How do I visualize an n8n workflow without opening n8n?

Export your workflow as JSON from n8n (workflow menu → Download), then paste the JSON into this free n8n workflow visualizer. It renders an interactive flowchart showing all nodes, their types, connections, branching paths, and execution order — without needing access to an n8n instance.

Can I share an n8n workflow diagram as an image?

Yes. After visualizing your workflow, use the Export PNG button to download the flowchart as a PNG image. You can also use the Copy Mermaid button to get the Mermaid.js diagram code, which can be embedded in GitHub READMEs, Notion, or documentation sites.

n8n Workflow Visualizer Online Free — View n8n Workflow as Flowchart

n8n Workflow Visualizer — See Your Automation as a Flowchart

n8n workflow JSON files are powerful but difficult to read as raw text. When you're reviewing a shared community workflow, documenting your automation for a team, or debugging a complex multi-branch workflow, a visual flowchart is far more useful than staring at hundreds of lines of JSON.

This free n8n workflow visualizer converts any workflow JSON into a color-coded interactive diagram — trigger nodes in orange, action nodes in blue, logic/branch nodes (IF, Switch) in yellow, AI/LLM nodes in purple, and data transform nodes in cyan. Every connection is drawn with directional arrows showing the execution flow. Export the diagram as a PNG for documentation, or copy the Mermaid.js code to embed in GitHub READMEs, Notion pages, or team wikis.

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Node Type Color Coding

Every node in the diagram is automatically categorized and color-coded:

🔴 Trigger nodes — Webhook, Schedule, Manual, Email trigger, Cron
🔵 Action nodes — HTTP Request, Gmail, Slack, Telegram, Airtable, Sheets
🟡 Logic nodes — IF, Switch, Merge, SplitInBatches, Wait
🟣 AI/LLM nodes — OpenAI, LangChain, Anthropic, AI Agent
🔵 Data nodes — Set, Code, Function, Item Lists, JSON parse

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Mermaid.js Export

The Mermaid.js export lets you embed your n8n workflow diagram anywhere:

GitHub READMEs — GitHub natively renders Mermaid diagrams in markdown
Notion pages — paste as a code block with language set to mermaid
GitLab wikis — supports Mermaid rendering natively
Documentation sites — Docusaurus, MkDocs, and GitBook all support Mermaid
Confluence — via the Mermaid Diagrams for Confluence app
The generated code uses flowchart LR (left-to-right) or flowchart TD (top-down) layout

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Visualizing Branching Workflows

n8n IF and Switch nodes create branching paths that are hard to follow in raw JSON. The visualizer renders branching clearly:

IF nodes — shows two output branches labeled true and false
Switch nodes — shows each output branch with its index
Merge nodes — shows multiple inputs converging to a single path
SplitInBatches — shows the loop-back connection path
Each connection arrow is directional, showing exactly where data flows

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Use Cases for n8n Workflow Visualization

Team documentation — share a visual diagram instead of raw JSON with non-technical team members
Code review — review a teammate's workflow visually before merging changes
Debugging — trace the execution path to find where data stops flowing
Community sharing — add a diagram to your n8n community post to help others understand your workflow
Client presentations — show clients what their automation looks like in a clean visual format
Learning — study complex community workflows by visualizing them first

Frequently Asked Questions — n8n Workflow Visualizer

How do I visualize an n8n workflow without logging into n8n? +

Export your workflow from n8n as a JSON file (workflow menu → Download), then paste the JSON content into this visualizer and click Visualize Workflow. The entire rendering process happens in your browser — you don't need an n8n account, server access, or any installed software. This is especially useful for reviewing shared community workflows before importing them, or for visualizing workflows from instances you don't have access to.

What is Mermaid.js and how do I use the exported diagram code? +

Mermaid.js is a JavaScript-based diagram and flowchart tool that uses a simple text syntax to define diagrams. It's supported natively in GitHub markdown, GitLab, Notion (as code blocks), Obsidian, and many documentation platforms. To use the exported code: copy it from the Mermaid Code panel, then paste it into a GitHub README inside a code block tagged with mermaid, or use the Mermaid Live Editor at mermaid.live to preview and further customize it.

Why don't the node positions match what I see in n8n? +

This visualizer uses an auto-layout algorithm rather than the exact pixel positions stored in the n8n workflow JSON. This is intentional — n8n positions are optimized for the n8n canvas grid and often produce overlapping or hard-to-read diagrams when rendered on a different viewport. The auto-layout produces a cleaner left-to-right or top-down flow that's easier to read, especially for documentation purposes. Toggle between horizontal (LR) and vertical (TD) layouts using the button in the diagram toolbar.

n8n Workflow Visualizer