The short version: for a free fishbone diagram template, use Miro or Canva if your team will work through causes together on a whiteboard, Venngage if you want a polished diagram you can restyle, Vertex42 for printable cause and effect worksheets, and EdrawMax for editable examples. Miro and Venngage name a free plan on their own pages. The diagram shows possible causes, so test them before you act.
A fishbone diagram is one of my favourite ways to stop a team arguing about the first cause that comes to mind. You write the problem at the head, then work back through everything that might be feeding it. The template matters less than how you run the session, but the right one does make it easier. Here's where to find a free one.
Five fishbone diagram sources
In no particular order:
- Canva: best for a drag-and-drop fishbone you can work on together in Canva Whiteboards.
- EdrawMax: best for editable examples and a clear explanation of what the diagram is for.
- Miro: best for a structured team brainstorm that maps every factor behind an issue.
- Venngage: best for a designed diagram where you can add or remove causes and change colours and fonts.
- Vertex42: best for cause and effect worksheets you can download as PDFs and print.
Cause and effect templates compared
| Source | Best for | Free plan (as of Nov 2026) |
|---|---|---|
| Canva | Collaborative whiteboard fishbones | Not stated |
| EdrawMax | Editable examples with an explanation | Not stated |
| Miro | Structured team brainstorming | Yes |
| Venngage | Designed diagrams you can restyle | Yes |
| Vertex42 | Printable PDF worksheets | Not stated |
Pages and plans change, so check the vendor's own page before you rely on any limit.
The catch: a whiteboard and a worksheet suit different sessions
The fishbone templates out there fall into two camps, and mixing them up is the most common way a root cause session falls flat.
The first camp is the shared whiteboard. Miro says its templates guide your team through a structured brainstorming session, so you can map out all the potential factors contributing to an issue. Canva says Canva Whiteboards gives you editable templates, visualisation and collaboration tools, and all the space you need to get to the meat of an issue. These suit a team that's spread out, or a session where lots of people are adding ideas at once.
The second camp is the worksheet. Vertex42 says its cause and effect worksheets are PDF files you can download and print instantly. That's perfect for a room with a table, some pens and a handful of people who'll think better away from their laptops.
There's a second catch hiding in EdrawMax's explanation. It says a fishbone diagram organises possible causes of a stated problem into categories, and supports root cause analysis by structuring hypotheses, but that evidence and testing are needed to establish the actual cause. In plain words: the diagram gives you a list of suspects, not a verdict.
How to run a fishbone session
- Write the problem at the head of the fish as one clear, specific statement.
- Choose your template. A shared whiteboard for a remote or large team, a printed worksheet for a small group in a room.
- Agree your categories, which become the main bones. EdrawMax describes the diagram as organising possible causes into categories.
- Let everyone add possible causes under each category. Miro's templates are built for exactly this kind of structured brainstorm.
- Keep asking why behind each cause until you reach something you could fix.
- Pick the most likely causes and plan how you'll check them, because EdrawMax says evidence and testing are needed before you know.
- Assign an owner and a date to each check, so the session leads somewhere.
If you're new to running this kind of session, my tips for a successful brainstorming session cover the facilitation side.
Editing a fishbone without fighting the arrows
Anyone who's tried to build a fishbone in a word processor knows the pain: you add one cause and everything shifts. This is where the template choice makes a real difference.
Venngage says its templates make creating a fishbone diagram easy whatever your design skills, and that you can add or remove causes, adjust element sizes and choose from various colours and fonts. Canva uses a drag-and-drop editor. Vertex42 takes a different route: it admits its spreadsheet template isn't angled like most fishbone diagrams, but says it's very simple to edit and customise, rather than constantly moving and aligning text boxes and arrows. If you care more about content than looks, that trade is worth it.
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After the fishbone: turning causes into actions
A finished fishbone is a starting point. Miro says its template helps you break down complex issues into root causes so you can work towards targeted solutions, and that last step is where most sessions run out of steam. Take the two or three causes the team thinks are most likely, decide how you'll test each one, and put those checks on a simple plan with names and dates against them. If you like working in a spreadsheet, this project timeline spreadsheet template is an easy place to track them.
Then come back to the diagram once the evidence is in. Cross off the causes that didn't hold up, and you'll often find the real fix is smaller than the problem looked.
Miro's free plan is pitched at small teams getting started, and Venngage's free plan at getting started with your first few designs. If you're comparing whiteboards more widely, these online whiteboard tools are worth a look.
Frequently asked questions
Where can I get a free fishbone diagram template?
Miro, Canva, Venngage, EdrawMax and Vertex42 all offer fishbone templates or examples. Miro and Venngage name a free plan on their own pages.
What is a fishbone diagram also called?
EdrawMax says a fishbone diagram is also called an Ishikawa or cause-and-effect diagram.
Can I print a fishbone diagram?
Yes. Vertex42 says its cause and effect worksheets are PDF files you can download and print instantly.
Can a team fill in a fishbone diagram together?
Yes. Miro says its templates guide your team through a structured brainstorming session, and Canva Whiteboards includes collaboration tools.
What goes on the bones of a fishbone diagram?
EdrawMax says the diagram organises possible causes of a stated problem into categories, so each main bone is a category and the smaller ones are possible causes.
Does a fishbone diagram prove the root cause?
No. EdrawMax says it supports root cause analysis by structuring hypotheses, and that evidence and testing are needed to establish the cause.
