Best Second Brain Alternatives in 2026
Short on time? Start with what matters most to you.
Top Second Brain alternatives, reviewed
Each alternative below, with what it does well, who it suits, and what it costs.
1. Tolaria
Free
Tolaria is an open-source note-taking app that organizes notes as Markdown files with YAML frontmatter, offering native relationships, Git integration, local agents, and direct AI model providers. It features a block-based editor with wikilinks, whiteboards, and media previews, plus a fully integrated Git client for version control. Designed for AI-assisted development, it supports CLI coding agents and local or API model providers for chat over note context. Free forever, no account required.
- Markdown-based notes
- Block-based editor
- Git integration
