What is Merlin AI?
Merlin AI is listed under Browser Extensions & Copilots, in the AI Chat & Assistants category on Flocci AI Tools. Works on any website. It is freemium — a usable free tier with paid plans above it, and it lives at getmerlin.in.
What Merlin AI does
- Works on any website
- Summarize YouTube, articles and PDFs
- Multiple frontier models in one place
- Social-media reply generator
Merlin AI — straight answers
Is Merlin AI free?
Merlin AI is freemium: there is a free tier you can work in and paid plans above it. It is one of 426 freemium tools in the catalog, all labelled the same way so you are never surprised by a paywall.
Can I use Merlin AI in a browser, or is there an app?
Merlin AI works in a normal browser tab with no install. It is available on a Chrome extension, the web, iOS and Android. You can sign in with a Google account.
What can Merlin AI do?
Merlin AI does 4 things the catalog singles out: Works on any website; summarize youtube, articles and pdfs; multiple frontier models in one place; social-media reply generator.
What is the best free alternative to Merlin AI?
Firefox Smart Window is the closest free alternative: it sits in the same Browser Extensions & Copilots sub-category and is free. Gemini in Chrome, Opera Browser AI (Aria) and Page Assist also start free. The full list is on the alternatives page.
See the full list →Merlin AI alternatives
Compare all alternatives →Sider
Browser Extensions & Copilots
- ChatGPT/Claude/Gemini in a browser sidebar
- Summarize any page, PDF or YouTube video
- Translate, rewrite and explain selections
- Works across every website
Monica
Browser Extensions & Copilots
- All-in-one AI copilot for the browser
- Access to GPT, Claude & Gemini
- Writing, translation and search tools
- Desktop app and memo features
MaxAI.me
Browser Extensions & Copilots
- One-click rewrite, reply and summarize
- Chat with any page or image
- Instant translation and grammar fixes
- Prompt library built in
Harpa AI
Browser Extensions & Copilots
- AI web automation and monitoring
- Track prices and page changes
- Scrape and summarize sites
- Custom command workflows
Brave Leo
Browser Extensions & Copilots
- Built directly into the Brave browser sidebar — no separate site, no account, no signup required for free tier
- Access to Claude, Mixtral and Llama models without opening a separate chatbot site
- Conversations never stored on Brave's servers and not used for model training
Dia
Browser Extensions & Copilots
- AI-native Chromium browser (from the makers of Arc) with AI chat built into every tab, not bolted on as a sidebar
- Free for light AI use; a Pro tier lifts the usage caps
- Now backed by Atlassian after its 2026 acquisition of The Browser Company