# Eraser vs HoverNotes

Eraser records 534,396 monthly visits with -23.6% month-over-month growth and Freemium, Paid, Contact for Pricing pricing. HoverNotes records 190,686 monthly visits with +156% growth and Freemium pricing.

| Metric | [Eraser](https://openaitools.app/tool/eraser) | [HoverNotes](https://openaitools.app/tool/hovernotes) |
| :--- | :--- | :--- |
| Website URL | https://www.eraser.io | https://hovernotes.io |
| Categories | AI Diagram Generator, AI Copilot, AI Design Generator, AI Documents Generator | AI Notes Generator, AI Video Summarizer, AI Productivity Tools |
| Pricing Model | Freemium, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 534,396 | 190,686 |
| MoM Growth Rate | -23.6% | +156% |
| Primary Market | India | India |
| Direct Visits | 267,661 | 94,185 |
| Review Score | 4.6 | 4.3 |
| Saved Count | 3 | 0 |
| Supported Platforms | Website | Website |

## Eraser

Eraser is a technical design platform aimed at the people who document architecture: enterprise architects, DevOps and platform engineers, consultants, and software teams. The core promise is speed without sloppiness, so instead of dragging boxes for hours you describe the system or point Eraser at a source of truth such as code, a cloud account, a CMDB, or a spreadsheet, and it produces a diagram that already follows sensible layout rules.

Beyond static images, Eraser supports interactive maps that zoom from a company-wide view down into a single service, guided explainers that walk teammates through a system, and AI documents for design docs and technical documentation. Team governance features such as shared style presets, naming rules, and reference architectures keep output consistent as more people create diagrams. An open-source agent toolkit and MCP server let tools like Claude, Cursor, and ChatGPT create, search, and export diagrams programmatically.

Prices are organized in tiers that include a free entry point, paid plans, and enterprise agreements, with multi-tenant, single-tenant, and self-hosted deployment options for larger organizations. Security posture includes SOC 2 Type 2 certification and SAML SSO.

**Pricing & Plans:** Freemium with paid plans and custom enterprise pricing. A free tier and free tools such as DiagramGPT are available, while paid individual and team plans plus enterprise agreements cover advanced governance, security, and deployment options; check the pricing page for current rates.

- **AI diagram generation:** Generate architecture diagrams, flowcharts, sequence diagrams, and BPMN from a text prompt, code, Terraform, or an uploaded PDF, Word, Excel, PowerPoint, Draw.io, or Visio file.
- **Maps from live systems:** Build interactive maps that sync with cloud accounts, repositories, and internal catalogs so the picture stays close to the real environment, with drill-down from org level to a single container.
- **Diagram-as-code integrations:** Paste code or connect private and public Git repositories, Confluence, Notion, VS Code, and GitHub to keep diagrams grounded in actual implementation.
- **Open-source agent toolkit and MCP server:** Run the agent toolkit in your own infrastructure under an MIT license and let MCP-compatible clients create, search, update, and export diagrams with OAuth or API tokens.
- **Team style governance:** Apply presets, naming and notation rules, and reference architectures so every teammate's diagram ships on-brand and consistent.

**Strengths:** Turns prompts, code, and files into properly laid-out diagrams instead of raw box-and-arrow output; Interactive maps and explainers make complex systems understandable to non-architects; MCP server and open-source toolkit fit agent-driven and self-hosted workflows; Enterprise controls such as SSO, SAML, and SOC 2 Type 2 certification

**Limitations:** Heaviest value comes with team and governance features that need setup; Advanced mapping and self-hosted deployment are aimed at larger organizations rather than solo users

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

## HoverNotes

HoverNotes positions itself as the AI note taker that actually watches the video rather than only reading the captions. As you play a lecture, tutorial or course lesson, the extension captures on-screen content — code snippets, equations, slides and diagrams — and turns it into clean, structured Markdown with headings, bullet points and timestamped references. A one-click screenshot tool drops the current frame straight into your notes, which is useful for demo walkthroughs and visual subjects.

The extension works on essentially any site where video plays: YouTube, Udemy, Coursera, LinkedIn Learning, Skillshare, edX, Khan Academy, Vimeo, TED, Bilibili and university platforms such as Canvas, Blackboard, Moodle, Panopto and Kaltura, plus local video files. Because notes are stored as plain Markdown on your device, Obsidian users can point HoverNotes at their vault and keep everything local and searchable. Extra features include a distraction-free split workspace that dims the rest of the page, advanced playback controls from 0.1x to 16x speed, ad skipping on YouTube, and export to PDF or Word.

Beyond note taking, HoverNotes offers Live Translate, which translates a speaker's voice into your chosen language while keeping the picture in sync, and "Hovie," an in-note AI assistant that knows your notes, the transcript and your screenshots so it can explain a confusing moment or summarise a section. A generous free tier covers 20 minutes of AI notes with unlimited manual notes, while the Unlimited Pro plan removes the AI caps for regular learners.

**Pricing & Plans:** Freemium. The free Starter tier includes 20 minutes of AI Video Notes, 10 minutes of Live Translate, unlimited manual note taking, screenshots with timestamps, Obsidian integration and export to PDF or Word. Unlimited Pro is around US$18/month (about US$120/year, roughly US$10/month billed annually) and adds unlimited AI Notes, AI-chosen screenshots, transcript saving to your vault, AI Notes in 24 languages, custom prompts, unlimited Hovie chats and one hour of Live Translate per month.

- **Visual AI that watches the screen:** Captures code, equations, diagrams and slide content exactly as they appear, so notes are complete even on videos with no captions.
- **Structured Markdown notes:** Generates headings, bullets and syntax-highlighted code blocks that drop straight into an Obsidian vault or any Markdown editor.
- **Timestamped screenshots:** One click adds the current frame to your notes at the right timestamp, ideal for diagrams, demos and UI walkthroughs.
- **Live Translate and Hovie assistant:** Listen to a speaker in your own language while the video stays in sync, and ask Hovie to explain or summarise any moment using your notes and screenshots.
- **Works on any video site:** From YouTube, Udemy and Coursera to university lecture systems and local files — if it plays in the browser, HoverNotes notes it.

**Strengths:** Captures on-screen code, equations and diagrams that transcript-only tools miss; Saves to Obsidian as local Markdown files for privacy and long-term ownership; Works across dozens of video platforms plus local files with no per-site setup; Free tier is genuinely usable for occasional note taking

**Limitations:** Requires the Chrome extension, so it is browser-bound rather than a standalone app; AI note minutes are capped on the free plan; heavy users need the Pro subscription

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

## Frequently Asked Questions

### How do Eraser and HoverNotes compare in monthly traffic?

Eraser has 534,396 monthly visits, while HoverNotes has 190,686. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Eraser has a month-over-month growth rate of -23.6%; HoverNotes has +156%.

### How does pricing compare?

Eraser: Freemium, Paid, Contact for Pricing. Freemium with paid plans and custom enterprise pricing. A free tier and free tools such as DiagramGPT are available, while paid individual and team plans plus enterprise agreements cover advanced governance, security, and deployment options; check the pricing page for current rates. HoverNotes: Freemium. Freemium. The free Starter tier includes 20 minutes of AI Video Notes, 10 minutes of Live Translate, unlimited manual note taking, screenshots with timestamps, Obsidian integration and export to PDF or Word. Unlimited Pro is around US$18/month (about US$120/year, roughly US$10/month billed annually) and adds unlimited AI Notes, AI-chosen screenshots, transcript saving to your vault, AI Notes in 24 languages, custom prompts, unlimited Hovie chats and one hour of Live Translate per month.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Miro](https://openaitools.app/tool/miro) | 30,749,206 | +1.7% | Freemium, Contact for Pricing | Offers an expansive infinite canvas for team brainstorming and visual workshops, but lacks Eraser's code-to-diagram automation. | [.md](https://openaitools.app/tool/miro.md) |
| 2 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | Integrates frontier chat models into a versatile browser sidebar for on-page summarization, but lacks automated video-watching workflows. | [.md](https://openaitools.app/tool/sider.md) |
| 3 | [Napkin AI](https://openaitools.app/tool/napkin) | 1,029,978 | -17.5% | Freemium | Automatically embeds visual diagrams directly inside text documents, though it lacks Eraser's specialized cloud architecture focus. | [.md](https://openaitools.app/tool/napkin.md) |
| 4 | [ThetaWave AI](https://openaitools.app/tool/thetawave-ai) | 526,384 | +6.8% | Freemium | Converts lectures and videos into structured notes and interactive quizzes, but operates primarily as a web app rather than a video browser extension. | [.md](https://openaitools.app/tool/thetawave-ai.md) |
| 5 | [EdrawMax](https://openaitools.app/tool/edrawmax-com) | 301,707 | -6.5% | Paid | Provides extensive drag-and-drop shapes and templates for general diagrams, but weaker automated code-to-diagram capabilities than Eraser. | [.md](https://openaitools.app/tool/edrawmax-com.md) |
| 6 | [Cloudairy](https://openaitools.app/tool/cloudairy) | 179,162 | -13% | Freemium, Contact for Pricing | Combines team whiteboarding, documentation, and diagramming in one platform, but less tailored for automated codebase architecture. | [.md](https://openaitools.app/tool/cloudairy.md) |
| 7 | [Kome AI](https://openaitools.app/tool/kome-ai) | 174,910 | -6.5% | Freemium | Provides fast webpage summarization and bookmark management from a browser sidebar, but is less tailored to video-heavy online courses. | [.md](https://openaitools.app/tool/kome-ai.md) |
| 8 | [Noiz](https://openaitools.app/tool/noiz) | 148,844 | -27.8% | Free Trial | Transcribes and summarizes video content quickly as a browser extension, but lacks HoverNotes' specialized real-time visual course tracking. | [.md](https://openaitools.app/tool/noiz.md) |
| 9 | [Eightify](https://openaitools.app/tool/eightify) | 109,241 | -23.2% | Freemium | Extracts key timestamped insights instantly via a browser extension, though it generates shorter summaries than HoverNotes. | [.md](https://openaitools.app/tool/eightify.md) |
| 10 | [ChartDB](https://openaitools.app/tool/chartdb) | 49,523 | -33.4% | Freemium | Open-source tool specifically tailored for database schema visualization and ER diagrams, but lacks general system documentation features. | [.md](https://openaitools.app/tool/chartdb.md) |

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Source: https://openaitools.app/compare/eraser-vs-hovernotes

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