DuckDuckGPT
Add AI chat & search summaries to DuckDuckGo for free, powered by latest LLMs.
DuckDuckGPT delivers a no-cost, privacy-friendly AI overlay for DuckDuckGo power users. Its open-source nature and userscript approach make it leaner than typical extensions. Must-try if you live in DuckDuckGo and want instant AI summaries without switching search engines.
- Privacy-conscious searchers wanting AI help without tracking
- Power users who frequently use DuckDuckGo
- Developers and researchers needing quick AI summaries
- Users who prefer open-source tools over proprietary AI extensions
- Users who need a standalone AI chatbot (this is a DuckDuckGo overlay only)
- Those requiring native mobile apps (userscripts on mobile can be finicky)
- Enterprise teams needing centralized management
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In short
DuckDuckGPT — Add AI chat & search summaries to DuckDuckGo for free, powered by latest LLMs. Best for Privacy-conscious searchers wanting AI help without tracking, Power users who frequently use DuckDuckGo, Developers and researchers needing quick AI summaries. Free to use.
Viability Score
How likely is DuckDuckGPT 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 →Key Features
- AI chat alongside DuckDuckGo search results
- Search summaries generated by LLMs
- Model selection dropdown (GPT-4o, Claude, Gemini, etc.)
- Proxy Mode (GPT-4o without ChatGPT account)
- No account or API key required
- Userscript manager installation (Tampermonkey, Violentmonkey, etc.)
- Open source codebase on GitHub
- Lightweight – no extension permissions needed
- Respects privacy (no tracking)
- Streaming mode (not supported in Violentmonkey/OrangeMonkey)
- Supports mobile via ScriptCat or Userscripts
- Customizable AI response behavior
- Compatible with Chrome, Firefox, Edge, Safari, Opera, QQ, Mises, Lemur, Quetta, Orion
About DuckDuckGPT
DuckDuckGPT is a free, open-source userscript that overlays AI chat and search summaries directly onto DuckDuckGo results pages. It works with multiple models including GPT-4o, Claude, and Gemini, accessible via a dropdown selector. The tool is installed via a userscript manager (Tampermonkey, Violentmonkey, ScriptCat, Userscripts) and requires no account or API key. It offers a Proxy Mode that uses GPT-4o without a ChatGPT account, and supports streaming (except on Violentmonkey/OrangeMonkey). Designed for privacy-conscious users, it respects user tracking and is fully open source under MIT license. Compared to extensions like Perplexity, DuckDuckGPT is lighter and more transparent, but it is not a standalone chatbot—it augments DuckDuckGo only.
Behind the Verdict
Pick DuckDuckGPT when you want AI answers woven into your existing DuckDuckGo workflow without paying a cent. It's great for researchers, devs, and privacy advocates who prefer open-source over proprietary AI search. The Proxy Mode is a standout—it returns GPT-4o responses without needing a ChatGPT account. Pass if you need a full-fledged chatbot (try ChatGPT or Claude directly), or if you're not comfortable with userscript manager setup. Compared to Perplexity, DuckDuckGPT lacks citations and follow-up question support, but it's lighter and more customizable. One caveat: streaming doesn't work on Violentmonkey or OrangeMonkey. For mobile, userscripts on Safari/iOS can be finicky. Overall, a brilliant augmentation for DuckDuckGo die-hards.
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Use Cases
- Get instant AI explanations for search queries without leaving DuckDuckGo.
- Summarize web pages or topics directly in search results using your preferred LLM.
- Compare answers from different AI models (GPT vs Claude vs Gemini) side by side.
- Write code snippets or draft content using AI while browsing search results.
- Ask follow-up questions via chat without navigating to a separate AI interface.
- Enhance research productivity by combining traditional search with AI summaries.
Models Under the Hood
Limitations
- DuckDuckGPT requires a userscript manager, which may be an extra step for casual users.
- The AI responses depend on the backend model availability and may occasionally be slow or unavailable.
- It does not work on non-DuckDuckGo search engines, and mobile support via userscripts can be less reliable than desktop.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Integrations
Resources & Guides
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