# Eraser vs Koolay

Eraser records 534,396 monthly visits with -23.6% month-over-month growth and Freemium, Paid, Contact for Pricing pricing. Koolay records 358 monthly visits with -75% growth and Freemium pricing.

| Metric | [Eraser](https://openaitools.app/tool/eraser) | [Koolay](https://openaitools.app/tool/koolay) |
| :--- | :--- | :--- |
| Website URL | https://www.eraser.io | https://www.koolay.com |
| Categories | AI Diagram Generator, AI Copilot, AI Design Generator, AI Documents Generator | AI Website Builder, AI Chatbot, Large Language Models (LLMs), AI Writing Assistants |
| Pricing Model | Freemium, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 534,396 | 358 |
| MoM Growth Rate | -23.6% | -75% |
| Primary Market | India | Global |
| Direct Visits | 267,661 | 142 |
| Review Score | 4.6 | 4 |
| 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)

## Koolay

Rather than selling a single tool, Koolay positions itself as the operating system a mission-driven nonprofit runs on. Its website, CMS, donation pages, events app, donor CRM, grant toolkit, finance and e-signature features all share one data model, so donor history, grant pipelines and event records stay in conversation with each other. The pitch is aimed squarely at the 'stitched stack' problem — replacing an Instrumentl-style grants tool, a separate CRM and a DocuSign contract with one login and one invoice.

The grant side is the AI headline. GrantHub Lite gives small nonprofits under $1M in revenue a free grant database and application tracker with no limits on searches or projects. GrantHub Pro adds deeper funder intel and the AI writing assistant, while a done-for-you grant writing service is available for organizations that want the work handled end to end. Success metrics are framed around real IRS payment data rather than marketing claims.

For operations and IT, Koolay emphasizes governance: SOC 2 Type II, SSO/SAML, role-based access control with audit logs, encryption in transit and at rest, and a 99.9% uptime target. Migration of donor history is included, and the platform speaks to a buying committee of executive directors, development directors and finance or IT leads.

**Pricing & Plans:** Freemium with contact-for-pricing tiers. GrantHub Lite is free forever for nonprofits under $1M in revenue, offering a grant database and application tracker with no search or project limits. GrantHub Pro and the full Koolay platform (CRM, donations, events, website, finance, e-sign) are quoted on a demo basis.

- **Grant discovery and matching:** EIN-matched grant search across 30K+ live opportunities, 1.9M nonprofits and 184K funders, with 990-PF funder dossiers and Why-GO scoring.
- **AI grant writing:** An AI grant writer grounded in your mission, budgets and past applications, plus a Kanban pipeline with deadline alerts and version history.
- **Donor CRM and donations:** Donor CRM with lifetime value, segments, recurring giving and automatic receipts living beside donation pages and events.
- **One connected system:** A website/CMS, events, email, finance and e-signature tools running on one modern data model instead of a stitched stack.
- **Enterprise-grade trust:** SOC 2 Type II, SSO/SAML, RBAC with audit logs, Plaid bank sync and an open API for IT and finance reviews.

**Strengths:** Free-forever grant discovery tier for small nonprofits under $1M revenue; Grants, donor CRM and e-signature bundled in a single system of record; AI writer grounded in the organization's own mission, budgets and past applications; Strong governance story: SOC 2 Type II, SSO/SAML, RBAC and audit logging

**Limitations:** Pricing for higher tiers is not published publicly and requires a demo conversation; Feature depth assumes you are a nonprofit — general-purpose website builders are easier for other use cases; Migration and onboarding, while included, still require time and coordination; Some advanced grant data (990-PF dossiers) is tied to paid plans

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

## Frequently Asked Questions

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

Eraser has 534,396 monthly visits, while Koolay has 358. 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%; Koolay has -75%.

### 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. Koolay: Freemium. Freemium with contact-for-pricing tiers. GrantHub Lite is free forever for nonprofits under $1M in revenue, offering a grant database and application tracker with no search or project limits. GrantHub Pro and the full Koolay platform (CRM, donations, events, website, finance, e-sign) are quoted on a demo basis.

## 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 | [Framer](https://openaitools.app/tool/framer-ai) | 4,974,738 | -5.7% | Freemium | The pro website builder with a design agent on a fully editable canvas | [.md](https://openaitools.app/tool/framer-ai.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 | [Readdy](https://openaitools.app/tool/readdy) | 425,313 | -13.2% | Freemium | AI website builder that designs, hosts, and runs your whole site | [.md](https://openaitools.app/tool/readdy.md) |
| 5 | [B12.io](https://openaitools.app/tool/b12-io) | 335,813 | +6.8% | Paid | AI website builder that turns a chat prompt into a launched business site | [.md](https://openaitools.app/tool/b12-io.md) |
| 6 | [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) |
| 7 | [Skip](https://openaitools.app/tool/helloskip-com) | 194,934 | +5.1% | Freemium | AI tools to fund, launch and grow your small business | [.md](https://openaitools.app/tool/helloskip-com.md) |
| 8 | [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) |
| 9 | [CodeDesign.ai](https://openaitools.app/tool/codedesign-ai) | 126,602 | -27.1% | Freemium, Paid | Agentic AI website builder you can host, sync or export | [.md](https://openaitools.app/tool/codedesign-ai.md) |
| 10 | [Macaly](https://openaitools.app/tool/macaly) | 90,553 | -14.1% | Freemium | Turn a prompt into a live website or full-stack app | [.md](https://openaitools.app/tool/macaly.md) |

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

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