Open Source Next.js Projects
Discover 28 open source Next.js repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. Next.js projects here are most often combined with TypeScript, Web App and React. Last updated October 3, 2026.
28 repositories · updated October 3, 2026

maily.to: Effortless Email Editor for Impeccable Communication
Maily.to is a powerful open-source email editor designed to simplify the creation of beautiful, mobile-ready emails. It ensures impeccable communication across all major email clients, offering a hassle-free design experience. With Maily, users can leverage pre-designed components to craft professional emails quickly and efficiently.

presentation-ai: Generate and Edit AI-Powered Presentations
ALLWEONE Presentation AI creates customizable slide decks from a topic, with an editable outline and live generation. It suits people who want to build, edit, present, or export presentations in a web app.

21st: Discover and Install React UI Components
21st is a community registry and marketplace for reusable React components built with Tailwind CSS and Radix UI. It helps developers find, publish, and install shadcn/ui-style components in their projects.

SurfSense: Open Source AI Research Agent with Extensive Integrations
SurfSense is an open-source AI research agent designed as an alternative to tools like NotebookLM and Perplexity. It integrates with a wide array of external sources, including search engines, Slack, Notion, and GitHub, allowing users to connect their personal knowledge base. This highly customizable tool offers features like powerful search, chat with saved content, cited answers, and local LLM support for enhanced privacy.