OpenFlowKit 2

OpenFlowKit 2 is an open-source diagramming studio for builders to draw architecture diagrams, write them as code, or hand them to an AI agent.

OpenFlowKit is an open-source diagramming studio that allows builders to create architecture diagrams by drawing, writing code, or using an AI agent. Users can paste a public GitHub repository URL to automatically map its files, services, and connections, linking every arrow to the specific line of code. It supports text formats like Mermaid, D2, and Structurizr, and automatically matches over 2,000 AWS, Azure, Google Cloud, CNCF, and developer icons based on node labels. The tool includes a GPU-powered canvas, an ELK auto-layout engine, and an MCP server with 29 tools for AI agents like Claude Code and Cursor. Documents live entirely in the browser without requiring an account, and private repositories can be mapped locally using the CLI. It is built as a static application that can be self-hosted or deployed anywhere that serves HTML.

OpenFlowKit 2 at a glance

Best for: Software engineer, Designer
Runs on: Web, CLI, VS Code, API, self-hosted, open source
Pricing: Free
Released: October 2026
Category: AI chat assistant
Website: openflowkit.com

Key features

Draw architecture diagrams by hand or write them as code
Paste public GitHub repositories to automatically generate maps
Link diagram arrows directly to source code lines and files
Match 2,000 plus cloud and developer icons automatically from labels
Use 29 MCP tools to let AI agents edit diagrams live
Support Mermaid, D2, and Structurizr DSL text formats
Run ELK auto-layout that respects pinned nodes off the main thread
Export animations as animated SVG, GIF, MP4, or WebM

Use it for

Mapping public and private GitHub repositories to architecture maps
Creating system diagrams using AI agents like Claude Code or Cursor
Converting Mermaid, D2, or Structurizr text into editable visual canvases
Animating system walkthroughs for presentations or documentation
Designing infrastructure layouts with automatic cloud icon matching

Companions

Tools that articles about OpenFlowKit 2 recommend using with it, each with its job.

Context7 — Provides up-to-date documentation for AI agents and code editors.
Ollama — Run local models at zero marginal cost, with code kept on your machine.
OpenRouter — Access over 500 models and 80 providers through one unified API.
Daytona — Runs sessions in isolated sandboxes synced to git branches.
Composio — Equips AI agents with tools, managed user auth, and sandboxes across 1,500+ apps
Oh My OpenCode Slim — Lightweight multi-agent orchestration and background tasks.

Alternatives to OpenFlowKit 2

OpenCode — Works with 75+ model providers, local models, and existing subscriptions
Genkit — Provides unified APIs and local developer tools for AI application workflows.
Yantra — Automatically lays out diagrams and checks them with a validator before export.
Draw.io Skill — Synchronizes diagrams with code changes without discarding manual layout adjustments.
OpenHeart — Generates 14 UML projections and 5 compiler pipeline graphs directly from repositories.
Flowstep — Generates interactive multi-screen UI directly from text prompts, specs, or code.
Architecture Canvas — Generates editable architecture diagrams locally from your uploaded documents and chat.
Blender AI Addon — Generates working bpy code from text and images with automatic error fixing.
Open WebUI — Run AI on your own terms with complete data privacy and self-hosting control.
Diagramly — Generates hand-drawn diagrams instantly from plain text or AI prompts without sign-up.
Diagram Design — Generates editorial-quality visual types matched to brand colors and typography in seconds.
AI SDK — Switch providers easily and stream real-time responses without custom parsing.

All OpenFlowKit 2 alternatives