# Eraser vs Heptabase

Eraser records 534,396 monthly visits with -23.6% month-over-month growth and Freemium, Paid, Contact for Pricing pricing. Heptabase records 179,905 monthly visits with -5.8% growth and Free Trial, Paid pricing.

| Metric | [Eraser](https://openaitools.app/tool/eraser) | [Heptabase](https://openaitools.app/tool/heptabase) |
| :--- | :--- | :--- |
| Website URL | https://www.eraser.io | https://heptabase.com |
| Categories | AI Diagram Generator, AI Copilot, AI Design Generator, AI Documents Generator | AI Note Taker, AI Knowledge Management, AI Research Tool, Whiteboard AI |
| Pricing Model | Freemium, Paid, Contact for Pricing | Free Trial, Paid |
| Monthly Visits | 534,396 | 179,905 |
| MoM Growth Rate | -23.6% | -5.8% |
| Primary Market | India | Taiwan |
| Direct Visits | 267,661 | 97,771 |
| Review Score | 4.6 | 4.6 |
| Saved Count | 3 | 1 |
| 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)

## Heptabase

Heptabase is designed for people who want to understand material rather than merely collect it. At its core is a whiteboard where you break any source into cards — by hand or with AI — and then read deeper by following each citation back to its origin. Supported sources include PDFs, web pages, YouTube videos, podcasts, Readwise and Zotero, so research from different places lands in a single visual space. Nested databases, tags and properties then give that material a structure you can reshape as your understanding changes.

AI features are framed as learning aids rather than answer machines. An AI Tutor turns a goal into a personalised course, and AI assist helps process readings and organise cards on the board. For those who already work inside other AI tools, Heptabase exposes your knowledge base through Claude Code, ChatGPT, Codex and Grok Bot, plus a plugin, MCP server and CLI, so notes can be queried from the assistant you already use.

The practical basics are covered too: a block editor with daily journals, bi-directional links and web clipper; PDF highlight and annotation; offline access; mobile apps; and real-time collaboration for co-annotating boards. Heptabase offers a 7-day trial across mobile and desktop and positions itself as a long-term knowledge home rather than a quick note dump.

**Pricing & Plans:** Heptabase offers a 7-day free trial, with paid subscription plans published on its pricing page covering individual use. Refer to the pricing page itself for current figures.

- **Whiteboards for breaking down sources:** Split PDFs, web pages, YouTube videos, podcasts and Readwise or Zotero items into cards and read deeper through every citation.
- **AI Tutor and AI-assisted reading:** Turn any goal into a personalised course and process readings with AI help before arranging ideas on the board.
- **Nested databases, tags and properties:** Give your knowledge a structure that can be reworked as you learn, using nested tags and properties rather than flat folders.
- **Works with the AI tools you already use:** Query your knowledge base from Claude Code, ChatGPT, Codex or Grok Bot through the plugin, MCP server and CLI.
- **PDF annotation, offline access and collaboration:** Highlight and annotate PDFs, work offline, sync in real time and co-annotate boards with other people on desktop and mobile.

**Strengths:** Whiteboard-plus-database model suits understanding, not just storage; Ingests PDFs, web pages, YouTube, podcasts, Readwise and Zotero; Integrates with Claude Code, ChatGPT, Codex and Grok through plugin, MCP and CLI; Offline access, mobile apps and real-time collaboration included

**Limitations:** Whiteboard metaphor takes time to learn if you are used to linear note apps; Only a 7-day trial before committing to a paid plan; Heavy canvases can become unwieldy without disciplined card naming

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

## Frequently Asked Questions

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

Eraser has 534,396 monthly visits, while Heptabase has 179,905. 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%; Heptabase has -5.8%.

### 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. Heptabase: Free Trial, Paid. Heptabase offers a 7-day free trial, with paid subscription plans published on its pricing page covering individual use. Refer to the pricing page itself for current figures.

## 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 | An AI-powered visual workspace where teams think, plan, and build together | [.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 | [Whimsical](https://openaitools.app/tool/whimsical) | 966,895 | -18.7% | Freemium | The collaborative whiteboard built for product builders | [.md](https://openaitools.app/tool/whimsical.md) |
| 4 | [ResearchRabbit](https://openaitools.app/tool/researchrabbit) | 831,571 | +3.1% | Free | Map the literature around the papers you love—free | [.md](https://openaitools.app/tool/researchrabbit.md) |
| 5 | [Capacities](https://openaitools.app/tool/capacities) | 339,396 | +5.7% | Freemium, Paid | Organizes notes into connected typed objects rather than visual whiteboards and infinite spatial canvases. | [.md](https://openaitools.app/tool/capacities.md) |
| 6 | [Flowith](https://openaitools.app/tool/flowith) | 324,679 | -27.3% | Contact for Pricing | Pairs a spatial visual canvas with multi-model chat agents, offering a more agentic research experience than Heptabase. | [.md](https://openaitools.app/tool/flowith.md) |
| 7 | [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) |
| 8 | [Storyflow](https://openaitools.app/tool/storyflow-ai) | 272,264 | -7.7% | Freemium | Combines an infinite canvas workspace with an integrated AI assistant to organize projects and generate boards. | [.md](https://openaitools.app/tool/storyflow-ai.md) |
| 9 | [Heuristica](https://openaitools.app/tool/heuristica) | 239,033 | -22.5% | Freemium | Transforms diverse study materials like PDFs and videos directly into interactive concept maps and flashcards. | [.md](https://openaitools.app/tool/heuristica.md) |
| 10 | [Noteey](https://openaitools.app/tool/noteey) | 230,694 | -1.6% | Freemium | An offline-first visual note-taking app on an infinite canvas with built-in AI summarization tools. | [.md](https://openaitools.app/tool/noteey.md) |

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

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