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Write text, get a diagram. Update the text to update the diagram. Ideal for technical documentation. Generate any of the 20+ Mermaid.JS diagram types . Use mermaid.live for bigger diagrams.
Listing updated:February 25, 2025
Works with:
161K+
Overview
Write text, get a flow chart, a sequence diagram, a pie chart... The chart is inserted in your document or slide, and you can edit its text again afterward.

TIPS : 
- Use mermaid.live for bigger diagrams. This addon is made to maintain many small diagrams, not to generate giant ones.  
- Don't try to add icons, they won't work
- if your graph is very big use https://mermaid.live instead
- Keep the graph positioned in-line in your document, otherwise you won't be able to edit
- If you are logged in with multiple google accounts, this will only work with the "main" one
- all the mermaid charts should be supported, I update mermaid to the latest version from time to time
- if this app has any issue, your work isn't lost. Do a right click / "alt text" on a chart to see the mermaid source code, then edit your graph in https://mermaid.live 
- people without the add-on see the graphs, but cannot change their content.
- This uses mermaid 11 for rendering : https://mermaid.js.org
- there's a similar addon called "PlantUML Gizmo" that works in slide too, but uses a different rendering system and syntax, give it a try

This is ideal for technical documentation, where having up to dates graphs is more important than having pretty graphs. Only editing a few words here and there is very easy with this add-on.

Please keep in mind that this add-on is provided for free, I'm not making any money with it. Feel free to leave a review for this add-on so that more people get to use it. Reviews really motivate me to improve the add-on. 

The graphs are generated client side on your machine. The mermaid code and generated images are only seen by Google Docs and you, i don't even have access myself. There is no telemetry in this add-on. The code is open source and can be read on Github.  

Additional information
PricingFree of charge
Developer
Privacy policy
Terms of service
Mermaid - Diagramming and charting tool will ask for the permissions shown below. Learn more
Mermaid - Diagramming and charting tool will need access to your Google account
This will allow Mermaid - Diagramming and charting tool to :
View and manage documents that this application has been installed in
Display and run third-party web content in prompts and sidebars inside Google applications
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
Reviews
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M. da Rui
February 15, 2025
Really helpful, thanks! Extremely user-friendly. No bugs so far
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Zubin Henner
May 29, 2024
Including source code for Mermaid diagrams in Google Docs is awesome! This plugin isn't great for editing diagram source code, but that's what mermaid.live is for. Thanks to the author, great job!
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AGV
April 20, 2024
I love this plugin very much, it reduces my hassle in google doc of arranging box manually and provides efficient flowchart ever, large graph preview still needs work. I'm very glad to have this plugin for free
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Joanna Kornas
November 28, 2024
Awful. Longer diagrams are totally unreadable and blurred.
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Johannes Dwiartanto
December 6, 2024
My diagram is a bit long and the result is blurry. Maybe I should split the diagrams.
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John Doe
April 9, 2024
Incredible plugin. There are very little things that could be better, but overall it's definitely 5 starts!
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Tanujdeep Singh
July 25, 2024
Finally something that resolves all problems in adding flow charts in design docs made in google docs
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Abdur Rehman Aleem
June 13, 2024
It doesn't work as intended for complex diagrams..
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Jason Curtis
August 15, 2023
I'm very glad to have this add-on. It doesn't feel polished so I can't give it more than 3 stars. Issues: For large graphs, the preview doesn't always fit the entire output. Also for large graphs, the resulting embedded image in the document feels low-res. It occasionally freezes up, so save your work (commit it to the document) often.
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Patryk Małek
July 3, 2024
Can't scroll or zoom in the preview. Other than that it's a very handy extension.
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