TheBrain 14

Introducing TheBrain 14

Unleash the Power of AI in Your Thoughts

Transforming your creativity and productivity has never been easier. Dive into a realm where artificial intelligence meets human insight, and every idea finds its natural space and significance.

TheBrain 14 revolutionizes your digital thinking canvas with AI-driven thought generation and writing tools, cutting-edge search capabilities spanning across multiple brains, an enhanced web-browsing experience for Windows users, sleeker UI, and a multicultural interface that speaks in 78 languages. Think deeper and achieve those eureka moments effortlessly with TheBrain 14.

Version 14.0 Release notes

Download TheBrain 14 from your Windows or macOS device. For mobile access, TheBrain mobile clients remain compatible.

Version 14.0 | Release notes

Download for macOS
Requires macOS 10.14 or higher

Download for Windows
Requires Windows 10 or higher

Download for Windows
Requires Windows 10 or higher

Download for macOS
Requires macOS 10.14 or higher

Having trouble updating? Please see the Windows troubleshooting guide.

Download for Windows
Requires Windows 10 or higher

Download for macOS
Requires macOS 10.14 or higher

and notes.

Idea capture, visualization and AI all work in concert to infuse your second brain with astounding new insights. Integrated artificial intelligence generates outlines and content with the click of a button. Learn more.

Upgrades and Licensing

TheBrain 14 will be a free upgrade included with TheBrain Pro Services and for TheBrain Pro License if purchased after June 17, 2023.

More Updates to Come

Stay tuned for more about TheBrain 14. We are working on additional coverage of this brand new release.


TheBrain 14 can be installed side-by-side with TheBrain 13. Data is backward compatible with the following exceptions:

  • After a brain has been opened in Version 14, any content added via Version 13 will not show in Version 14's search results until that brain is manually re-indexed within Version 14.
  • Any content added to a brain via Version 14 will not show in Version 13's search results until that brain is manually re-indexed in Version 13.

TheBrain 14 Features

AI Generation of Thoughts

  • Put AI to work in your brain with just a few clicks.
  • Generate entire structures of related thoughts.
  • Add relevant child thoughts.
  • Easily configurable to get the results you need.
  • Preview results before incorporating into your brain.
  • Only content you explicitly specify is sent to the AI engine.
  • Proxy support for AI generation features.
  • Customization option for private OpenAI API keys.
    • Preference to select specific AI models.

AI Writing Tools

The new AI menu includes powerful capabilities that will increase your productivity.

  • Generate Note writes new content on any topic you specify. This can be used to create an all-new note based on the name of the thought or it can be used to insert additional content on anything you want into an existing note.
    • Word Count and Creativity sliders for adjusting content.
    • Set Context Thought provides guidance for the note's content.
    • Language option to create a note in one of 78 different languages.
  • Summarize generates a summary of the entire note or of the selected text.
  • Rewrite replaces the note or the selection with a new version in the style you specify. Example styles: formal business, using simple words, avoid the word “late”.
  • Correct Spelling & Grammar makes minimal changes while fixing errors.
  • Organize groups related pieces of text together.
  • Expand generates more text going into greater detail.
  • Auto-Complete creates additional content that finishes the existing idea.
  • Extract Action Items makes a checklist of to dos based on the content.
  • Translate translates an entire note, paragraph, sentence or even a single word into any language.
  • Most commands can be run on the entire note or just the selected text.
  • When AI completes writing you can preview the generated content before accepting it.
    • Three views display the original text, the modified text and a comparison highlighting the changes made.

Embedded Search and Indexing

  • Advanced search technology now delves into every nook and cranny of your brain, ensuring notes and attachments aren't left out.
  • Say goodbye to relying on your operating system’s search and indexing. TheBrain’s search engine stands on its own, ensuring you a more consistent and reliable search experience.

Cross-Brain Search

  • Search once, discover everywhere. Get results not only from your active brain but from every other brain synced to your machine.
  • No need to remember which brain holds that piece of information that you’re looking for. It's all at your fingertips.
  • Find what you're looking for? Click the search result to jump directly to its location in any other brain.

All New Browser for Windows

  • Faster and more accurate rendering of all web pages.
  • Drag and drop links from pages in the browser to the plex to create new thoughts.
  • Play videos from YouTube, Vimeo and more right from TheBrain.
  • Almost every site now functions within the integrated browser including Google Docs, Google Sheets, Amazon, ChatGPT, and more.
  • Support for context/right-click menu to copy links, print pages and more.
  • Support for dictation and other features within the browser.
  • Zoom in and out of the browser using Ctrl + + or Ctrl + - or Ctrl + Wheel.
  • Download files from the internal browser.

User Interface Improvements

  • Love a certain brain? Simply right-click its thumbnail, and select Favorite Brain. It will now appear in its own special section, right at the top of your main brains list.
  • Option to limit find/replace selected thoughts.
  • Improved look and feel on Windows.
  • Redesigned brain tabs with ability to set custom colors and more.

Multiple Languages

  • TheBrain’s interface is now localized in 78 languages and will default to the language of your OS. To change languages manually, go to Preferences > System > Localization > Interface Language.

Performance Improvements

  • Improved startup speed.
  • Faster application performance using fewer system resources.

TheBrain API

  • Full-featured REST API.
  • Designed for experienced programmers.
  • Additional information available here.