Top 6 AI Summary Extensions in 2026

In today’s fast-paced digital world, online reading has become both a necessity and a challenge. With countless articles and news updates posted constantly, readers often feel overwhelmed by information. Scrolling endlessly through long-form content can be time-consuming and mentally exhausting.

To address these significant hurdles, AI-powered summary extensions have emerged as game-changers. This article introduces the top 6 AI summary extensions with their key features, so you can choose the most suitable one according to your needs.

What is an AI Summary Extension and Why Use It

An AI summary extension is a browser-based tool that automatically condenses long online content into short, easy-to-skim summaries. By leveraging advanced natural language processing (NLP) and machine learning algorithms, they can identify key arguments, insights, and takeaways within seconds. In 2026, these tools can be helpful for many readers who want faster, clearer takeaways, so let’s explore the reasons behind their hype.

• Saves Time: AI summary extensions significantly minimize workload by removing the most important points, which are easier to comprehend.
• Reduces Overload: These tools reduce workload by extracting only the most critical points, making it easier to understand.
• Boost Focus and Productivity: When summaries handle initial filtering, you can focus on other essential tasks, such as problem-solving.
• Improved Decision Making: By skimming the entire content, you can make better decisions by quickly identifying relevant facts across multiple sources.
• Easier Content: These tools help readers understand technical or academic material in plain language.

Top 6 AI Summary Extensions

Ready to simplify long reads? These top AI summary extensions can help you get concise insights in seconds:

1. Mapify Extension

You are a university student preparing for final exams using various websites. Online reading can quickly become overwhelming, and jumping between tabs makes it difficult to see how everything connects. Using the Mapify extension is an ideal option, as it lets you convert each article into a quick mind map. This efficient tool leverages ChatGPT and Gemini to deliver seamless webpage summaries.

Mapify can summarize 2 million words of text into concise summaries and mind maps, making them easier to understand. Furthermore, it supports various web formats, including web PDFs, social media posts, images, and more. Overall, it is an efficient way to mind-map summaries instantly without switching tabs, saving your time.

Key Features

• Language Support: This tool lets users choose from 30 languages and multiple AI engines to generate more efficient summaries.
• Compatibility: Easily accessed through browsers like Chrome, Firefox, and Edge to reach a wider audience.
• YouTube Summaries: The Mapify extension also lets you summarize YouTube videos into quick mind maps for easier understanding.

2. ChatGPT

With this extension, you can easily summarize any website or YouTube video to get concise key points without reading everything. ChatGPT extension allows you to ask questions and chat with it about the current page or video content. Moreover, it also enables you to choose between different AI models, and its roadmap includes content chunking for long texts and question templates.

Key Features

• Let you choose between templates for academic, scientific, or journalistic summaries.
• Works by connecting your own OpenAI API key and ensuring data privacy.
• Includes markdown rendering, dark mode, and a clean summary layout.

3. Web Highlight

The Web Highlight AI summary extension can highlight text on any website and provide quick summaries. The highlighted text can be easily retrieved when the page is reloaded. Using the highlighted text, it makes summaries with organized bullet points. Moreover, you can also select smart summaries to capture only the specific text summaries.

Key Features

• Provides the YouTube transcript annotation feature to mark important points.
• Offers Reader’s mode for distraction-free reading and research path flow.
• Enables you to export various formats like PDF, HTML, Markdown, or to the clipboard.

4. Scholarcy

Scholarcy works as a research assistant who converts webpages, documents, and videos into concise summaries. It can extract key findings, analysis, and conclusions separately to save them as organized notes. Users can access its Comparative Analysis feature, which makes it easier to trace arguments. It also integrates with the Scholarcy Library (premium), so you can save, share, annotate, and export your flashcards.

Key Features

• Highlights essential points and automatically generates a background reading list.
• Finds open-access PDFs for cited references from sources like Google Scholar and arXiv.
• Creates interactive “Summary Flashcards” that break a paper into digestible sections.

5. SMMRY

SMMRY's Firefox add-on extension is a very minimal and one-click tool to generate instant summaries. Besides choosing text, users can add a website's URL to extract summaries and key points. This AI summary extension also allows adjusting the number of sentences in the content to easily achieve the required details. Being a free trial extension, it is considered an efficient tool to streamline your workflow.

Key Features

• Offers basic customization options, such as focusing on specific keywords or topics.
• Let you clean the text by removing transition lines and examples from the summary.
• Includes an API through which you can integrate this service into your own app.

6. Sider

Sider is powered by Claude 3.5, Gemini 1.5, DeepSeek, and Llama to create detailed summaries. Users can ask questions across different models to compare answers and improve results. Moreover, it provides effective OCR to scan images and extract summaries and key points. One can even generate bilingual transcripts from webpages and YouTube transcriptions.

Key Features

• Offers advanced tools like AI writer, paraphraser, and outline builder.
• Translate web pages and videos into more than 50 languages.
• Works on almost all operating systems, including Chrome, Edge, and Safari.

Comparison Table

For an at-a-glance overview, the table below compares various AI summary extensions to let you choose the best one:

Extensions	Supported Content Types	Platform	Ease of Use	Customization	Speed	Accuracy	Best For	Additional Features
Mapify (Best choice)	Web, PDFs, YouTube, emails	Chrome, Edge, Firefox	One‑click visual mind map	Editable nodes, layouts, styles	Fast for most content	High on ideas, structure	Every day learning, deep research	Multilingual AI summaries
ChatGPT Summarize	Web, YouTube, PDFs	Chrome	Pop-up anywhere	Fast, depending on the API	High language quality	Web reading	Q/A with any page	Dark mode
Web Highlights	Web, PDFs, YouTube	Chromium + web app	Highlight and AI summary	Page vs Highlight only	Very fast local AI	High on curated text	Note-taking, research flow	Sync and Search library
Scholarcy	Research papers and PDF	Chrome, Firefox	One-click summary card	Detail Level Export	Medium, PDF-centric	Very high for Academia	Literature Review	Open access reference finder
SMMRY	Webpages (tab content)	Firefox add-ons	Single button summary	Sentence count, keywords	Very fast, lightweight	Medium	Quick no‑login summaries	Uses SMMRY web options
Sider	Web, PDFs, images, audio, videos, and chats	Chrome, Edge, Safari, apps	Sidebar pops up anywhere	Model choice, prompts, modes	Fast, parallel model calls	High; multi‑model comparison	Power users, all‑in‑one AI	Group chat with many AIs

How Mapify Goes Beyond Simple Summaries

After examining the tools, let's explore how the Mapify AI summary extension adds extra value beyond basic condensation:  

• Structured Understanding: Mapify breaks content into topics, subtopics, and key points rather than a single block of text. It shows hierarchy and links between ideas so you can quickly grasp supporting details.
• Visual Maps: It converts articles, videos, and PDFs into easy mind maps and lets you zoom in on the details. This visual layout reduces workload and makes it easier to spot patterns and themes.
• Support Long-term Memory: It organizes all the information according to your mind so you can easily recall it. This is ideal for skimming content for exams, revision, and project overview.
• Multiple Content Types: Being an ideal tool, Mapify can easily handle webpages, PDFs, videos, and emails. With this, all content can be gathered in a single mind map, making it easier to understand.

Final Thoughts

Users can now easily summarize their long-form web pages into concise summaries. Using AI summary extensions reduces the lengthy process to a quick grasp of key points. This guide covers the 6 most efficient tools, each with key features tailored to specific needs. Furthermore, we have provided a quick comparison table of these tools to help you choose the most suitable option.

For those seeking an advanced summarization tool, Mapify stands out as the ideal choice. This tool is capable of creating instant mind maps, making it easier to understand and recall. Moreover, it offers advanced features such as URL processing and browser-extension summarization, making it an ideal option.