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mermaid-live-editor/README.md
2025-03-16 19:33:45 -07:00

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# Mermaid Live Editor
Edit, preview and share mermaid charts/diagrams.
## Features
- Edit and preview flowcharts, sequence diagrams, gantt diagrams in real time.
- Save the result as a svg
- Get a link to a viewer of the diagram so that you can share it with others.
- Get a link to edit the diagram so that someone else can tweak it and send a new link back
## Live demo
You can try out a live version [here](https://mermaid.live/).
# Contributors are welcome!
If you want to speed up the progress for mermaid-live-editor, join the Discord channel and contact knsv.
## Docker
### Run published image
```bash
docker run --platform linux/amd64 --publish 8000:8080 ghcr.io/mermaid-js/mermaid-live-editor
```
### To configure renderer URL
When building set the MERMAID_RENDERER_URL build argument to the rendering
service.
Example:
Default is`https://mermaid.ink`.
Set to empty string to disable PNG and SVG links under Actions
### To configure Kroki Instance URL
When building set the MERMAID_KROKI_RENDERER_URL build argument to your Kroki
instance.
Default is `https://kroki.io`
Set to empty string to disable Kroki link under Actions
### To configure Analytics
When building set the MERMAID_ANALYTICS_URL build argument to your plausible instance, and MERMAID_DOMAIN to your domain.
Default is empty, disabling analytics.
### To enable Mermaid Chart links and promotion
When building set the MERMAID_IS_ENABLED_MERMAID_CHART_LINKS build argument to `true`
Default is empty, disabling button to save to Mermaid Chart and promotional banner.
### To update the Security modal
The modal shown on clicking the security link assumes analytics, renderer, Kroki
and Mermaid chart are enabled. You can update it by modifying `Privacy.svelte`
if you wish.
### Development
```bash
docker compose up --build
```
Then open http://localhost:3000
### Building and running images locally
#### Build
```bash
docker build -t mermaid-js/mermaid-live-editor .
```
#### Run
```bash
docker run --detach --name mermaid-live-editor --publish 8080:8080 mermaid-js/mermaid-live-editor
```
Visit: <http://localhost:8080>
#### Stop
```bash
docker stop mermaid-live-editor
```
## Setup
Below link will help you making a copy of the repository in your local system.
https://docs.github.com/en/get-started/quickstart/fork-a-repo
## Requirements
- [Node.js](https://nodejs.org/en/) current LTS version
- [pnpm](https://pnpm.io/) package manager. Install with `corepack enable pnpm`
## Development
```sh
pnpm install
pnpm dev -- --open
```
This app is created with Svelte Kit.
## Release
When a PR is created targeting master, it will be built and deployed by Netlify.
The URL will be indicated in a Comment in the PR.
Once the PR is merged, it will automatically be released.