll 3.x and 4.x

    Hydeout updates the original Hyde theme for Jekyll 3.x and 4.x and adds new functionality. In keeping with the original Hyde theme, Hydeout aims to keep the overall design lightweight and plugin-free. JavaScript is currently limited only to Disqus and Google Analytics (and is only loaded if you provide configuration variables). Hydeout makes heavy use of Flexbox in its CSS. If Flexbox is not available, the CSS degrades into a single-column layout.
    Downloads: 0 This Week
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  • 16
    NG-ZORRO

    NG-ZORRO

    Angular UI Component Library based on Ant Design

    An enterprise-class Angular UI component library based on Ant Design, all components are open source and free to use under MIT license. An enterprise-class UI design language for Angular applications. 60+ high-quality Angular components out of the box. Written in TypeScript with predictable static types. The whole package of development and design resources and tools. Support OnPush mode, high performance. Powerful theme customization in every detail.
    Downloads: 0 This Week
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  • 17
    Fishing Funds

    Fishing Funds

    Fund, big market, stock, virtual currency status bar display for apps

    ...Any trend and ranking data come from third-party websites and do not represent the author's views. This project is a small plug-in for personal use of the status bar, which is completely open source and free, and is only for learning.
    Downloads: 2 This Week
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  • 18
    sj.h

    sj.h

    A tiny little JSON parsing library

    sj.h is a tiny JSON parsing library written in C99 for developers who want a minimal, allocation-free way to walk through JSON data. It is intentionally small, around a few hundred lines or less depending on how it is counted, and keeps state minimal so it can fit into constrained environments. The library does not try to own every part of JSON handling; instead, it leaves number conversion and string interpretation to the user. This design gives developers direct control over memory, numeric precision, Unicode handling, and application-specific parsing behavior. ...
    Downloads: 0 This Week
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  • 19
    FunctionalPlus

    FunctionalPlus

    Functional Programming Library for C++

    ...By increasing brevity and maintainability of your code it can improve productivity (and fun!) in the long run. It pursues these goals by providing pure and easy-to-use functions that free you from implementing commonly used flows of control over and over again.
    Downloads: 0 This Week
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  • 20
    express-validator

    express-validator

    An express.js middleware for validator.js

    ...It's recommended that you have basic knowledge of the express.js module before you go on with this guide. Sometimes, receiving input in a HTTP request isn't only about making sure that the data is in the right format, but also that it is free of noise. validator.js provides a handful of sanitizers that can be used to take care of the data that comes in. Although express-validator offers plenty of handy validators and sanitizers through its underlying dependency validator.js, it doesn't always suffice when building your application. For these cases, you may consider writing a custom validator or a custom sanitizer. ...
    Downloads: 0 This Week
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  • 21
    Playground Cheatsheet for Python

    Playground Cheatsheet for Python

    Playground and cheatsheet for learning Python

    learn-python is another repository by Oleksii Trekhleb that serves as both a playground and an interactive cheatsheet for learning Python. It contains numerous Python scripts organized by topic (lists, dictionaries, loops, functions, classes, modules, etc.), each with code examples, explanations, test assertions, and links to further readings. The design supports “learn by doing”: you can modify the code, run the tests, see how behavior changes, and thus internalize Python language features,...
    Downloads: 1 This Week
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  • 22
    Ammonite

    Ammonite

    Scala Scripting

    Ammonite is a modern Scala REPL and scripting tool designed to give Scala users a more interactive and flexible REPL experience and to free them from heavyweight project boilerplate. It provides syntax‐highlighting, multiline editing, auto‐completion, and dynamic importing of dependencies (using a magic import syntax like import $ivy…). Instead of having to set up an sbt project for many small tasks, one can write Scala scripts (with .sc extension) and run them directly, with Ammonite handling compilation and execution transparently. ...
    Downloads: 1 This Week
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  • 23
    e107

    e107

    e107 Bootstrap CMS (Content Management System) v2 with PHP, MySQL

    e107 is a free and open-source content management system (CMS) that allows you to manage and publish your content online with ease. Developers can save time in building websites and powerful online applications. Users can avoid programming completely! Blogs, websites, intranets – e107 does it all. Make blog posts and static pages for your site with the click of a button.
    Downloads: 1 This Week
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  • 24
    Official Android SDK for Stream Chat

    Official Android SDK for Stream Chat

    Android Chat SDK ➜ Stream Chat API. UI component libraries for chat

    This is the official Android SDK for Stream Chat, a service for building chat and messaging applications. This library includes both a low-level chat SDK and a set of reusable UI components. Most users start with the UI components and fall back to the lower-level API when they want to customize things. We're proud to say that we're the first Android Chat SDK that supports Jetpack Compose! We released our Compose UI Components one day after the official Jetpack Compose 1.0 release and our...
    Downloads: 1 This Week
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  • 25
    Zerocode

    Zerocode

    API automation and load testing framework

    A community-developed, free, open source, microservices API automation and load testing framework built using JUnit core runners for Http REST, SOAP, Security, Database, Kafka and much more. Zerocode Open Source enables you to create, change, orchestrate and maintain your automated test cases declaratively with absolute ease. Zerocode makes it easy to create and maintain automated tests with absolute minimum overhead for REST,SOAP, Kafka Real Time Data Streams and much more.
    Downloads: 1 This Week
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