TheBrain is a visual knowledge network for connecting notes, files, links, projects, and AI. Users organize information as linked thoughts and can navigate relationships through graph views and backlinks. TheBrain 15 includes Card View, Mind Map, and Tree View. Cerebro AI can create content, search and summarize a brain, suggest links, and converse using its knowledge. The software is available on Windows, macOS, Linux, iOS, Android, and the web. Brains are local by default, and Windows, Mac, and Linux users can keep data local without cloud sync. The free app allows unlimited thoughts, links, and brains, with private sync up to 1,000 thoughts, 100 MB of synced attachment storage, and a daily AI allowance. Pro Service costs $15/mo and adds unlimited private sync, 30 GB online storage, and one-on-one support. TeamBrain adds multi-user editing and shared brains, while Max Service increases storage and AI usage. The local API lets scripts and external tools create and link thoughts, run commands, and query brain data. Files linked from elsewhere are not synchronized.
Who it is for
TheBrain suits people who want to connect notes, files, projects, and links in a visual network. Its local-data options may suit Windows, Mac, and Linux users who do not want cloud sync; teams can consider TeamBrain.
What is good
- Unlimited thoughts, links, and brains on the free app.
- Local use is available without cloud sync.
- Includes graph views and backlinks.
- Cerebro AI can search and summarize a brain.
- Available across desktop, mobile, web, and API.
What to know first
- Free private sync is limited to 1,000 thoughts.
- Free synced attachment storage is 100 MB.
- Externally stored linked files and folders do not sync.
- Cloud data beyond free limits may be removed after a prolonged plan lapse.
Verdict
TheBrain offers a visual way to connect information, with local use, multiple views, and optional AI. The free app permits unlimited thoughts, but its cloud sync and attachment allowances are limited.
TheBrain plans and pricing
All plansCompared on personal knowledge management software
- Free plan
- Yes
- Backlinks
- Yes
- Graph view
- Yes
- Organization model
- graph
- Offline access
- Yes
- Supported platforms
- Windows, macOS, Linux, iOS, Android, Web
- Import and export
- Yes
