Comparison
WavelengthA Mermaid Chart alternative that maps the call while it happens
Mermaid Chart (now at mermaid.ai) builds diagram-as-code from a prompt, a document, or code. Wavelength builds a process map from a live conversation, and it copies the result as Mermaid code. This page lists the facts about both.
We checked Mermaid Chart's pricing page and Mermaid Chart's AI page on October 19, 2026. Check them before you buy.
The short answer
- Mermaid Chart is a diagram-as-code tool with an AI that reads a prompt, a document, or a pasted meeting transcript. The diagram renders in GitHub, VS Code, and Confluence.
- Wavelength listens to the call and draws the process map while people talk. You can copy any flow as Mermaid, so the diagram can still live next to the code.
Side by side
 Mermaid Chart |  Wavelength | |
|---|---|---|
| Free plan | Basic: a small number of diagrams, a diagram size limit, and 15 AI credits | 5 saved flows, 30 mic minutes per month, no card |
| First paid plan | Plus, $10 per user per month, billed annually, with 300 AI credits per year. Premium, $20 per user per month | Starter, $4.99 per month. Pro, $9.99 per month, with a 7-day free trial |
| Map a live call | Not listed on the Mermaid Chart site | Yes. It draws the map live while people talk, from the mic or the Chrome side panel beside the meeting tab |
| From a transcript | Yes. Upload a meeting transcript, a PRD, or notes | Yes. Paste a transcript or upload a recording |
| Diagram types | More than 15, for example flowchart, sequence, ER, Gantt, and C4 | Process maps and flowcharts with people, systems, decisions, and data stores |
| Exports | PNG, SVG, PDF, and .mmd | PNG, PDF, PowerPoint, draw.io, Mermaid, and BPMN 2.0 on every plan |
Mermaid Chart facts come from its own site, checked October 19, 2026. Prices and limits change, so check the vendor page before you buy.
Where each tool is strong
Mermaid Chart writes native Mermaid code in more than 15 diagram types, and it has an MCP server. If your team keeps every diagram in a repository as code, that is its strength.
Where Wavelength fits
A transcript upload happens after the call, so the customer is not there to correct the map. Wavelength draws during the call. The customer sees a wrong step and says so, and the map changes before the call ends. Then copy the flow as Mermaid, and it goes into the repository like any other diagram.
See transcript to flowchart and the Chrome side panel for the two ways to start.
Common questions
Can Mermaid Chart make a diagram from a meeting?
Yes, from a transcript. Its AI page says you can upload a meeting transcript. The site does not mention audio or a live call. Wavelength draws from the live call, or from the transcript after it.
Does Wavelength export Mermaid?
Yes. Copy any flow as Mermaid code on every plan. Wavelength also imports Mermaid code, so you can bring diagrams in.
How much does Mermaid Chart cost?
Plus is $10 per user per month and Premium is $20 per user per month, both billed annually, when we checked on October 19, 2026. Check the Mermaid Chart pricing page before you buy.
What does Wavelength cost?
The Free plan keeps 5 saved flows with no card. Starter is $4.99 per month. Pro is $9.99 per month, with a 7-day free trial.
Other comparisons
See Wavelength vs Whimsical, Wavelength vs Scribe, Wavelength vs Tango, Wavelength vs Eraser, Wavelength vs Lucidchart, Wavelength vs Miro, and the comparison index.
Try it before you decide
Describe a process in the demo and watch the map draw. No account, nothing saved.
Free plan. No card.