Graduated as an Apache Software Foundation Top-Level Project with over 15,500 GitHub stars and 100,000+ Docker Hub downloads, Apache Answer delivers the structured Q&A platform that Stack Overflow and Discourse popularized — fully self-hosted under Apache 2.0 with zero vendor lock-in. The Go backend with React frontend serves questions, answers, and knowledge articles with real-time Markdown preview using CommonMark syntax, inline @mentions to ping domain experts, and transparent revision history tracking every edit. Version 2.0 introduced AI workflows including an integrated AI assistant that helps draft and improve answers, a Model Context Protocol server for connecting AI agents to your knowledge base, API key management, and editor plugin support for extending the writing experience. Advanced search filters by tags, usernames, scores, and date ranges, while real-time suggestions surface relevant existing questions as users type to reduce duplicates. The reputation system rewards quality contributions with configurable privilege thresholds, and admin/moderator/user roles control access across the platform. A plugin architecture enables community-built extensions for third-party OAuth login, caching backends, search engines, and storage providers. Theming supports custom layouts, dark mode, and responsive design across devices, with content available in 15+ languages translated by the community. Bulk user import, email domain restrictions, and content access controls secure the platform for enterprise deployment. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

Scoold brings Stack Overflow-style Q&A to a server you control, so answers get voted, accepted, and found again instead of scrolling away in chat. Askers get a Markdown editor with live preview, tags, and emojis, and the form suggests similar questions and flags likely duplicates before anything is posted. Answerers collect upvotes, accepted answers, reputation points, and badges, including custom ones with your own text, icon, and color. Authors and moderators can restore any earlier revision, because every edit is kept. Searchers can use Lucene syntax such as exact phrases, wildcards, and boolean operators. Admins split one site into private spaces, up to ten in the free edition, and choose how people sign in: email and password, LDAP, or social providers such as Google and GitHub. They can also back up and restore data, import a Stack Overflow for Teams export, and follow a dashboard of questions, answers, traffic, and active members. Builders get a REST API with OpenAPI docs, signed webhooks, Zapier and n8n connectors, and an optional MCP server for AI assistants. Color themes include a dark mode, Mermaid diagrams and KaTeX formulas can be switched on, and right-to-left languages are supported. SAML, SCIM, file uploads, and chat integrations are Pro-edition features. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.