Editable shapes
Boxes become rectangles, rounded rectangles, diamonds or freeform paths. Arrows become connectors with real arrowheads.
Mermaid → .pptx
Turn Mermaid diagrams into native PowerPoint shapes
Paste Mermaid code, preview it live and download a .pptx where every box, label and arrow is a real editable shape — not a flat picture.
- Runs in your browser
- Native shapes, no images
- smart · faithful · exact
Mermaid to PPTX converter
Paste a diagram, choose a mode, export a presentation.
Mermaid code
Live preview
Made for real slide decks
Nothing is uploaded and nothing is queued: the whole conversion runs locally.
Three fidelity modes
Tidy automation, faithful layout or exact geometry — switch whenever you like before exporting.
Any Mermaid diagram
Flowcharts, sequence, class, state, ER, gantt and timeline diagrams all work, because the converter reads the rendered vector output.
Text stays text
Labels keep their size, weight and alignment as real text runs, including CJK and right-to-left scripts.
Private by design
There is no backend. Your diagram never leaves the browser tab you are working in.
Speaks your language
Ten interface languages, chosen from your browser settings, region and time zone.
How it works
Three steps, about ten seconds.
-
1
Paste Mermaid code
Or start from one of the built-in examples.
-
2
Check the preview
Pick smart, faithful or exact, then adjust slide size and colors.
-
3
Export and keep editing
Open the .pptx in PowerPoint, Keynote, WPS or Google Slides.
Which mode should I use?
Same diagram, three trade-offs.
| Mode | Best for | What changes |
|---|---|---|
| Smart | Clean client-facing slides | Grid snapping, aligned rows, orthogonal connectors |
| Faithful | Sharing the diagram exactly as drawn | Same layout and curves, coordinates rounded |
| Exact | Pixel-perfect hand-off | Nothing — geometry and styling copied as-is |
Frequently asked questions
Are the exported objects really editable?
Yes. Every box is a PowerPoint shape with its own geometry and text body, and every arrow is a connector with an arrowhead. You can drag, resize, recolor and retype them without touching an image.
Do I need to install anything?
No. The converter runs entirely in the browser using a bundled copy of Mermaid, so there is no account, no upload and no plugin.
Which diagram types are supported?
Anything Mermaid can render: flowchart, sequence, class, state, ER, gantt, timeline, mindmap and more. Unusual shapes fall back to freeform geometry so nothing is lost.
Why do some curves become straight lines in smart mode?
Smart mode re-routes connectors as orthogonal elbows to make slides easier to read. Use faithful or exact if you need the original curvature.
Is my diagram uploaded to a server?
No. Conversion happens with the Canvas and file APIs inside your browser. Nothing about the diagram is transmitted.
Does it work on phones?
The page is responsive and usable on tablets and phones, but a wide screen makes editing large diagrams much easier.