Open Source CSS Alternatives

A curated collection of the best open-source tools related to CSS. This guide highlights noteworthy options with active communities, modern features, and self-hosting support.

Ghost is a powerful open source platform for professional publishing. Designed for creators, publishers, and businesses, Ghost brings together everything you need to build an independent publication: blazing-fast blogs, newsletters, memberships, and premium subscriptions. Self-hosting Ghost gives you full control over your content, design, and data while avoiding SaaS lock-in. Whether you’re running a personal blog, a digital magazine, or a paid membership community, Ghost helps you create, grow, and own your audience.

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Online appointment scheduling system

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Communications platform that puts data protection first

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Web-based operating system designed to be feature-rich, exceptionally fast, and highly extensible

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All-in-one desktop & Docker AI application with built-in RAG, AI agents, No-code agent builder, MCP compatibility, and more

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Your AI second brain. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI

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One-of-a-kind resume builder that keeps your privacy in mind. Completely secure, customizable, portable, open-source and free forever

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Knowledge base that works with a SQLite db file

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