Create, edit, and refine diagrams directly in your SlidesAI presentations.
A good diagram can make a complicated idea much easier to understand. But creating one can take time—building shapes, connecting them, arranging labels, and keeping everything readable.
With Mermaid diagrams in SlidesAI, you can create structured diagrams directly in your presentation, choose from 17 diagram types, edit the Mermaid source, and use AI to make changes or fix syntax errors.
You can also export your finished diagrams as PNG or SVG files when you need to use them elsewhere.
Create 17 Types of Diagrams
Different ideas call for different visuals. A process might need a flowchart, while a project timeline is better represented by a Gantt chart.
SlidesAI supports 17 Mermaid diagram types:
Choose the diagram type that matches what you’re trying to explain, then build and refine it directly in your presentation.
Edit Your Diagram as Your Presentation Changes
Presentations rarely stay exactly the same from the first draft to the final version.
A process gains another step. A label changes. A system gets another component. Two parts need to be connected differently.
With Mermaid diagrams in SlidesAI, you can update the diagram instead of deleting it and starting again.
You can:
- Change labels and text
- Add or remove elements
- Change connections
- Rework the diagram structure
- Edit the Mermaid source
- Ask AI to make changes
The preview updates as you work, so you can see the result before saving it.
Use AI to Make Changes
You don’t need to know Mermaid syntax to make every change yourself.
With Ask AI, you can describe what you want to change in plain language.
For example:
Add a review step after the approval stage.
Or:
Add a new service connected to the payment system.
SlidesAI can make the requested changes to the diagram, allowing you to review the updated version before saving it.
This is useful when you know what you want the diagram to show but don’t want to work out the exact Mermaid syntax yourself.
Fix Mermaid Errors With AI
Mermaid diagrams are created from text-based syntax. If the syntax contains an error, the diagram may not render correctly.
Fix with AI can help identify and resolve the issue.
Instead of searching through the source yourself, you can use the tool to fix the problem and then review the corrected diagram in the preview before saving it.
This can also make Mermaid easier to work with if you’re new to the syntax.
How to Create a Mermaid Diagram in SlidesAI?
Getting started takes a few steps.
1. Open Your Presentation
Open the presentation where you want to add the diagram.
2. Select Insert
From the bottom toolbar, select Insert.
3. Choose Mermaid
Open the Mermaid diagram options and browse or search for the diagram type you want.
4. Select a Diagram
Choose from the available types, such as Flowchart, Mindmap, Gantt, User Journey, or Architecture.
5. Edit the Diagram
Use the editor to change the Mermaid source, labels, structure, and connections. The preview updates as you work.
6. Use AI When You Need It
Select Ask AI to describe the changes you want.
If the diagram contains a syntax error, you can use Fix with AI to help resolve it.
7. Save Your Changes
Review the updated diagram and select Accept & Save when you’re happy with the result.
You can return to the diagram and edit it again as your presentation evolves.
Make Your Diagrams Match Your Presentation
A useful diagram also needs to look like it belongs on the slide.
Mermaid diagrams in SlidesAI can follow the visual style of your presentation, including its colors, fonts, and background.
That means you don’t have to create a diagram separately and then spend additional time making it match the rest of your deck.
The result can feel like part of the presentation rather than something added from another tool.
Export Your Diagrams When You Need Them Elsewhere
Your diagram doesn’t have to stay inside the presentation.
Once you’ve created one in SlidesAI, you can export it as a PNG or SVG. You can also copy it as a PNG and paste it into another presentation, document, or tool.
SVG export is useful when you need a scalable version of the diagram that can be resized without losing quality.
What Can You Build With Mermaid Diagrams?
Mermaid diagrams can be useful across a wide range of presentations.
1. Explain a Process
Use a Flowchart to show how a task, workflow, or business process moves from one step to another.
2. Map a User Journey
Architecture and C4 Context diagrams can help explain how different systems, services, and components fit together.
3. Show How a System Works
Architecture and C4 Context diagrams can help explain how different systems, services, and components fit together.
4. Plan a Project
Gantt and Kanban diagrams give you ways to show project timelines, tasks, and progress.
5. Explore Relationships
ER and Class diagrams can show how different entities or components relate to each other, making them useful for technical and database-related presentations.
6. Break Down a Complex Idea
Mindmaps provide a way to start with a central idea and branch into related topics, which can be useful when explaining subjects with several connected parts.
Built for Presentations That Keep Changing
A diagram is rarely finished when you first create it.
Your ideas change, your presentation changes, and the diagram often needs to change with them.
That’s why Mermaid diagrams in SlidesAI can be edited after they’re created. You can adjust the source yourself, ask AI to make changes, fix syntax errors, and review the result before saving.
And when you need the diagram somewhere else, you can export it as PNG or SVG.
With Mermaid built into SlidesAI, you can create structured visuals, refine them as your presentation evolves, and keep your diagrams connected to the work you’re already doing.
Frequently Asked Questions
Do I need to know Mermaid syntax to use Mermaid diagrams in SlidesAI?
No. You can edit the Mermaid source directly, but you can also use Ask AI to describe the changes you want or Fix with AI to help resolve syntax errors.
How many Mermaid diagram types does SlidesAI support?
SlidesAI supports 17 Mermaid diagram types, including Flowcharts, Gantt charts, Mindmaps, User Journeys, Architecture diagrams, and more.
Can I edit a Mermaid diagram after creating it?
Yes. You can edit the Mermaid source, labels, structure, and connections and review the changes in the preview before saving.
Can AI change my Mermaid diagram?
Yes. You can use Ask AI to request changes in plain language and review the updated version before saving it.
Can I export Mermaid diagrams?
Yes. You can export diagrams as PNG or SVG files, or copy them as PNG images for use elsewhere.
Will Mermaid diagrams match my presentation’s design?
Mermaid diagrams in SlidesAI can follow the presentation’s colors, fonts, and background.
Can I use Mermaid diagrams in existing presentations?
Yes. You can add Mermaid diagrams to presentations you’re already working on in SlidesAI.
Create Your Next Diagram in SlidesAI
Whether you’re explaining a process, mapping a user journey, documenting a system, or planning a project, Mermaid diagrams give you a flexible way to turn structured information into a visual.
Create the diagram, refine it yourself or with AI, and keep editing it as your presentation changes.
Create your first Mermaid diagram in SlidesAI and turn complex ideas into clear visuals.
