Showing 520 open source projects for "c# open source"

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  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

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    Catch Bugs Before Your Customers Do

    Real-time error alerts, performance insights, and anomaly detection across your full stack. Free 30-day trial.

    Move from alert to fix before users notice. AppSignal monitors errors, performance bottlenecks, host health, and uptime—all from one dashboard. Instant notifications on deployments, anomaly triggers for memory spikes or error surges, and seamless log management. Works out of the box with Rails, Django, Express, Phoenix, Next.js, and dozens more. Starts at $23/month with no hidden fees.
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  • 1
    CoreUI Free Vue Admin Template v4

    CoreUI Free Vue Admin Template v4

    Open source admin template based on Bootstrap 5 and Vue 3

    Time is our most valuable asset, that's why we want to help you save it by creating simple, customizable, easy-to-learn Vue.js UI components and Vue.js Admin Templates which significantly cut development time. CoreUI lets you save thousands of priceless hours because it offers everything you need to create modern, beautiful, and responsive Vue.js-based applications. CoreUI is meant to be the UX game changer. Pure & transparent code is devoid of redundant components, so the app is light...
    Downloads: 1 This Week
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  • 2
    axe-core

    axe-core

    Accessibility engine for automated Web UI testing

    Axe is an accessibility testing engine for websites and other HTML-based user interfaces. It's fast, secure, lightweight, and was built to seamlessly integrate with any existing test environment so you can automate accessibility testing alongside your regular functional testing. Axe-core has different types of rules, for WCAG 2.0 and 2.1 on level A and AA, as well as a number of best practices that help you identify common accessibility practices like ensuring every page has an h1 heading,...
    Downloads: 3 This Week
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  • 3
    dejavu

    dejavu

    The missing web UI for Elasticsearch

    dejavu is the missing web UI for Elasticsearch. Existing web UIs leave much to be desired or are built with server-side page rendering techniques that make it less responsive and bulkier to run (I am looking at you, Kibana). We started building dejavu with the goal of creating a modern Web UI (no page reloads, infinite scroll, filtered views, realtime updates, search UI builder) for Elasticsearch with 100% client-side rendering so one can easily run it as a hosted app on github pages, as a...
    Downloads: 3 This Week
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  • 4
    Inferno

    Inferno

    React-like JavaScript library for building modern user interfaces

    Inferno is an insanely fast, React-like library for building high-performance user interfaces on both the client and server. React-like API, concepts and component lifecycle events. Switch over easily with inferno-compat. One of the fastest front-end frameworks for rendering UI in the DOM, making 60 FPS on mobile possible. Isomorphic rendering on both client and server, along with fast-booting from server-side renders. Inferno doesn't have a fully synthetic event system like React does....
    Downloads: 3 This Week
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  • Auth0 B2B Essentials: SSO, MFA, and RBAC Built In Icon
    Auth0 B2B Essentials: SSO, MFA, and RBAC Built In

    Unlimited organizations, 3 enterprise SSO connections, role-based access control, and pro MFA included. Dev and prod tenants out of the box.

    Auth0's B2B Essentials plan gives you everything you need to ship secure multi-tenant apps. Unlimited orgs, enterprise SSO, RBAC, audit log streaming, and higher auth and API limits included. Add on M2M tokens, enterprise MFA, or additional SSO connections as you scale.
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  • 5
    Add to Calendar Button

    Add to Calendar Button

    The convenient JavaScript snippet to create buttons

    The convenient JavaScript snippet, which lets you reliably create beautiful buttons, where people can add events to their calendars. Welcome to the maybe most conveniant way working with Add to Calendar Buttons. Supporting all major calendars; in all modern browsers (Chrome, Edge, Firefox, Safari); on Windows, Mac, Android, and iOS as well as rather restricted webview environments like the Instagram in-app browser. For everybody, who wants to include a button at their website or app, which...
    Downloads: 2 This Week
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  • 6
    evol-colorpicker

    evol-colorpicker

    jQuery UI widget for color picking with web colors, theme colors, etc.

    evol-colorpicker is a web color picker that looks like the one in Microsoft Office 2010. It can be used inline or as a popup bound to a text box. It comes with several color palettes, can track selection history, and supports "transparent" colors. It is a full jQuery UI widget, supporting various configurations and themes.
    Downloads: 1 This Week
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  • 7
    Oruga UI

    Oruga UI

    Oruga is a lightweight library of UI components without CSS framework

    Oruga is a lightweight library of UI components without CSS framework dependency. CSS framework agnostic: No dependency on a specific CSS framework/library but you can easily integrate the components with one of them because they are fully customizable in different ways. Components with steroids: most of the components aren't a simple wrapper of native elements but they add new and custom features. Lightweight: no other internal dependency and import only components that you need. Oruga...
    Downloads: 2 This Week
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  • 8
    Shoutem UI

    Shoutem UI

    Customizable set of components for React Native applications

    Shoutem UI is a set of styleable components that enables you to build beautiful React Native applications for iOS and Android. All of our components are built to be both composable and customizable. Each component has a predefined style that is compatible with the rest of the Shoutem UI, which makes it possible to build complex components that look great without the need to manually define complex styles. You can also use standard React Native components in your layouts anywhere you want,...
    Downloads: 2 This Week
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  • 9
    stylelint

    stylelint

    A linter that helps you avoid errors and enforce conventions

    stylelint understands the latest CSS syntax including custom properties and level 4 selectors. Extracts embedded styles from HTML, markdown and CSS-in-JS object & template literals. Parses CSS-like syntaxes like SCSS, Sass, Less and SugarSS. Has over 170 built-in rules to catch errors, apply limits and enforce stylistic conventions. Supports plugins so you can create your own rules or make use of plugins written by the community. Automatically fixes the majority of stylistic violations. Itis...
    Downloads: 1 This Week
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  • Go from Code to Production URL in Seconds Icon
    Go from Code to Production URL in Seconds

    Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

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  • 10
    pg-promise

    pg-promise

    PostgreSQL interface for Node.js

    pg-promise is a PostgreSQL client for Node.js that uses promises for query execution, providing a robust and efficient interface for database interactions.
    Downloads: 0 This Week
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  • 11
    ember-engines

    ember-engines

    Composable Ember applications for ambitious user experiences

    Engines allow multiple logical applications to be composed together into a single application from the user's perspective. The key term here is "logical application". That is, an Engine represents a set of functionality and user experiences that could logically be considered an application. However, they differ from normal Ember applications in that they are intended to be composed within a host application in order to create a single, cohesive user experience. On a technical level, engines...
    Downloads: 1 This Week
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  • 12
    Inquirer.js

    Inquirer.js

    A collection of common interactive command line user interfaces

    Inquirer.js strives to be an easily embeddable and beautiful command line interface for Node.js (and perhaps the "CLI Xanadu"). Inquirer.js should ease the process of providing error feedback, asking questions, parsing input, validating answers, and managing hierarchical prompts. Inquirer.js provides the user interface and the inquiry session flow. If you're searching for a full blown command line program utility, then check out commander, vorpal or args. Create a self contained inquirer...
    Downloads: 1 This Week
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  • 13
    React Joyride

    React Joyride

    Create guided tours in your apps

    Showcase your app to new users or explain functionality of new features. It uses react-floater for positioning and styling. And you can use your own components too!
    Downloads: 0 This Week
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  • 14
    Bootstrap 5 UI KIT

    Bootstrap 5 UI KIT

    Bootstrap 5 & Material Design 2.0 UI KIT

    Trusted by 2 000 000+ developers & designers. Used by companies & institutions. Super simple, 1 minute installation. Detailed docs & practical examples. Lots of tutorials. Plain JavaScript (but works also with jQuery). Huge and active community. MIT license, free for personal & commercial use. Simplicity and ease of use are key features of MDB 5 UI Kit. You need only one minute to install and run it. A slideshow component for cycling through elements, images or slides of text, like a...
    Downloads: 1 This Week
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  • 15
    React Dashboard

    React Dashboard

    Isomorphic admin dashboard template

    ...This seed project is a sort of a free version of a template that may be found on Themeforest or Wrapbootstrap with working backend integration. You may use it to bootstrap the development of your next web app. You can open your web app in a browser, on mobile devices and start hacking. Whenever you modify any of the source files inside the /src folder, the module bundler (Webpack) will recompile the app on the fly and refresh all the connected browsers. React is a declarative, efficient, and flexible JavaScript library for building user interfaces. ...
    Downloads: 0 This Week
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  • 16
    jQuery Password Strength Meter

    jQuery Password Strength Meter

    jQuery Password Strength Meter for Twitter Bootstrap

    The jQuery Password Strength Meter is a plugin for Twitter Bootstrap that provides rulesets for visually displaying the quality of a user's typed-in password. Dual licensed under the MIT and GPL licenses. You can choose the one that suits your purposes better. AdminKit is a developer-friendly & highly customizable Bootstrap 5 admin template featuring hundreds of UI components, forms, tables, charts, and icons.
    Downloads: 0 This Week
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  • 17
    react-native-popup-menu

    react-native-popup-menu

    Popup menu component for React Native

    Extensible popup menu component for React Native for Android, iOS and (unofficially) UWP and react-native-web. Simple to use popup/context menu. Multiple modes: animated, not animated, slide in from the bottom or popover. By default opening and closing animations. Optional back button handling. Easy styling. Customizable on various levels - menu options, positioning, animations. Can work as controlled as well as uncontrolled components. Different lifecycle hooks. RTL layout support.
    Downloads: 0 This Week
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  • 18
    react-native-modal-datetime-picker

    react-native-modal-datetime-picker

    A React-Native datetime-picker for Android and iOS

    A declarative cross-platform react-native date and time picker. This library exposes a cross-platform interface for showing the native date-picker and time-picker inside a modal, providing a unified user and developer experience.
    Downloads: 0 This Week
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  • 19
    react-swipeable-views

    react-swipeable-views

    A React component for swipeable views

    A React component for swipeable views. react-native support is experimental and I have no plan pushing it forward. I start to think that lower level abstraction to share the implementation between the platforms are more appropriate. We have two different implementations of the react-swipeable-views API. The project is split into multiple packages. This is really useful for code sharing and isolation. We are using Lerna to do so. The infinite feature is provided thanks to a higher order...
    Downloads: 0 This Week
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  • 20
    Vue CLI

    Vue CLI

    Standard Tooling for Vue.js Development

    Vue CLI is the Standard Tooling for Vue.js Development. Vue CLI provides a great number of features including out-of-the-box support for TypeScript, Babel, PostCSS, ESLint, PWA, as well as Unit Testing and End-to-end Testing. It comes with its own graphical user interface and a plugin system that allows for the building and sharing of reusable solutions that can answer common needs. Vue CLI provides instant prototyping with a single Vue file, and is fully configurable with no need for...
    Downloads: 0 This Week
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  • 21
    Loki

    Loki

    Visual Regression Testing for Storybook

    There are a few visual regression tools for the web, but most either cannot be run headless or use phantomjs which is deprecated and a browser nobody is actually using. They usually also require you to maintain fixtures. With react-native it's now possible to target multiple platforms with a single code base, but there's no single tool to test all to my knowledge. Loki aims to have easy setup, no to low maintenance cost, reproducible tests independent of which OS they are run on, runnable on...
    Downloads: 0 This Week
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  • 22
    Spacegray

    Spacegray

    A hyperminimal UI theme for sublime text

    A set of custom UI themes for Sublime Text 2/3. It's all about hype and minimal. Comes in different flavors with accompanying Base16 color schemes. Default flavor based on Base16 Ocean Dark color scheme. The easiest way to install is using Sublime Package Control, where Spacegray is listed as Theme - Spacegray. Activate the UI theme and color scheme by modifying your user preferences file, which you can find using the menu item Sublime Text -> Preferences -> Settings - User (⌘, on Mac). You...
    Downloads: 0 This Week
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  • 23
    Konsta UI

    Konsta UI

    Mobile UI components made with Tailwind CSS

    Pixel perfect mobile UI components built with Tailwind CSS. With iOS and Material Design components for React, Vue & Svelte. All Konsta UI components come with pixel-perfect native-like iOS and Material Design themes created using official design guidelines. Everything you need for your iOS and Android apps! Konsta UI is mostly designed to be used with "parent" frameworks like Ionic or Framework7. In this case, you use the "parent" framework as your app shell (routing, navigation, state...
    Downloads: 0 This Week
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  • 24
    Reactive Search

    Reactive Search

    Search UI components for React and Vue

    Build the perfect search experience using our UI components or by creating your own. 30+ pre-built components with customizable queries and configurable styles. Focus on design and user experience as ReactiveSearch handles the details. 30+ well-designed and performance-optimized UI components. Ship faster and solve fewer edge cases. Already have your own components? Bring them to ReactiveSearch. Styled components with rich theming and CSS class-injection support. Reactivesearch components...
    Downloads: 0 This Week
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  • 25
    Rancher UI

    Rancher UI

    Rancher UI

    Rancher is a complete software stack for teams adopting containers. It addresses the operational and security challenges of managing multiple Kubernetes clusters across any infrastructure while providing DevOps teams with integrated tools for running containerized workloads. We highly suggest making customizations as an ember-cli addon rather than forking this repo, making a bunch of changes and then fighting conflicts to keep it up to date with upstream forever. ui-example-addon-machine is...
    Downloads: 0 This Week
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