ASCII Diagram Editor
ASCII Diagram Editor
Create ASCII art diagrams, network topology maps, and text-based flowcharts. Insert pre-built snippets (boxes, arrows, servers, databases), start from common templates, and download as .txt.
Snippets
Click to insert at cursor
Templates
Replaces editor content
+-------------+ +-------------+ +-------------+
| Client |------>| Load Bal. |------>| Server 1 |
+-------------+ +-------------+ +-------------+
|
v
+-------------+
| Server 2 |
+-------------+ASCII Diagram Editor
Create ASCII art diagrams, network topology maps, and text-based flowcharts. Insert pre-built snippets (boxes, arrows, servers, databases), start from common templates, and download as .txt.
Common uses
- Draw a server → database → client architecture diagram
- Create a flowchart with boxes and arrows in text
- Export an ASCII diagram as a PNG for a ticket
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Frequently asked questions
How do I draw a diagram in plain text?
Start from a template (Client-Server, Microservices, Database Tier, CI/CD Pipeline) or insert snippets such as boxes, arrows, servers and databases into the text editor, then edit by hand. The result can be pasted into code comments or a README.
Can I export an ASCII diagram?
Yes, you can download it as a .txt file or as a PNG image.
Why use an ASCII diagram instead of an image?
Plain text diagrams live in source files, diff cleanly in version control and render anywhere a monospace font does.
Is my data uploaded to a server?
No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.