Mermaid Styler

Mermaid styling tool · local-first

Style Mermaid. Export the image.

Paste the Mermaid an AI gave you, adjust the colors and typography, then download a polished SVG or PNG for Jira, docs or your next pull request.

Open the app See what it does

Rendered in your browser · no source upload · SVG + PNG

mermaid-styler / untitled-diagram rendered
sourceflowchart LR
flowchart LR
  A[AI source] --> B{Style it}
  B --> C[Shareable SVG]
38 chars · Mermaid
artifact stagepreview
Mermaid Styler workflow diagram AI source flows into styling and becomes a shareable SVG. SOURCE AI code STYLE Your system OUTPUT SVG / PNG registration pass · ready to share
stylecustom
preset
LightDark
colors
background
paper⌄

How it works

One clean path from Mermaid to a shareable image.

Keep the source you already have. Mermaid Styler gives it a visual system without making you learn theme configuration first.

  1. 01

    Paste the source

    Bring the Mermaid syntax an AI already helped you write.

  2. 02

    Tune the visual system

    Set the surface, nodes, lines, type and emphasis without touching theme config.

  3. 03

    Take the artifact

    Copy or export an SVG or PNG that is ready for Jira, docs or a pull request.

Private by default

Nothing to upload. Nothing to manage.

Mermaid renders in your browser. There is no account, project database or diagram history in the first version — just a fast path from source to an exportable artifact.

LOCAL RENDERING ONLY

Under the hood

Focused on the artifact.

Interface
Astro + TypeScript + vanilla client scripts
Renderer
Mermaid running in the browser
Artifacts
Sanitized SVG · PNG through canvas
Deployment
Static output · Dokploy-ready