SiYuan offers a self-hosted knowledge workspace described as open-source and privacy-first, with collaboration for people and AI agents.
Open source
24 alternativesSigmaNote
vsSilicon
SigmaNote vs Silicon
How do SigmaNote and Silicon compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | SigmaNote | Silicon |
|---|---|---|
| What it is | SigmaNote organizes PDFs, voice notes, webpages, and videos into a searchable knowledge base for AI-assisted learning and work. | Silicon Notes is a web-based personal knowledge base described as having few frills. |
| Website | ||
| Type | Website | Open-source project |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Not recorded |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both SigmaNote and Silicon.
Recall 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 alternatives
Trilium Notes supports building a personal knowledge base, as described by the project page.
Open source
24 alternatives
Trilium Notes is an open-source app for taking notes and organizing a personal knowledge base locally or through synchronization.
NoteDiscovery provides a self-hosted Markdown knowledge base with AI assistant integration, wikilinks, and graph views.
FreeOpen source
21 alternatives