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Free forever MIT License
Transform AI conversations
into structured knowledge.
🔒 Local. No account. Your data stays on your machine.
Capture ideas on the spot, continue them across platforms and build a knowledge system that never gets lost — all inside your browser, no server.
⚡ Every idea is worth saving
No account required
Chrome · Firefox · Edge · Brave
7 AI platforms
🔍 Search captures... Filters
● All ChatGPT Claude Gemini
24 captures + New
Claude 2 min
Refactor auth with stateless JWT
Use middleware composition + lazy token validation...
backend jwt
💉 3x🔗 src📎📝
ChatGPT 1h
CSS Grid: auto-fill vs auto-fit
auto-fill keeps ghost columns, auto-fit collapses...
css layout
💉 1x🔗 src📎📝
Gemini yesterday
Partial index on Postgres without downtime
CREATE INDEX CONCURRENTLY doesn't lock. EXPLAIN before and after...
sql perf
💉 5x🔗 src📎📝
Claude 2 days
useReducer for complex state
Separate actions by domain. Combine with useContext...
Have you ever lost this?
It happens all the time. The AI doesn't organize this for you.
💬
Infinite scroll chasing a response that vanished You know it was there. You scroll and scroll. It's gone.
🔍
A perfect answer that vanished You remember Claude explained it really well. Which conversation?
🔗
Ideas scattered across 4 different platforms One thing in ChatGPT, another in Gemini, another in Claude. All disconnected.
⚡ NODUS fixes this — no server, no account, right now
See it in action
One click. Idea saved.
No copy, no paste, no losing the thread.
The difference in practice
Without NODUS vs With NODUS
✕ Without NODUS
- Chats lost with no cross-platform search
- Ideas disconnected across ChatGPT, Claude, Gemini
- Infinite scroll hunting for an answer that's gone
- Context starts from scratch every conversation
- No organized personal history
✓ With NODUS
- Ideas saved with one click, with tag and note
- Unified search across all platforms
- Chains linking conversations from different AIs
- Accumulated, reusable and injectable knowledge
- 100% local — nothing leaves your machine
How it works
Three steps. That's it.
NODUS stays invisible in your browser and activates only when you want. No copy, no paste, no friction.
Step 01
🧠
Open any AI
NODUS activates on 7 platforms as soon as you open them. No per-site setup — works right away.
ChatGPT Claude Gemini Perplexity Copilot Grok DeepSeek
Step 02
💾
Click Save or Quick
A pair of floating buttons appears on each response. Save goes to your queue. Quick captures instantly, no screen.
Claude: Here's a cleaner approach using middleware composition. First, extract the validation logic...
Step 03
📚
Continue ideas in the dashboard
Open the NODUS panel to add tags, create chains, search across platforms and inject knowledge back into any AI.
tags chains unified search inject
Real privacy
Your data stays with you.
No account. No server. No company with access to your conversations.
Everything on your device
Your captures are saved directly on your computer — not on any server, ours or third-party.
No account, no tracking
We don't ask for email, don't build a profile, don't monitor what you save. It's an extension, not a service.
You control everything
Export, delete or move your data whenever you want. Nothing gets locked in — it's your history, your rules.
Open source and verifiable
NODUS is open source. No need to take our word for it — the code is on GitHub for anyone to check.
📎
Connect ideas from different platforms
One response from ChatGPT, another from Claude, another from Gemini — all in the same chain.
🗓️
Build over time
Add new nodes whenever you want. A chain can grow over days, weeks, entire projects.
💉
Inject back into any AI
Select a chain and send the full context to continue the conversation where you left off.
📤
Export whenever you want
Export the chain as structured text to document, share or archive.
Real usage examples
💻 SOFTWARE DEVELOPMENT
ChatGPTInitial system architecture
→
ClaudeRefinement and code review
→
GeminiTest cases and edge cases
→
NODUSComplete chain ✓
✍️ WRITING & CONTENT
PerplexityResearch and sources on the topic
→
ClaudeStructure and main argument
→
ChatGPTTone review and variations
→
NODUSReady to publish ✓
🔬 RESEARCH & ANALYSIS
PerplexityInitial market overview
→
GeminiCompetitor analysis
→
ClaudeSynthesis and conclusions
→
NODUSStructured report ✓
How it appears in the panel
🔗 Auth Refactor 4 nodes
Pros and cons: JWT vs session-based auth
JWTs are stateless and scale horizontally, but revocation is hard without a blocklist. Sessions require server-side state but allow immediate invalidation.
Unit tests for the auth middleware
Use Jest with custom matchers for auth errors. Mock the token validator at the module boundary and test each middleware in isolation.
Edge cases to test before going to production
Expired token during a long request, forced revocation on password change, multiple active sessions and token reuse attempts after logout.
Made for who
NODUS is ideal for you if you...
- use AI every day for work
- build, write or research with AI
- have already lost a great idea in the middle of a chat
- use more than one AI platform and want to connect everything
- don't want your data on any server
Pricing
Free forever. Upgrade when you're ready.
Start using NODUS today — no credit card. PRO unlocks the full power with a 14-day free trial.
Free
$0
forever, no credit card
- ✓ Save & organize captures
- ✓ Full-text search
- ✓ Export DOCX & HTML
- ✓ All 7 AI platforms
- ✓ 100% local — no cloud
PRO Monthly
$4.50
per month
- ★ Everything in Free
- ★ 6 custom queues
- ★ Unlimited Chains
- ★ Auto capture
- ★ Priority support
SAVE 44%
PRO Annual
$30
per year
Save $24/year vs monthly
- ★ Everything in PRO Monthly
- ★ Best value
- ★ ~$2.50/month billed yearly
🎉 14-day free trial · Cancel anytime · No credit card to start
| Feature | Free | PRO |
|---|---|---|
| Save + Quick capture buttons | ✓ | ✓ |
| Dashboard (cards, tags, notes, search) | ✓ | ✓ |
| Queues | 3 queues | 6 queues |
| Unlimited chains | ✓ | ✓ |
| Full Chat Capture | ✓ | ✓ |
| Chain export | TXT only | TXT + HTML + DOCX + MD |
| Projects | Up to 3 | Unlimited |
| Inject content into any AI | ✓ | ✓ |
| Attachments | ✓ | ✓ |
| Interface in your native language | ✓ | ✓ |
| Encrypted backup (AES-256-GCM) | — | ✓ |
| Auto Capture (REC button) | — | ✓ |
Frequently asked questions
Questions & answers
The most common questions about NODUS — answered in seconds.
Is NODUS free?
Yes, the core features are free forever. Save, organize, search and export your captures without paying anything. The PRO plan unlocks additional queues, unlimited Chains and advanced export.
How do I save a ChatGPT conversation?
Install NODUS and a floating button appears on all supported platforms. Click Save to capture the response into your local panel — no copy and paste, no account required.
Does it work with Claude, Gemini and other AIs?
NODUS supports 7 platforms: ChatGPT, Claude, Gemini, Perplexity, Copilot, Grok and DeepSeek. The same button appears on all of them — everything goes into a single unified panel.
Is my data private?
Nothing leaves your device. NODUS stores everything in your browser's local storage — no own server, no account, no cloud sync.
Which browsers are supported?
NODUS works on Chrome, Firefox, Edge and Brave. Any Chromium-based browser works automatically. Install once, works across all AI platforms.
Can I export my captures?
Yes. NODUS exports in HTML, Markdown and DOC (Word). With Chains, export multiple captures together as a structured document.
How do Chains work?
Chains connect captures from different conversations — from different platforms, on different dates — into a logical sequence. A thread of reasoning that spans your entire AI history.
If I uninstall, do I lose everything?
Before uninstalling, use the full export to back up all your captures as JSON. Data lives in local storage — uninstalling clears that storage.
See all frequently asked questions →
Installation, plans, privacy, export and much more
In practice
See it working
Real screenshots of NODUS running inside ChatGPT and other platforms — no mockups.