# Glasp vs Roten.X DevTool

Glasp records 889,564 monthly visits with -14.1% month-over-month growth and Freemium pricing. Roten.X DevTool records 0 monthly visits with — growth and Freemium pricing.

| Metric | [Glasp](https://openaitools.app/tool/glasp) | [Roten.X DevTool](https://openaitools.app/tool/roten-x-devtool) |
| :--- | :--- | :--- |
| Website URL | https://glasp.co | https://chromewebstore.google.com/detail/rotenx-devtool/jcfiajnlfhplglbcpegfebokhhpladne |
| Categories | AI Research Tool, AI Agent, AI Summarizer, AI Youtube Summary | AI Homework Helper, AI Notes Generator, AI Video Summarizer |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 889,564 | 0 |
| MoM Growth Rate | -14.1% | — |
| Primary Market | United States | Global |
| Direct Visits | 400,603 | 0 |
| Review Score | 4.2 | 4 |
| Saved Count | 12 | 0 |
| 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)

## Roten.X DevTool

Roten.X DevTool is distributed as a Chrome extension aimed at students, self-learners and researchers who spend hours inside recorded lectures and long-form articles. Instead of juggling notebooks, screenshots and separate summarizers, it layers a study workspace on top of the page you are already reading or watching. The extension combines three jobs in one surface: writing notes, capturing visual references, and using AI to explain material that is too dense to absorb at playback speed.

The workflow is deliberately lightweight. You open a supported video, start taking timestamped notes as the lecturer speaks, and mark the moments you know you will need again during revision. When a section is hard to follow, the AI simplifies it into shorter language and you can ask direct questions about the content without switching tabs. Screenshots with annotations cover diagrams and whiteboards, while article pages support highlighting of the paragraphs worth revisiting.

Everything collects into one notes library, so revision is a matter of browsing a single organised space rather than reconstructing context from scattered screenshots and half-finished documents. The extension is a small, independent project by an individual developer, last updated in June 2024, and is best treated as a focused study aid rather than a full learning-management platform.

**Pricing & Plans:** Listed on the Chrome Web Store as a free extension, with the developer describing it as a study tool that anyone can add in one click. The product is classified as freemium, so advanced capabilities may sit behind an optional paid tier, but the listing itself publishes no plan names or dollar amounts — check inside the extension after installing for current upgrade options.

- **Timestamped notes on video lectures:** While a lecture plays, Roten.X DevTool records structured, time-linked notes so you can jump back to the exact moment a concept was explained.
- **AI breakdown of dense content:** Long or jargon-heavy videos get rephrased into short, readable explanations, surfacing the arguments and definitions that matter for an exam or assignment.
- **Key-point bookmarks and markers:** Bookmark and highlight the important moments of a video, then return to them instantly instead of scrubbing through the whole timeline again.
- **Screenshot capture with annotation:** Capture diagrams, slides and equations straight from the page, annotate them, and store them alongside your written notes.
- **Ask-the-video Q&A:** An AI assistant answers questions about the video you are currently watching, so you can clear up a confusing section without leaving the page.
- **Unified notes library:** Notes, screenshots, highlights and bookmarks land in one library, which keeps a whole course or article backlog in a single searchable place.

**Strengths:** Installs in one click from the Chrome Web Store with no setup; Combines note-taking, screenshots and AI explanations in a single overlay; Timestamped notes make it fast to jump back to the exact explanation you need; The ask-the-video question box removes the need to hunt for answers elsewhere

**Limitations:** Small user base and only a handful of reviews, so community support is limited; Last update was in June 2024, so feature development appears slow; Requires access to user activity and website content, which may concern privacy-sensitive users; Locked to Chrome-based browsers and primarily oriented around YouTube-style video pages

[Profile (Markdown)](https://openaitools.app/tool/roten-x-devtool.md)

## Frequently Asked Questions

### How do Glasp and Roten.X DevTool compare in monthly traffic?

Glasp has 889,564 monthly visits, while Roten.X DevTool 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%; Roten.X DevTool 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. Roten.X DevTool: Freemium. Listed on the Chrome Web Store as a free extension, with the developer describing it as a study tool that anyone can add in one click. The product is classified as freemium, so advanced capabilities may sit behind an optional paid tier, but the listing itself publishes no plan names or dollar amounts — check inside the extension after installing for current upgrade options.

## 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 | [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) |
| 4 | [Knowt](https://openaitools.app/tool/knowt-com) | 4,183,953 | +5.4% | Free | Free AI flashcard and study tools for students | [.md](https://openaitools.app/tool/knowt-com.md) |
| 5 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | Offers a broader multi-model sidebar for quick page summarization, but lacks Glasp's community-driven public highlighting and curation. | [.md](https://openaitools.app/tool/sider.md) |
| 6 | [Merlin AI](https://openaitools.app/tool/merlin-ai-plugins) | 1,382,634 | +13.1% | Freemium | Provides faster multi-tab AI assistance and article summaries, but lacks dedicated social knowledge curation and note archiving features. | [.md](https://openaitools.app/tool/merlin-ai-plugins.md) |
| 7 | [Studley AI](https://openaitools.app/tool/studley-ai) | 1,031,545 | -19.5% | Freemium | Turn any material into notes, flashcards, quizzes, and podcasts. | [.md](https://openaitools.app/tool/studley-ai.md) |
| 8 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | Delivers powerful web automation and page summarization, but features a steeper learning curve than Glasp's streamlined extension. | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 9 | [ThetaWave AI](https://openaitools.app/tool/thetawave-ai) | 526,384 | +6.8% | Freemium | Turn any lecture, file, or video into notes, flashcards, and quizzes | [.md](https://openaitools.app/tool/thetawave-ai.md) |
| 10 | [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) |

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Source: https://openaitools.app/compare/glasp-vs-roten-x-devtool

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