TemplateMo offers over 620 free HTML and CSS website templates, including responsive Bootstrap layouts and AI-customizable pure CSS designs. The templates are described as free for commercial, personal, or learning purposes, and no signup is required. Templates cover categories such as one-page, business, portfolio, and landing pages.
HTMLRev lists free HTML CSS templates and themes for websites, landing pages, blogs, portfolios, ecommerce and admin dashboards. Templates are grouped by framework, including Bootstrap, Bulma, Tailwind, Angular, React and Nextjs, alongside sponsor promotions.
Float UI provides responsive website templates and UI components for React, Vue, Svelte and HTML built with Tailwind CSS. It describes the components as free and open-source and as copy-and-paste ready, alongside professional templates built on React and Next.js with Tailwind CSS.
Color Oracle is a free color blindness simulator for Windows, Mac and Linux that applies a full screen color filter to show what people with common color vision impairments see. The software is open source and version 1.3 was released in 2018.
The GNOME Human Interface Guidelines are design documentation for software built with the GNOME platform, intended for app designers and developers. They cover design principles, resources, guidelines, patterns and reference material, and are meant for use with GTK 4 and Libadwaita.
A platform-agnostic specification of the technical features a good website should have, built in the open under an MIT licence. It covers 177 topics across ten areas, including foundations, SEO, accessibility, security, performance and privacy, and offers a yes/no checklist for auditing a site. An open, read-only MCP server lets agents query the specification.
Animista is a CSS animation library and a playground for ready-made CSS animations. Users can browse and adjust options such as easing, delay and duration, then copy the generated CSS code or download it. The download feature relies on the HTML5 FileSystem API and is supported in Chrome only.
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HTMLRev lists free HTML CSS templates and themes for websites, landing pages, blogs, portfolios, ecommerce and admin dashboards. Templates are grouped by framework, including Bootstrap, Bulma, Tailwind, Angular, React and Nextjs, alongside sponsor promotions.
Float UI provides responsive website templates and UI components for React, Vue, Svelte and HTML built with Tailwind CSS. It describes the components as free and open-source and as copy-and-paste ready, alongside professional templates built on React and Next.js with Tailwind CSS.
Color Oracle is a free color blindness simulator for Windows, Mac and Linux that applies a full screen color filter to show what people with common color vision impairments see. The software is open source and version 1.3 was released in 2018.
The GNOME Human Interface Guidelines are design documentation for software built with the GNOME platform, intended for app designers and developers. They cover design principles, resources, guidelines, patterns and reference material, and are meant for use with GTK 4 and Libadwaita.
A platform-agnostic specification of the technical features a good website should have, built in the open under an MIT licence. It covers 177 topics across ten areas, including foundations, SEO, accessibility, security, performance and privacy, and offers a yes/no checklist for auditing a site. An open, read-only MCP server lets agents query the specification.
Animista is a CSS animation library and a playground for ready-made CSS animations. Users can browse and adjust options such as easing, delay and duration, then copy the generated CSS code or download it. The download feature relies on the HTML5 FileSystem API and is supported in Chrome only.
