# Eraser vs Magic Cal

Eraser records 534,396 monthly visits with -23.6% month-over-month growth and Freemium, Paid, Contact for Pricing pricing. Magic Cal records 0 monthly visits with — growth and Free pricing.

| Metric | [Eraser](https://openaitools.app/tool/eraser) | [Magic Cal](https://openaitools.app/tool/magic-cal) |
| :--- | :--- | :--- |
| Website URL | https://www.eraser.io | https://chromewebstore.google.com/detail/magic-cal/pnfnnknogjdmdokpamonebajblkelkhj |
| Categories | AI Diagram Generator, AI Copilot, AI Design Generator, AI Documents Generator | AI Calendar, Large Language Models (LLMs), AI Assistant, AI Productivity Tools |
| Pricing Model | Freemium, Paid, Contact for Pricing | Free |
| Monthly Visits | 534,396 | 0 |
| MoM Growth Rate | -23.6% | — |
| Primary Market | India | Global |
| Direct Visits | 267,661 | 0 |
| Review Score | 4.6 | 1.7 |
| Saved Count | 3 | 0 |
| Supported Platforms | Website | Browser Extension |

## 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)

## Magic Cal

Magic Cal solves a very small but very repetitive problem: translating what you mean into what a calendar form expects. Once the extension is installed, opening Google Calendar gives you an extra creation option labelled "Magic Event". You type or paste a natural-language phrase such as "Dinner with Ana next Friday at 8pm" and the tool parses the intent into a real event on your calendar, so you can skip the dropdowns and time pickers.

The extension is built on top of ChatGPT (the gpt-3.5-turbo model), which means it needs a working internet connection to function, and the amount of context it understands is typical of that model generation. It supports input in any language, so users who do not think in English can still describe events in their own words.

The project is published by an individual developer, Markus Zhang, and is free of charge. Because it is a small independent extension, there is no large support organisation behind it, but the listing states that the developer is reachable by email for help, bugs and complaints.

**Pricing & Plans:** Completely free. The Chrome Web Store listing states there is no charge, with the only rule being that spam usage is not permitted.

- **Natural-language event creation:** Describe an event in ordinary words and Magic Cal turns it into a real entry on Google Calendar, including the title and timing it can infer from your sentence.
- **Live inside Google Calendar:** A "Magic Event" option appears right in the Google Calendar create menu, so you never have to leave the page or open a separate chat window.
- **Any-language input:** The listing explicitly supports input in any language, letting you phrase events the way you actually speak.
- **Powered by ChatGPT:** Interpretation of your sentence is handled by the gpt-3.5-turbo model, one of the well-known ChatGPT models.
- **Zero-cost, lightweight install:** The extension is free and under three megabytes, so installing and removing it takes seconds.

**Strengths:** Free to use with no subscription or account required beyond your Google login.; Saves clicks by replacing multi-field event forms with one sentence.; Works in any language, which is unusual for small calendar helpers.; Lives directly inside Google Calendar rather than in a separate app.

**Limitations:** Needs an internet connection because event parsing runs through ChatGPT.; Very small user base and no ratings, so reliability feedback from others is limited.; The underlying gpt-3.5-turbo model can misread ambiguous dates or times.

[Profile (Markdown)](https://openaitools.app/tool/magic-cal.md)

## Frequently Asked Questions

### How do Eraser and Magic Cal compare in monthly traffic?

Eraser has 534,396 monthly visits, while Magic Cal has 0. 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%; Magic Cal has —.

### 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. Magic Cal: Free. Completely free. The Chrome Web Store listing states there is no charge, with the only rule being that spam usage is not permitted.

## 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 | [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) |
| 3 | [Reclaim AI](https://openaitools.app/tool/reclaim-ai) | 735,853 | -1.7% | Freemium, Free Trial | AI calendar that defends your focus time and schedules work automatically | [.md](https://openaitools.app/tool/reclaim-ai.md) |
| 4 | [Motion](https://openaitools.app/tool/usemotion-com) | 511,886 | -15.5% | Free Trial, Paid | The AI super app for work — tasks, projects, calendar and meetings in one place | [.md](https://openaitools.app/tool/usemotion-com.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 | [Morgen](https://openaitools.app/tool/morgen) | 261,722 | -10.6% | Free Trial, Paid | AI daily planner that turns your calendars and tasks into one clear plan | [.md](https://openaitools.app/tool/morgen.md) |
| 7 | [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) |
| 8 | [Akiflow](https://openaitools.app/tool/akiflow) | 175,987 | -21.7% | Free Trial, Paid | Tasks, calendar and an AI sidekick in one time-blocking planner | [.md](https://openaitools.app/tool/akiflow.md) |
| 9 | [Routine](https://openaitools.app/tool/routine-co) | 144,581 | -14.5% | Freemium | One AI-powered workspace for tasks, calendars, notes and meetings | [.md](https://openaitools.app/tool/routine-co.md) |
| 10 | [FlowSavvy](https://openaitools.app/tool/flowsavvy) | 82,220 | +19.5% | Freemium | AI calendar that auto-schedules your tasks and re-plans when life changes | [.md](https://openaitools.app/tool/flowsavvy.md) |

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Source: https://openaitools.app/compare/eraser-vs-magic-cal

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