Fishbone Diagram Maker

• Free online fishbone (Ishikawa / cause-and-effect) diagram maker — define a problem and analyze causes to support root-cause analysis and brainstorming
• Built-in standard categories for People, Methods, Machines, Materials, Measurement and Environment, with free add/remove of categories and causes
• Generates a professional fishbone diagram in real time, identifies problem, category and cause nodes, and exports as a high-resolution PNG with one click
• Ideal for quality management, root-cause analysis, process improvement and team collaboration

1. Open the tool page — no download or installation needed, and a sample problem loads automatically
2. Enter the core problem to analyze in the "Problem" input box
3. In the category manager, click "Add Category" to create cause categories, and add, edit or remove cause items under each; you can also click "Load Example" to get started quickly
4. The fishbone updates in real time; when it is ready, click "Export Image" to save it as a PNG

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device
• Fill in a problem and add at least one category with a name for the fishbone to appear

Free online Fishbone (Ishikawa/Cause-and-Effect) Diagram maker. Define problems and analyze causes for root cause analysis and brainstorming. Supports 6 standard categories (Manpower, Methods, Machines, Materials, Measurements, Environment). Freely add categories and causes, generate professional fishbone diagrams in real-time, and export as images.

Open the tool page — no download or installation needed, and a sample problem loads automatically Enter the core problem to analyze in the "Problem" input box In the category manager, click "Add Category" to create cause categories, and add, edit or remove cause items under each; you can also click "Load Example" to get started quickly The fishbone updates in real time; when it is ready, click "Export Image" to save it as a PNG

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device Fill in a problem and add at least one category with a name for the fishbone to appear

Yes, Fishbone Diagram Maker is completely free. No download or installation required — it runs right in your browser.