SiYuan offers a self-hosted knowledge workspace described as open-source and privacy-first, with collaboration for people and AI agents.
Silicon
vsSigmaNote
Silicon vs SigmaNote
How do Silicon and SigmaNote compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Silicon | SigmaNote |
|---|---|---|
| What it is | Silicon Notes is a web-based personal knowledge base described as having few frills. | SigmaNote organizes PDFs, voice notes, webpages, and videos into a searchable knowledge base for AI-assisted learning and work. |
| Website | ||
| Type | Open-source project | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Not recorded | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Silicon and SigmaNote.
Open source
24 alternativesRecall saves and summarizes articles, videos, podcasts, PDFs, and notes in a personal AI knowledge base.
SwarmVault combines a local-first LLM wiki with a knowledge graph, RAG knowledge base, and agent memory store.
Open source
24 alternativesTrilium Notes supports building a personal knowledge base, as described by the project page.
Open source
24 alternativesTrilium Notes is an open-source app for taking notes and organizing a personal knowledge base locally or through synchronization.
Note Discovery describes itself as a self-hosted knowledge base, according to its repository page.
Open source
24 alternatives






