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Start from $6/month

Second Brain is the only AI content tool that reads and understands TikToks, Instagram Reels, YouTube videos, LinkedIn posts, and podcasts — not just documents.

Most tools stop at PDFs and text. Second Brain understands every piece of content you save. Everything is auto-organized and searchable from day one — no manual tagging required.

ChatGPT forgets everything after your conversation ends — Second Brain remembers permanently.

Every piece of content you save becomes part of your permanent, searchable content library. You can ask questions across your entire library, not just one conversation. And Second Brain can read content types (like TikToks and Reels) that ChatGPT simply cannot access.

Second Brain reads everything (videos, social, docs), auto-organizes with AI, features Visual Boards (a multi-node AI canvas with chat nodes, sources, and Notion-like pages on one infinite workspace), and lets you chat with your entire content library — no other tool does all four.

ChatGPT: Generic assistant — can't read TikToks, Reels, or most social content, and forgets after each chat.

Notion: Great for documents, but limited AI that can't read videos or social content. Requires manual organization.

Canva: Strong for design, but doesn't research or write in your voice — you still bring the ideas and copy.

Castmagic and Opus Clip: Clip and caption video, but won't analyze competitors, brainstorm angles, or repurpose into other formats.

Taplio and Jasper: Generate social copy, but can't actually watch a TikTok or read a brand brief to ground their output.

See all detailed comparisons: /compare

Second Brain supports almost every content type creators work with:

• Short-form video: TikTok, Instagram Reels, YouTube Shorts (with frame-by-frame visual analysis)
• Long-form video: YouTube (transcript by default, optional detailed visual analysis under 30 minutes)
• Social posts: LinkedIn posts and carousels, X/Twitter threads
• Podcasts & audio: Spotify/Apple episodes, voice memos, any audio file (auto-transcribed)
• Documents: PDFs, Word, PowerPoint, Excel, CSV, Markdown, plain text
• Web: Articles, blog posts, any URL
• Google Docs, Slides, Sheets: paste a public sharing link
• Images & screenshots: upload for visual analysis
• Loom recordings: paste the URL
• Bulk YouTube channels: import up to 50 videos from any channel in one go

Just paste a link, upload, or drag-and-drop — we handle the rest.

Yes. Reels, TikToks, and YouTube Shorts get frame-by-frame visual analysis automatically — the AI watches the video, reads on-screen text, picks up what's happening visually, and pairs it with the audio transcript.

For long-form YouTube videos under 30 minutes, you can enable Detailed Visual Analysis on demand — a checkbox appears when you paste the URL.

This is what makes "study this competitor's hook" actually work. Second Brain sees the cut at 0:03, the text overlay, the gesture — not just whatever auto-caption YouTube generated.

Both. Carousels produces a full ready-to-post deck:

• AI-generated images for every slide
• Title + subtitle on each slide
• The post caption
• A relevant hashtag list
• A suggested first comment

Generate from a prompt, from an existing Page/Project/Document, or build slide-by-slide from scratch. Edit any text inline, regenerate individual slides, regenerate the caption with steering, and view earlier versions in the version drawer. Export when ready.

Your copy stays. When you save any social content to Second Brain, it's processed and stored as your content — independent of the original platform.

If the creator deletes the TikTok, the brand pulls the Reel, or YouTube removes the video, your transcript, visual analysis, and every chat you've had with that piece are unaffected. You can still search it, chat with it, and pull insights from it forever.

A normal bookmark folder will never give you that.

Yes — image and short-video generation are built into the chat. Switch the chat input dropdown to Generate Image or Generate Video, describe what you want, and the AI produces it. You can also drop in a reference image to do image-to-image, or animate a still.

Both are available on Pro and Ultimate plans.

Second Brain uses AI to automatically tag, categorize, and connect every piece of content you add — no manual sorting required.

When you add content, the AI automatically:

• Extracts key topics and themes
• Generates smart tags
• Connects it to related content in your library
• Makes it instantly searchable by meaning (not just keywords)

You can also manually organize with Projects and custom tags if you want more control.

Semantic search finds content by meaning, not just exact keyword matches.

For example, you can search "that video about building better habits" and find a TikTok titled "5 Morning Routine Tips" — because the AI understands they're about the same topic. It's like searching with your brain, not a basic search box.

Visual Boards are a multi-node AI canvas — an infinite workspace where you can have multiple AI chat nodes, your saved sources, and Notion-like pages all visible at the same time.

Instead of a single linear chat thread, you open a board and place your content spatially. Add multiple AI chat nodes — each one can explore a different angle or question. Drop in rich pages to write notes, drafts, or plans right alongside your sources and AI conversations. Everything stays on one canvas: your TikToks, PDFs, YouTube videos, AI analysis threads, and working documents — all in front of you at once.

It's a multi-threaded thinking environment. You see connections visually, run parallel AI conversations, and build knowledge — not by scrolling through a single chat, but by working with everything at the same time. It's how your brain actually works.

Pages are rich documents (similar to Notion pages) that live inside your content library and are fully searchable by AI.

• Save AI chat responses with one click
• Add your own briefs, scripts, and drafts
• Insert headings, lists, images, code blocks
• Build up your content over time

Every Page is searchable and can be included in AI chats.

Yes — your data is never used for AI model training, never sold to third parties, and never stored on third-party servers longer than needed for processing.

Second Brain uses a privacy-first architecture. Your second brain is yours alone.

Credits cover the AI processing needed to analyze your content and answer your questions.

The amount used depends on content length and complexity. Most users find the Pro plan covers regular daily use. You can always start with a lower plan and upgrade if needed.

The Chrome Extension lets you save anything while browsing — articles, ChatGPT responses, images, screenshots, entire webpages — with one click.

Content goes straight to your Second Brain, auto-organized and searchable. Never lose interesting content you find online.