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Best API Notes & Knowledge Base for self-hosting

The 7 best API notes & knowledge base you can self-host, ranked by community traction.

Memos

Notes & Knowledge Base

Lightweight self-hosted note and memo hub

Replaces Notion, Google Keep

★ 62.1k Easy setup MIT

Khoj

Notes & Knowledge Base

Self-hostable AI assistant over your personal notes

Replaces Notion AI, Evernote

★ 36.4k Medium setup AGPL-3.0

Dnote

Notes & Knowledge Base

Simple command-line notebook with multi-device sync

Replaces Evernote, Simplenote

★ 3.1k Easy setup AGPL-3.0

Trilium Notes Next

Notes & Knowledge Base

Hierarchical note-taking app for building knowledge bases

Replaces Evernote, OneNote

★ 2.9k Medium setup AGPL-3.0

WizNote

Notes & Knowledge Base

Cross-platform note-taking app with a self-hosted server

Replaces Evernote, OneNote

★ 2.7k Medium setup GPL-3.0

RocketNotes

Notes & Knowledge Base

Web-based Markdown note-taking app with AI assistance

Replaces Notion, Evernote

★ 1.4k Medium setup Apache-2.0

WiseMapping

Notes & Knowledge Base

Web-based mind mapping for visual knowledge capture

Replaces MindMeister, XMind

★ 296 Medium setup WiseMapping-OSL-2.0

Every option here is open-source and self-hostable, tagged API within the notes & knowledge base category. Compare them on the individual app pages for setup difficulty and resource requirements.