Hands-on tested · Updated 2026
Completely free - no payment needed.
Where it falls short
ChatGPT Plus Feature Limitations
Merlin is an extension tool based on ChatGPT Plus, designed to help users utilize the ChatGPT Plus features on all websites. The following is a deep review of Merlin. Overview and Background: Merlin is a free browser extension that allows users to use ChatGPT Plus on any website. The background of this tool is to utilize the powerful AI technology of OpenAI to enhance the online creation experience of users. Core Features: 1. ChatGPT Plus Integration: Merlin allows users to...
From registration to actual use - step by step
Merlin is a browser extension. Press Cmd/Ctrl+M on any webpage to invoke the AI assistant for summarization, rewriting, translation, and Q&A. Install the Chrome or Edge extension from the website.
Go to InstallThe free version offers 102 queries per day, sufficient for daily use. Heavy users can upgrade to Pro.
On news articles, blogs, or Reddit posts, press Cmd/Ctrl+M and select "Summarize" for one-click summaries. Select text for AI to rewrite, translate, or explain.
In Gmail, pressing Cmd/Ctrl+M automatically loads email writing mode, generating more professional emails than the general mode.
On YouTube video pages, invoke Merlin to auto-generate video summaries and chapters. On PDF online preview pages, ask questions about PDF content.
For long YouTube tutorials, use Merlin to generate chapter summaries first and skip unimportant parts to save time.
Pro supports generating charts, tables, and mind maps based on webpage content. Send current webpage content to Notion, Google Docs, etc. for saving.
When researching a topic, send summaries from multiple webpages to the same Notion document to quickly build a knowledge base.
💡 Merlin is a software tool, not an AI model. To experience its full features, please visit the official website. You can also add it to your workflow below.
Merlin is very suitable for users who need online writing and editing, such as content creators, students, and business professionals. It can be used for writing blog posts, editing emails, creating social media content, conducting online learning and research, etc.
| Plan | Price | Best For |
|---|---|---|
| 免费版 | $0 | ChatGPT Plus 集成, 基础写作功能 |
Prices are estimates. Visit website for current pricing.
Merlin is a free tool that is sufficient for basic writing needs. For users who need more advanced features, they can consider purchasing the ChatGPT Plus subscription service. There are no hidden costs, and monthly and annual payment discounts are supported.
Recommended to use Merlin. It is a free and practical tool for users who need online writing and editing, effectively improving writing efficiency.
Content creators: because Merlin helps them use ChatGPT Plus for writing and editing on any website, improving their creative efficiency. Students: because Merlin assists them in online learning and research. Business professionals: because Merlin helps them write business reports and emails.
| Tool | Rating | Pricing | Best For |
|---|---|---|---|
| Merlin ★ | 0/5 | Free | Writing |
Yes, Merlin is a completely free tool.
Merlin supports all mainstream browsers, including Chrome, Firefox, and Safari.
Merlin is a browser extension that allows users to use ChatGPT Plus on any website. ChatGPT Plus is an AI conversational assistant.
Yes, Merlin is suitable for students and can help them with online learning and research.
Yes, Merlin is free and does not require a trial.
Merlin is safe and will not leak user data.
For basic writing needs, Merlin is worth using. For more advanced features, consider the ChatGPT Plus subscription service.
You can cancel the subscription through the browser extension settings.
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