
LucidChart
PlantUML
draw.io
Mermaid Chart
Excalidraw
Diagramly.ai
Miro
Create diagrams and visualizations using text and code.

LeetCode
The bug you can't spot today ships tomorrow. Train before the incident: one realistic AI pull request a day, graded against a canonical review. Free, no signup.

Which is more popular?
Based on our record, Mermaid seems to be more popular. It has been mentioned 62 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | mermaid.js.org | diffdojo.com |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
The Little Mermaid Paid Reviews Are In!
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Mermaid and DiffDojo. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Like PlantUML, Mermaid follows the diagrams-as-code model. It is supported by GitHub and uses Markdown-style notation to create and modify diagrams. This makes diagramming with Mermaid very convenient if you're...
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Recommendations tracked on public social media and blogs since March 2021.


Seems a bit more like https://mermaid.js.org use cases! - Source: Hacker News / 3 months ago
I wanted authors on my Forem instance to write flowcharts and sequence diagrams using Mermaid syntax directly in their articles, like this:. - Source: dev.to / 4 months ago
Credits: - label: Cover image text: Kelly Sikkema on Unsplash url: https://unsplash.com/@kellysikkema - label: Diagram library text: Mermaid url: https://mermaid.js.org/. - Source: dev.to / 5 months ago
Tracking DiffDojo since Sep 2026.
When comparing Mermaid and DiffDojo, you can also consider the following products.

LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
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Practice and level up your development skills and prepare for technical interviews.
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PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.
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Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.
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