Gliffy vs Mermaid
On the evidence we track, Gliffy leads this comparison with a composite score of 68/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for diagramming. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Gliffy
LeaderA diagramming application integrated natively into Confluence that enables teams to create, edit, and collaborate on flowcharts, UML diagrams, BPMN diagrams, and other technical visualizations within documentation pages. Diagrams remain stored in Confluence with secure permission management and no external tools required.
Mermaid
An open-source JavaScript library that lets developers create diagrams using simple text syntax, keeping documentation synchronized with code and enabling diagrams to be embedded in code and reviewed like regular diffs.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Gliffy
LeaderFree tier for up to 10 users. From $2.80/user/month for compliance-focused deployments; $3.80/user/month for standard plans. Annual billing available. Contact for enterprise pricing.
- Gliffy Diagrams for Confluence (Up to 10 Users)Free
- Native Confluence integration
- Unlimited diagrams
- Intuitive drag-and-drop interface
- Secure permission management through Confluence
- Create flowcharts, UML diagrams, BPMN diagrams, network diagrams, Mermaid diagrams
- +2 more
- Gliffy Diagrams for Confluence (11-100 Users)$3.80 per user per month, billed annually
- Native Confluence integration
- Unlimited diagrams
- Intuitive drag-and-drop interface
- Secure permission management through Confluence
- Create flowcharts, UML diagrams, BPMN diagrams, network diagrams, Mermaid diagrams
- +2 more
- Gliffy Zero Egress | Compliance-Ready DiagrammingFrom $2.80 per user per month for compliance-regulated teams
- No diagram data leaves Atlassian environment
- Compatible with Atlassian Government Cloud and Isolated Cloud
- ITAR, GDPR, HIPAA, SOC 2 Compliance
- EnterpriseContact sales
- All standard features
- Custom negotiated terms
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
Gliffy
Leader- Confluence
- Jira
- Atlassian Marketplace
- Microsoft Visio
- draw.io
- Stripe
Mermaid
- GitHub
- GitLab
- Obsidian
Gliffy or Mermaid: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.