“Finally, all my ChatGPT research sessions are searchable. The rich content capture means code blocks actually look like code blocks.”
Sarah Chen
ML Engineer, Stripe
Now supporting 25+ AI platforms
Your AI Conversations
Deserve a Second Brain
Save conversations from ChatGPT, Claude, Gemini, and 22 more platforms to NotebookLM with one click. Rich content capture, offline support, and full-text search.
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Works With Your Favorite Platforms
25+ platforms and growing
AI Assistants
ChatGPTClaudeGeminiDeepSeekPerplexityGrokMistralHuggingChatGensparkKimiOpenEvidence
Social & Content
LinkedInRedditX / TwitterYouTubeMediumSubstackHacker News
Developer & Research
GitHubStack OverflowArXivDev.toNotionGoogle Docs
Capture in 3 Simple Steps
01
Visit any supported platform
Browse ChatGPT, Claude, YouTube, or any of our 25+ supported sites
02
Click the Save button
A NoteSync Pro button appears automatically. Click it to capture with rich formatting
03
Find it instantly
Full-text search across all your captures. Filter by platform, date, or tags
Everything You Need to Capture Knowledge
From AI conversations to web articles, NoteSync Pro captures it all with rich formatting, offline support, and powerful search.
25+ Platform Support
ChatGPT, Claude, Gemini, DeepSeek, YouTube, Medium, Reddit, and more.
Rich Content Capture
Code blocks, math equations, images, and tables preserved perfectly.
Full-Text Search
Search across all your captures, not just titles.
Offline-First
Captures queue locally and sync when you’re back online.
Keyboard Shortcuts
Ctrl+Shift+S to capture, fully customizable.
Web Clipper
Right-click any text on any page to save it.
AI Auto-Tagging
Content automatically tagged and summarized.
Prompt Library
Save and reuse your best prompts with folders and tags.
Encrypted Storage
AES-256 encrypted local storage, cleared on sign-out.
Automation Engine
Create trigger-action rules to auto-capture, auto-tag, and route content to notebooks.
SM-2 Spaced Repetition
Science-backed spaced repetition algorithm schedules reviews at optimal intervals.
12 AI Study Formats
Flashcards, quizzes, mind maps, timelines, Cornell notes, and more generated from your captures.
Multi-Tab Synthesis
Combine content across multiple open tabs into a single unified notebook entry.
Daily Briefings
Get a personalized daily summary of your captures, review schedule, and trending topics.
Command Palette (Cmd+K)
Access any feature instantly with a powerful command palette. Search, capture, navigate.
Templates & /Slash Commands
Pre-built templates and /slash commands for meeting notes, research, code reviews, and more.
Compare & Merge Notebooks
Diff two notebooks side-by-side and merge changes with conflict resolution.
Export Preview
Preview exports in Markdown, PDF, and HTML before saving. WYSIWYG export experience.
Why Teams Switch from Kortex
See how NoteSync Pro compares on the features that matter.
Feature
Kortex
NoteSync Pro
Platforms
~13 (plaintext)
25+
Content capture
Plain text only
Rich (code, math, images)
Search
Titles only
Full-text across content
Offline support
None
Full offline queue
Keyboard shortcuts
None
Configurable
Web clipper
Basic context menu
Right-click any text
Local encryption
None (plaintext)
AES-256
Permissions
Wildcard + debugger
Minimal, explicit
Collaboration
None
Share notebooks
AI features
NotebookLM-only (no auto-tag)
Auto-tag + summarize
Version history
None
Full history + restore
Meeting transcription
None
Google Meet + any mic
Knowledge graph
None
Interactive entity map
Tab chat
None
AI Q&A on any page
Study tools
None
Flashcards, quizzes, mind maps
Bundle size
11MB
<1MB
Automation engine
None
Trigger-action rules
Spaced repetition
None
SM-2 algorithm
Multi-tab synthesis
None
Cross-tab merge
Templates
None
/Slash commands + library
Loved by Knowledge Workers
Simple, Transparent Pricing
Start free and upgrade as you grow.
Free
$0/ forever
Perfect for getting started
- 15 captures per day
- 25+ platform buttons
- Full-text search
- Local storage
Most Popular
Pro
$4/ per month
For power users and researchers
- Unlimited captures & exports
- Cloud sync across devices
- AI auto-tagging & summaries
- Collaboration & sharing
- Version history
- Priority support
Lifetime
$79/ one-time
Pay once, use forever
- Everything in Pro forever
- All future features included
- Early access to new platforms
- Lifetime priority support
Start Building Your Second Brain Today
Free forever. No credit card required. Upgrade anytime.