Mermaid Chart vs Gliffy: A Comprehensive Diagramming Tool Comparison
Compare Mermaid Chart vs Gliffy for diagramming, collaboration, AI generation, and Confluence workflows, with Mermaid Chart standing out for text-based diagram creation.
Introduction
Choosing between Mermaid Chart and Gliffy comes down to how your team prefers to build diagrams and where those diagrams live in day-to-day work.
Mermaid Chart is built around text-based definitions, Mermaid syntax, AI-assisted creation, and real-time collaboration. It also highlights broad adoption, with over 5 million people and over 200,000 companies using it, and it connects directly to the Mermaid open-source ecosystem with 89.2k GitHub stars. Gliffy, by contrast, is positioned strongly around team and documentation workflows, especially Gliffy for Confluence, Gliffy Zero Egress, and AI diagram generation inside Confluence.
For buyers evaluating Mermaid Chart vs Gliffy, the practical question is simple: do you want a diagramming workflow centered on text, code, and flexible creation modes, or a workflow centered more tightly on Confluence-based documentation and enterprise documentation use cases?
Product Overview
Mermaid Chart
Mermaid Chart is a diagramming platform for creating complex diagrams using text-based definitions. It is built on Mermaid and supports flowcharts, sequence diagrams, Gantt charts, ER diagrams, timelines, mind maps, org charts, block diagrams, state diagrams, Git graphs, user journey diagrams, class diagrams, pie charts, and quadrant charts.
The platform combines multiple creation methods in one workspace. Users can build with Mermaid syntax, generate diagrams with AI from plain text, edit visually with clicks, collaborate in real time, embed diagrams into docs and wikis, and work from tools such as VS Code, GitHub Copilot, and Confluence. Mermaid Chart also emphasizes security features including secure access controls, custom encryption, SOC 2 compliance, and SSO integration.
Gliffy
Gliffy is a diagramming product aimed at teams across information technology, software engineering, product, business, and design. It also serves industries including automotive, education, finance, healthcare, and government, and it is organized around documentation and operational use cases such as ITSM, work management, business transformation, and Agile DevOps.
Its product lineup prominently includes Gliffy for Confluence and Gliffy Zero Egress. Gliffy also offers AI diagram generation in Gliffy for Confluence, positioning it as a documentation-oriented visual tool for teams working inside Confluence environments.
Mermaid Chart vs Gliffy: Feature Comparison
| Feature | Mermaid Chart | Gliffy |
|---|---|---|
| Primary diagram creation style | Text-based definitions with Mermaid syntax, plus visual editing and AI generation | Diagramming platform with AI generation in Gliffy for Confluence |
| AI diagram generation | Create diagrams from plain-text prompts in one workspace | AI feature generates ideas into diagrams in Gliffy for Confluence |
| Diagram types highlighted | Flowchart, sequence diagram, Gantt chart, ER diagram, timeline, mind map, org chart, block diagram, state diagram, Git graph, user journey, class diagram, pie chart, quadrant chart | Structures and process diagrams are highlighted through use cases |
| Collaboration | Real-time co-editing, feedback, live and async sharing | Confluence-centered collaboration is a key part of product positioning |
| Developer workflow | VS Code integration, Mermaid syntax authoring, GitHub Copilot plugin support, IDE rendering | Strongest named product focus is Confluence |
| Security and enterprise controls | Secure access controls, custom encryption, SOC 2 compliance, seamless SSO integration | Gliffy Zero Egress and Security and Compliance resources are part of the product portfolio |
| Ecosystem positioning | From the creators of Mermaid.js with direct connection to Mermaid open source | Positioned within the Perforce portfolio and Confluence ecosystem |
Mermaid Chart vs Gliffy Pricing
Mermaid Chart presents a start-free path in its product flow, while Gliffy offers a free trial and a dedicated pricing section. For buyers comparing purchasing motion, Mermaid Chart emphasizes immediate self-serve signup and Gliffy emphasizes trial-driven evaluation.
| Feature | Mermaid Chart | Gliffy |
|---|---|---|
| Entry point | Start free | Start Diagramming free trial |
| Contact sales option | Yes | Pricing page available |
| Trial access path | Self-serve signup with Google or GitHub options | Free trial |
| Billing detail emphasis | Product-led onboarding flow | Dedicated pricing flow tied to Gliffy products |
For many buyers, pricing evaluation here is less about headline plan numbers and more about packaging. Mermaid Chart is presented as an immediately accessible diagramming workspace, while Gliffy channels buyers more directly into trial and product-specific purchasing paths, especially around Confluence.
Usage & User Experience
Mermaid Chart
Mermaid Chart is designed for users who want flexibility in how diagrams are created. A user can start from natural language, switch into Mermaid code, then refine the output visually with clicks. That makes it suitable for mixed teams where some users think in code and others prefer direct manipulation.
The product also supports creating where teams already work. It can render diagrams in an IDE, embed into presentations, docs, and wikis, and extend through plugins. That broad workflow coverage makes Mermaid Chart especially useful when diagrams are part of technical documentation, architecture work, product planning, or operational communication.
Gliffy
Gliffy is oriented around structured team documentation workflows. Its navigation and product organization put strong emphasis on business teams, IT, software engineering, operations, and industry-specific use cases. The most concrete workflow anchor is Confluence, through Gliffy for Confluence and AI diagramming within that environment.
For teams that already standardize on Confluence for documentation, that focus can simplify adoption. A buyer looking for a Gliffy alternative should weigh whether they want that Confluence-centered model or a more text-first, multi-workflow diagramming environment.
Best Use Cases
Mermaid Chart is a strong fit for:
- Engineering teams that want diagrams generated from Mermaid syntax
- Technical writers documenting systems, workflows, or infrastructure
- Product and operations teams that need flowcharts, timelines, org charts, and roadmaps
- Teams that want AI generation, code-based editing, and visual editing in one tool
- Organizations that need real-time collaboration plus enterprise controls like SSO and custom encryption
- Users who want to work inside VS Code, docs, wikis, and presentations without rebuilding diagrams across tools
Gliffy is a strong fit for:
- Teams centered on Confluence documentation
- Organizations evaluating zero-egress deployment options
- IT, software engineering, product, and business teams using documentation-heavy workflows
- Buyers who want AI diagram generation tied directly to Confluence use
Is Mermaid Chart a Good Gliffy Alternative?
Yes, especially for teams that want more than a Confluence-first diagramming workflow.
Mermaid Chart stands out as a Gliffy alternative because it supports three distinct ways to work in the same environment: AI prompting, Mermaid code authoring, and visual editing. It also reaches beyond a single documentation hub with IDE integration, plugin support, presentations, docs, and wiki embedding. If your team values diagrams as living assets that evolve with documentation and code, Mermaid Chart has the stronger workflow story.
Gliffy remains compelling for buyers who are deeply invested in Confluence and want a product package built around that context.
Who Should Choose Which
Choose Mermaid Chart if:
- Your team prefers text-based diagramming
- You want Mermaid syntax as a first-class workflow
- You need a wide set of diagram types in one platform
- You want AI, code, and visual editing combined
- You care about VS Code integration and plugin extensibility
- You want a direct connection to the Mermaid ecosystem
Choose Gliffy if:
- Your diagramming workflow is primarily inside Confluence
- You want a product specifically packaged as Gliffy for Confluence
- Zero-egress deployment is a major buying consideration
- Your evaluation is centered on documentation and process visualization inside established enterprise team environments
Conclusion
In a Mermaid Chart vs Gliffy evaluation, the clearest difference is workflow design. Mermaid Chart is stronger for teams that want text-based diagramming, Mermaid syntax, AI-assisted generation, real-time collaboration, and flexible use across IDEs, docs, wikis, and presentations. Gliffy is stronger when Confluence is the center of the diagramming workflow and the buying process is closely tied to that ecosystem.
If you want diagrams that can start as text, evolve through AI, and stay editable in both code and visual modes, Mermaid Chart is the more versatile choice. You can explore it and start building at https://www.mermaidchart.com.
FAQ
What is the main difference between Mermaid Chart and Gliffy?
Mermaid Chart is centered on text-based definitions and Mermaid syntax, with AI generation and visual editing in the same workspace. Gliffy is positioned more tightly around documentation teams and Confluence-focused workflows, including Gliffy for Confluence and AI diagramming within that product.
Is Mermaid Chart a good Gliffy alternative for technical teams?
Yes. Mermaid Chart is particularly well suited to developers, data engineers, analysts, technical writers, and other teams that want diagrams connected to code, Markdown-style workflows, and IDE usage. Its Mermaid-based approach is a strong match for technical documentation and system design.
Does Mermaid Chart support real-time collaboration?
Yes. Mermaid Chart supports real-time co-editing, feedback, and sharing for live or async collaboration. That makes it useful for distributed teams working on documentation, architecture, planning, or process diagrams together.
Which tool is better for Confluence users?
Gliffy has the more explicit Confluence focus through Gliffy for Confluence and AI diagram generation in that environment. Mermaid Chart also highlights Confluence among its plugin and embedding options, but its overall workflow is broader than a single documentation platform.
What kinds of diagrams can Mermaid Chart create?
Mermaid Chart supports a broad range of diagrams including flowcharts, sequence diagrams, Gantt charts, ER diagrams, timelines, mind maps, org charts, block diagrams, state diagrams, Git graphs, user journey diagrams, class diagrams, pie charts, and quadrant charts. That breadth makes it suitable for both technical and business use cases.
Why do buyers choose Mermaid Chart over Gliffy?
Buyers choose Mermaid Chart when they want more creation flexibility: plain-text prompting, Mermaid code, and visual editing in one tool. It is also attractive for teams that want Mermaid ecosystem alignment, real-time collaboration, VS Code support, and enterprise security features such as SOC 2, SSO, and custom encryption.