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Mermaid vs Notability

Professional comparison and analysis to help you choose the right software solution for your needs.

Mermaid icon
Mermaid
Notability icon
Notability

Mermaid vs Notability: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Mermaid Notability
Sugggest Score
Category Development Education & Reference
Pricing Open Source Paid

Product Overview

Mermaid
Mermaid

Description: Mermaid is an open-source tool that allows you to create diagrams and visualizations using text and code. It is designed to integrate with documentation sites and wikis to add charts and graphs through a simple markdown-inspired script language. The key benefit is the ability to generate complex diagrams that are portable, themeable, and easy to edit programmatically.

Type: software

Pricing: Open Source

Notability
Notability

Description: Notability is a popular note-taking and annotation app for iOS and macOS. It allows users to take handwritten notes, type notes, record audio, annotate PDFs and more. Key features include advanced organization with search and tagging, auto-backup to the cloud, and easy sharing options.

Type: software

Pricing: Paid

Key Features Comparison

Mermaid
Mermaid Features
  • Diagram creation using text syntax
  • Support for flowcharts, sequence diagrams, Gantt charts, pie charts, etc
  • Integration with documentation sites and wikis
  • Ability to generate SVG, PNG and PDF images
  • Customizable themes
  • JavaScript library that runs in the browser
Notability
Notability Features
  • Handwritten notes
  • Typed notes
  • Audio recording
  • Annotating PDFs
  • Advanced organization with search and tags
  • Auto-backup to cloud
  • Easy sharing options

Pros & Cons Analysis

Mermaid
Mermaid
Pros
  • Simple and intuitive syntax
  • Good documentation and examples
  • Active development community
  • Themes allow extensive customization
  • Diagrams are portable and easy to embed
  • Lightweight and easy to integrate
Cons
  • Limited features compared to desktop diagramming tools
  • Browser support can be inconsistent
  • Complex diagrams can require more intricate syntax
  • Only creates static images, not interactive diagrams
Notability
Notability
Pros
  • Intuitive interface
  • Powerful organization features
  • Syncing across devices
  • Ability to search handwritten notes
Cons
  • No Windows version
  • PDF annotation could be better
  • Expensive subscription model

Pricing Comparison

Mermaid
Mermaid
  • Open Source
Notability
Notability
  • Paid

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