# Glasp vs Summary Box

Glasp records 889,564 monthly visits with -14.1% month-over-month growth and Freemium pricing. Summary Box records 0 monthly visits with — growth and Free pricing.

| Metric | [Glasp](https://openaitools.app/tool/glasp) | [Summary Box](https://openaitools.app/tool/summary-box) |
| :--- | :--- | :--- |
| Website URL | https://glasp.co | https://chromewebstore.google.com/detail/summary-box/jcbfebakonmpfdgeflcomgpgefmbhlck |
| Categories | AI Research Tool, AI Agent, AI Summarizer, AI Youtube Summary | AI Summarizer, AI Copilot, AI Article Summarizer, AI Writing Assistants |
| Pricing Model | Freemium | Free |
| Monthly Visits | 889,564 | 0 |
| MoM Growth Rate | -14.1% | — |
| Primary Market | United States | Global |
| Direct Visits | 400,603 | 0 |
| Review Score | 4.2 | 3.9 |
| Saved Count | 12 | 1 |
| Supported Platforms | Website | Browser Extension |

## Glasp

Glasp started from a simple observation: most people highlight things they never look at again. Instead of trapping highlights inside one app, Glasp makes them social. Install the extension, highlight a paragraph on any site or a line in a YouTube transcript, and it lands in your Glasp profile where you can add notes and tags. Because highlights are public by default unless you make them private, a feed of what like-minded people are reading and marking emerges — you can follow other users, see what resonates, and discover sources you would not have found on your own.

Your library becomes the raw material for AI features. Glasp can summarize a long article, a PDF or a YouTube video so you can decide whether it deserves reading, and it can organize what you have already saved into themes. The standout feature is the AI clone: by training on your own accumulated highlights and notes, it produces something that answers in the shape of your interests and reading history. There is also a digital-legacy angle, letting you hand your accumulated knowledge to someone else.

Glasp is free to start, with paid tiers for heavier use and greater AI capacity. Its real niche is learners, researchers, students and content curators who treat annotation as a public, collaborative practice rather than a private bookmark folder — and who want their saved material to do work for them later instead of gathering dust.

**Pricing & Plans:** Freemium. A free tier covers the core highlighting, saving and sharing features with limited AI usage; paid plans add higher AI limits and additional capacity. Check glasp.co for current tier pricing, as it is not published in our listing data.

- **Web and YouTube highlighting:** Mark up passages on any website or lines in a YouTube transcript from a browser extension, then keep them in one searchable library.
- **Social learning feed:** Highlights are shared publicly by default, so you can follow other users, react to their picks and discover sources through people with similar interests.
- **AI summarization:** Generate summaries of long articles, PDFs and YouTube videos to judge relevance fast and to digest what you have already saved.
- **Your own AI clone:** Trained on your accumulated highlights and notes, the AI clone answers in the shape of your reading history and areas of interest.
- **Notes, tags and Kindle import:** Add your own commentary and tags to every highlight, and bring in Kindle highlights so your reading lives in one place.

**Strengths:** Turns throwaway highlighting into a genuinely reusable, searchable library; The social feed surfaces sources through people rather than an opaque algorithm; AI summarization and the AI clone are built on your own saved material, not generic content; Works across web pages, YouTube, PDFs and Kindle imports in one place

**Limitations:** Public-by-default sharing is not for everyone; private lives behind a toggle you have to remember; The AI clone only becomes useful after you have accumulated a real body of highlights; Free-tier AI usage is limited, so heavy summarization pushes you to a paid plan

[Profile (Markdown)](https://openaitools.app/tool/glasp.md)

## Summary Box

Summary Box is a browser extension built around a simple premise: more is published every day than anyone could read, so something else should do the reading. It installs into Chrome and sits on top of the feeds, sites and pages you already visit, such as YouTube, X, Reddit and the news you follow.

The extension runs what it calls an agent. Rather than summarizing only the page in front of you, that agent goes through your sources, opens the articles, videos and threads, reads the actual content, weighs it against what you already know, and pulls out the handful of items worth your attention. Everything it surfaces lands in one consolidated view, so you check a single place instead of a dozen feeds.

A distinctive part of the concept is duplication control: Summary Box says it flags what is genuinely new and cuts what you already know, so you are not re-reading the same story from multiple outlets. The more it reads for you, the less you have to read yourself. The extension is listed as version 1.0.0, updated in July 2026, with a publisher identifier and EU trader disclosure on the Chrome Web Store.

**Pricing & Plans:** Listed as free on the Chrome Web Store; no paid tiers are shown in the extension listing.

- **Single consolidated feed:** Instead of checking a dozen separate feeds, the agent brings the best items from each source into one consolidated view.
- **Reads beyond headlines:** Summary Box opens the underlying articles, videos and threads and reads the actual content, not just the headline.
- **Condenses to what matters:** Content is condensed down to the few things worth your time, filtered against what it has learned about your interests.
- **Flags new versus known:** The agent tells you what is genuinely new and cuts items you have effectively already seen, so you are not reading the same story twice.
- **Learns your interests automatically:** It works on the feeds, sites and pages you already visit, including YouTube, X, Reddit and news sources, without a manual setup form.

**Strengths:** Consolidates many feeds into a single view instead of requiring tab-by-tab checking; Reads full article, video and thread content rather than relying on headlines; Flags new items and suppresses material you have already seen; Learns your interests from normal browsing with no setup forms

[Profile (Markdown)](https://openaitools.app/tool/summary-box.md)

## Frequently Asked Questions

### How do Glasp and Summary Box compare in monthly traffic?

Glasp has 889,564 monthly visits, while Summary Box has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Glasp has a month-over-month growth rate of -14.1%; Summary Box has —.

### How does pricing compare?

Glasp: Freemium. Freemium. A free tier covers the core highlighting, saving and sharing features with limited AI usage; paid plans add higher AI limits and additional capacity. Check glasp.co for current tier pricing, as it is not published in our listing data. Summary Box: Free. Listed as free on the Chrome Web Store; no paid tiers are shown in the extension listing.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Notion](https://openaitools.app/tool/t) | 173,441,670 | +0.1% | Freemium | The AI workspace where teams and agents get work done together | [.md](https://openaitools.app/tool/t.md) |
| 2 | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | -3.7% | Freemium | Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models. | [.md](https://openaitools.app/tool/perplexity-ai.md) |
| 3 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | All-in-one AI assistant across web, browser, desktop and mobile | [.md](https://openaitools.app/tool/monica-ai.md) |
| 4 | [SciSpace](https://openaitools.app/tool/scispace) | 4,464,111 | +8.6% | Freemium | Excels at deep scientific literature reading and analysis, whereas Glasp targets general web and video content curation. | [.md](https://openaitools.app/tool/scispace.md) |
| 5 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | AI sidebar and browser agent for reading, writing and research | [.md](https://openaitools.app/tool/sider.md) |
| 6 | [Merlin AI](https://openaitools.app/tool/merlin-ai-plugins) | 1,382,634 | +13.1% | Freemium | One AI assistant that plugs ChatGPT, Claude and Gemini into every tab | [.md](https://openaitools.app/tool/merlin-ai-plugins.md) |
| 7 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | One browser agent that combines every major AI model with web automation | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 8 | [Summarizer.org](https://openaitools.app/tool/summarizer-org) | 398,509 | +1.3% | Freemium | Free AI Summarizer for text, articles, URLs and images | [.md](https://openaitools.app/tool/summarizer-org.md) |
| 9 | [Scholarcy](https://openaitools.app/tool/scholarcy) | 195,058 | +4.6% | Freemium | Converts academic papers into structured summary flashcards, but lacks Glasp's broad web article and YouTube highlighting capabilities. | [.md](https://openaitools.app/tool/scholarcy.md) |
| 10 | [Glarity](https://openaitools.app/tool/glarity-summarize-google-and-youtube) | 188,823 | -49.6% | Freemium | Summarize YouTube, Google, and any page with AI — free in your browser | [.md](https://openaitools.app/tool/glarity-summarize-google-and-youtube.md) |

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Source: https://openaitools.app/compare/glasp-vs-summary-box

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