SiYuan
A privacy-first personal knowledge management software, written in typescript and golang.
Free
Knowledge management
Knowledge management is the collection of methods relating to creating, sharing, using and managing the knowledge and information. · Category descriptions are the source's original text
NoteDiscovery
Markdown note-taking app with plain-file storage, graph view, and MCP integration (alternative to Obsidian, Notion).
Aleph
Tool for indexing large amounts of both documents (PDF, Word, HTML) and structured (CSV, XLS, SQL) data for easy browsing and search. It is...
Atomic Server
Knowledge graph database with documents (similar to Notion), tables, search, and a powerful linked data API. Lightweight, very fast and no r...
Marmot
Data catalog for discovering and organizing data assets across your stack, including databases, APIs, message queues, and pipelines.
TeamMapper
Host and create your own mindmaps. Share your mindmap sessions with your team and collaborate live on mindmaps.
LibreKB
Web-based knowledge base solution. A simple web app, it runs on pretty much any web server or hosting provider with PHP and MySQL.
memEx
Structured personal knowledge base, inspired by zettlekasten and org-mode.
QST
Online assessment software. From a quick quiz on your phone to large scale, high stakes, proctored desktop testing, easy, secure and economi...
Wiznote
Manage your knowledge in documents with folders, markdown, full text search and webpage collection support.
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Advertising
Ad Platform
A display-ad broker with advertiser, partner and operator consoles
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Real estate
Rental Billing
Space rental, contracts and billing in one button — for small landlords
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Finance · Trading
AI Auto-Trading
Automated trading where AI reviews every strategy and every decision is on record
The free solution list is based on awesome-selfhosted (CC-BY-SA 3.0) and awesome-sysadmin (CC-BY-SA 4.0) data; each entry remains the copyright of its project.