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ResponsiveTestTool is a free web tool for previewing any website across mobile, tablet, desktop and TV screen sizes. Users paste a URL to see how the site renders on different devices without signing up.
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ResponsiveTestTool is a free web tool for previewing any website across mobile, tablet, desktop and TV screen sizes. Users paste a URL to see how the site renders on different devices without signing up.
HTML Reference is a free guide to HTML elements and attributes. The site organizes elements into collections including base elements, forms, lists, semantic elements and tables, and marks some entries as experimental. Each element entry lists attributes with meta, self-closing, inline and block annotations.
Bootstrap is an open source design system and frontend toolkit for building web projects. It provides a prebuilt grid system and components, customization with Sass, and JavaScript plugins. The site also lists versioned documentation for Bootstrap 3, 4, 5 and a 6 alpha release.
Mockend creates fake REST and GraphQL APIs from a mockend.yml file in a GitHub repository. It generates data with random generators and supports model relations. Writes are not persisted. The documented uses include working without a completed backend and building demos or prototypes. Pricing is per account, with Pro at $29 per month and Business at $99 per month after a 14-day free trial.
Selenium is an umbrella project of tools and libraries for automating web browsers. It provides extensions to emulate user interaction and infrastructure for W3C WebDriver implementations, letting developers write interchangeable code for major browsers. It is primarily used for automating web applications for testing.
Vvveb is an open source content management system and ecommerce platform with a drag-and-drop page builder. It can run as a traditional CMS or headless, offering GraphQL and REST APIs, role-based access, localization and multiple payment methods. Installation supports SQLite, MySQL and PostgreSQL, and it is compatible with PHP versions 7.4 to 8.4+.
