
AI-powered second brain for note-taking, content creation, and knowledge management.
By Tanmay Verma, Founder · Last verified 03 Jul 2026
In short
Kortex — AI-powered second brain for note-taking, content creation, and knowledge management. Best for Minimalist writers and bloggers, Content creators (social posts, video scripts), Note-takers building a second brain. Free to start; paid plans from $17.5021/mo.
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Kortex excels at connecting ideas and reducing friction for writers, but its true potential is limited by generous free tier caps and the ongoing transition to Eden. It's a promising tool for solo creators who value simplicity and AI-assisted writing.
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Last verified: July 2026
Across the latest 6 updates: 1 feature update, 3 launches, 1 pricing change and 1 news mention.
How Eden changes things and how to transfer your workspace.
Our most powerful release to date.
Changes, capabilities, and use cases of Kortex AI.
Resources for writing AI prompts.
The future of creative work.
Upcoming releases and price increase for kAI, offline mode, mobile, and chats.
How likely is Kortex to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
Last calculated: July 2026
How we score →Kortex is a digital workspace designed to unify note-taking, content creation, and knowledge management into a single, streamlined workflow. It caters to minimalist writers, creators, and note-takers who want to capture ideas quickly and write without distraction. The tool features an AI assistant called kAI that can summarize, advise, research, or create study plans from various sources like YouTube videos and highlights. Its interconnected writing system helps users overcome writer's block by surfacing relevant ideas from their notes, captures, and highlights in real time. Kortex offers a simple capture-and-create workflow: users capture ideas to specific notes, then use kAI to synthesize them into polished documents. The text editor is optimized for smooth writing, with a pane navigation system for referencing documents, highlights, and captures simultaneously. Unique features like Kortex Elements provide templates and outlines to guide writing, while advanced search lets users find ideas by tags, related words, document contents, captures, and highlights. Kortex also supports export as markdown, document sharing, collaboration across workspaces, and integration with Readwise for importing external highlights. The tool is available on web and desktop apps, with offline mode coming soon. Currently, Kortex is transitioning to a new product called Eden, which will offer spatial AI and auto-tagging.
Kortex is a refreshingly focused tool for writers and creators who want a second brain that actually helps them write, not just store notes. The interconnected writing system is its standout feature — it surfaces relevant ideas from your captures and highlights as you write, effectively killing writer's block. The AI assistant kAI is useful for summaries and research, but the free tier's 15 requests per month is tight. For $10/month (Kore plan), you get unlimited base AI and 250 voice transcriptions, which is reasonable for solo creators. However, Kortex's future is uncertain: the company is transitioning to a new product called Eden, and Kortex features may eventually be absorbed. If you're looking for a stable long-term tool, this might give you pause. The tool also lacks advanced collaboration features, so teams should look elsewhere. Compared to alternatives like Notion or Obsidian, Kortex offers a simpler, more purpose-built writing environment — but those tools have larger ecosystems and more mature teams features. For now, Kortex is best for individual writers who want a clean, AI-enhanced workspace and can accept the impending shift to Eden.
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Helpful link from kortex.co
Helpful link from kortex.co
Helpful link from kortex.co
Helpful link from kortex.co
Helpful link from kortex.co
Helpful link from kortex.co
Helpful link from kortex.co
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