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Kroki

Creates diagrams from textual descriptions. Supports Mermaid, PlantUML, GraphViz, and 20+ formats.

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Demo online
MIT★ 3000

Open the official app on kroki.io

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What's next with Kroki?

Choose how you want to get started.

Use it free

Open the official tool or demo — no account needed.

Free

Self-host it

Run the open-source version on your own infrastructure.

Open

What is Kroki?

Kroki is Creates diagrams from textual descriptions. Supports Mermaid, PlantUML, GraphViz, and 20+ formats. Source: https://github.com/kroki. License: MIT.

How it works

Kroki works by processing your input directly. Creates diagrams from textual descriptions. Supports Mermaid, PlantUML, GraphViz, and 20+ formats.

How to use it

  1. 1Open the Kroki tool, enter your input, and get your result instantly.

What it can do

  • Formatting
  • AI Tools

Use cases

Assumptions and limitations

Assumptions

  • source: https://github.com/kroki
  • license: MIT — free to use
  • privacy: Opens an external demo

Limitations

  • External demo — opens a third-party website that you do not control.
  • Relies on an external source (github.com); availability depends on that service.
  • Focused on the diagram tools category: Creates diagrams from textual descriptions. Supports Mermaid, PlantUML, GraphViz, and 20+ formats..

Understanding the result

Creates diagrams from textual descriptions. Supports Mermaid, PlantUML, GraphViz, and 20+ formats.

Tool details

  • Clearly flagged when a network request is needed.
  • No account, no sign-up, and no tracking of your content.
  • Powered by kroki (MIT).
Built with
kroki (https://github.com/kroki)
License
MIT
Runs locally
No — requires a network request
Verification
Not yet verified
Input
Text
Output
Output
Open-source source & license

Built with https://github.com/kroki. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.

Built with
kroki
License
MIT
View source on GitHub

Open-source project

License: MITSource: this projectOfficial site

OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.

References

Frequently asked

What is Kroki?

Creates diagrams from textual descriptions. Supports Mermaid, PlantUML, GraphViz, and 20+ formats.

Where can I find the source code?

The source is available at https://github.com/kroki

What license is it?

MIT.

Is it free to use?

Yes, it is open-source and free to use.

Spotted something wrong with Kroki, or want to maintain it? See how to help.