Flowchart Fun
Flowchart Fun generates flowcharts and diagrams from text through a web application.
About Flowchart Fun
Flowchart Fun is an open-source web application that generates flowcharts and diagrams from plain text. Rather than drawing nodes by hand, users describe a structure in a short text format, and the app renders it as a diagram; the project's example input reads "Node A goes to: Node B and: Node C goes back to: (Node A)". The interface is built with React and cytoscape.js, and the repository is published under the MIT license.
The GitHub repository is aimed at both users and developers. It documents local setup, unit testing with Jest and end-to-end testing with Playwright, and a translation workflow based on .po files in the app's locales directory. Premium features rely on external services: developing them locally requires accounts on Vercel, Supabase, Stripe and Sendgrid, and deploying the login-enabled app requires a Pro Vercel account because it uses more than 12 serverless functions. Pricing for the hosted service is not stated in the repository.
Key features
- Generates flowcharts and diagrams from plain text input
- Text syntax supports branches and links back to earlier nodes
- Built with React and cytoscape.js
- Translations added through .po files in the locales directory
- Jest unit tests and Playwright end-to-end tests
- MIT licensed with an open contribution process on Discord
Best for: People who want to turn written plans, outlines or processes into flowcharts quickly, and developers interested in contributing to or building on an open-source React diagram tool.
Good for
- Open source under an MIT license
- Turns short text descriptions into diagrams instead of requiring manual drawing
- Repository documents local setup, testing and translation workflows
Watch out for
- Developing premium features requires accounts on Vercel, Supabase, Stripe and Sendgrid
- Deploying the login-enabled app requires a Pro Vercel account due to the number of serverless functions
- Pricing for the hosted service is not stated in the repository
Flowchart Fun at a glance
- Category
- Design & Creative › Charts & Data Visualization
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Charts & Data Visualization
Flowchart Fun alternatives
Tools and sites you could use instead, ranked by how closely they match.
Mermaid generates diagrams such as flowcharts and sequence diagrams from text using syntax similar to Markdown.
Open source
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Kroki CLI converts diagram files through the Kroki service, inferring diagram type from the file extension by default.
Open source
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Flowchart Fun converts text into flowcharts, mind maps, and process diagrams through an online text-based editor.
DiagramGPT generates diagrams from text prompts, with the project page describing diagram workflows for teams.
PlantUML generates UML and other diagrams from textual descriptions and exports results in formats including PNG, SVG, and PDF.
Kroki provides one API for generating diagrams from textual descriptions using libraries such as Mermaid, PlantUML, Graphviz, and D2.
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Flowchart Fun FAQ
What does the input text look like?
A node is named on one line, and connections are described on following lines using phrases such as "goes to:", "and:" and "goes back to:" pointing at another node or a node in parentheses.
How do I run the project locally?
Clone the repository, copy .env.example to .env and add environment variables, run pnpm install, build the shared and formulaic packages, then use vercel dev. Running without login features is possible with pnpm dev.
How can I contribute a translation?
Add translations to the .po files under /app/src/locales/[language]/messages.po, then run pnpm -F app compile. The project asks contributors to share plans in its Discord.
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