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ASCII Flowchart Generator

Generate text-based flowcharts from node and edge definitions. Supports box, diamond, rounded, and parallelogram shapes. Includes a simple DSL for quick chart creation. Copy-paste ready ASCII art. Runs entirely in your browser — your data never leaves your machine.

ascii flowchart diagram text generator ascii-art

Published June 1, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Define flowchart nodes with labels and shapes, then connect them with edges. The tool renders a complete ASCII art flowchart with boxes, diamonds, arrows, and edge labels. Switch between visual editor and DSL modes.

Features

  • 4 node shapes: box, diamond (decision), rounded (terminal), parallelogram (I/O)
  • Labeled edges: add labels like “yes” / “no” to decision branches
  • DSL mode: define charts with simple text syntax ([id] Label, id1 -> id2)
  • Visual editor: add nodes and edges with dropdowns and buttons
  • Validation: catches duplicate IDs, missing references, empty labels
  • Copy output: one-click copy of the generated ASCII flowchart
  • 5 examples: simple flow, decision, login, CI/CD pipeline, data processing
  • Private: runs entirely in the browser — no data transmitted

Use Cases

  • Adding flowcharts to code comments and documentation
  • Creating diagrams for README files and wikis
  • Quick process visualization in plain-text environments
  • Documenting algorithms and decision logic
  • Sharing diagrams in chat, email, or terminal