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Flowchart Maker

Enter text with arrow notation to instantly create professional flowcharts right in your browser

フローチャートのテキストを入力

「->」で次のステップへ接続。「?」で終わる行は判断記号。インデントで条件分岐。

記法ガイド(クリックで展開)
Start / 開始→ 開始記号(角丸長方形) End / 終了→ 終了記号(角丸長方形) -> 処理名→ 処理記号(長方形) -> 条件?→ 判断記号(ひし形) [入力データ]→ 入出力記号(平行四辺形)   Yes -> 処理→ 条件分岐(インデント+ラベル)

About Flowchart Maker

The "Flowchart Maker" is a completely free, browser-based flowchart generation tool designed for business process visualization, system flow design, algorithm organization, decision process documentation, and every kind of flowcharting scenario.

Unlike traditional diagramming software that requires dragging and dropping symbols one by one, this tool works with simple text notation. Just write your process flow using arrow notation (->) in the text area, and each step is automatically parsed and rendered with the appropriate symbol— Start/End as rounded rectangles, Process as rectangles, Decision as diamonds, and I/O as parallelograms—all color-coded in a clean flowchart rendered in real time. Conditional branches can be described with indentation, and Yes/No branch labels are displayed automatically.

Completed flowcharts can be downloaded as PNG images or SVG files, ready for pasting directly into PowerPoint, Google Slides, Word, Notion, Confluence, and any other document or presentation tool. SVG format preserves quality at any zoom level, making it ideal for large posters and print materials.

All text parsing, layout calculation, and rendering runs entirely within your browser's JavaScript engine, so nothing you type is ever sent to an external server. You can safely create flowcharts containing confidential business processes, new system designs, and other sensitive information.

How to use Flowchart Maker

  1. Enter your flowchart content in the text area using arrow notation. Use '->' to connect to the next step. Lines ending with '?' become Decision diamonds, text wrapped in '[...]' becomes I/O parallelograms, and 'Start/End' keywords are automatically recognized as terminal symbols.
  2. Click the 'Generate Flowchart' button to parse the text and display an auto-laid-out flowchart. Conditional branches are written with indentation, like 'Yes -> Process B' and 'No -> Process C'.
  3. Use the 'Download PNG' or 'Download SVG' button to save your flowchart as an image file for use in business manuals, system design documents, and presentations.

Benefits of Flowchart Maker

  • [Instant Flowcharts from Text Input Alone] No need to manually place shapes or connect arrows. Just enter text with arrow notation (->) and each step type is automatically identified, generating a beautifully laid-out flowchart instantly. The keyboard-only workflow lets you quickly write out ideas and business flows and visualize them immediately.
  • [5 Symbol Types Auto-Detected] Start/End (rounded rectangles), Process (rounded squares), Decision/Branch (diamonds), and I/O (parallelograms) are all automatically identified and rendered following JIS/ISO standard symbols. Even without knowing flowchart drawing rules, simply writing text produces professional flowcharts.
  • [High-Quality Export in Both PNG and SVG] PNG is perfect for sharing via email and chat. SVG is a vector format that scales without quality loss, ideal for print materials and large-screen presentations. Both can be downloaded with one click and pasted directly into PowerPoint, Google Slides, Notion, and more.
  • [100% Browser Processing Keeps Confidential Data Safe] Everything from text parsing to flowchart rendering runs entirely within your browser. No input data is ever sent to an external server, so you can safely create and share flowcharts containing internal business processes, new system designs, and other sensitive information.

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