Brandwave

Lucidchart vs Mermaid:Which is more popular?

In September 2026, Lucidchart had more branded searches than Mermaid among diagramming software worldwide. Lucidchart had about 565,000 branded searches, while Mermaid had 55,300. Lucidchart made up 9.3% of all diagramming software searches we track, and Mermaid accounted for 0.91%. When we asked ChatGPT and Google AI Overviews about diagramming software, Lucidchart appeared in all five answers and Mermaid in three. Lucidchart was mentioned before Mermaid in every answer.

Among diagramming software worldwide in September 2026

Who do people search for more?

Lucidchart, about 10 searches for every 1 for Mermaid

Lucidchart 565K searchesMermaid 55.3K searches

Who does AI mention more?

Lucidchart, mentioned in every answer we collected

Lucidchart in 5 of 5Mermaid in 3 of 5

Who does AI recommend more?

Lucidchart, named ahead of Mermaid in every answer

Lucidchart first in 5Mermaid never first

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Top diagramming software in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Lucidchart appeared in all five answers. Mermaid was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Lucidchart was listed before Mermaid in every answer.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. draw.io1st
  2. Lucidchart2nd
  3. Miro3rd
  4. Mermaid4th
  5. Whimsical5th
  6. Excalidraw6th
  7. Microsoft Visio7th
  8. SmartDraw8th
  9. Creately–
  10. Gliffy–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • draw.io5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Miro5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Lucidchart5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Excalidraw3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Mermaid3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Whimsical3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Microsoft Visio2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • SmartDraw1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Creately0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Gliffy0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about diagramming software

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is Lucidchart or Mermaid more popular in search?

This chart shows how often people search Google for Lucidchart and Mermaid by name. Each line represents a brand's share of searches for all ten diagramming software we track, month by month, from English-language searches worldwide.

Lucidchart and Mermaid among diagramming software worldwide, by month

Share of searches by month for Lucidchart, Mermaid. The figures are in the table below the chart.

View monthly share of searches table
Monthdraw.ioMiroExcalidrawLucidchartMicrosoft VisioSmartDrawMermaidCreatelyGliffyWhimsical
Oct 202534.1%33.3%8.2%12.4%8%1.7%1.6%0.61%0.17%0.01%
Nov 202537.3%29.8%9%11.2%8.2%1.8%1.9%0.67%0.15%0.01%
Dec 202537.3%30.1%11%9.2%8.3%1.5%1.9%0.55%0.16%0.01%
Jan 202636.5%29.3%10.7%9%9.9%1.8%2.2%0.44%0.19%0.01%
Feb 202635.6%28.5%10.5%10.7%9.7%2.1%2.1%0.53%0.18%0.02%
Mar 202636.7%29.3%10.8%11.1%8.1%1.8%1.4%0.54%0.16%0.01%
Apr 202636.9%29.5%10.8%11.1%8.1%1.5%1.5%0.44%0.13%0.01%
May 202640.5%26.6%12%10.2%7.3%1.3%1.5%0.4%0.12%0.01%
Jun 202636.6%29.5%13.2%9.4%8.1%1.2%1.6%0.3%0.11%0.02%
Jul 202635.3%28.2%15.6%9.4%8.3%1.4%1.4%0.28%0.13%0.02%
Aug 202635.5%28.2%15.6%9.5%7.9%1.8%1.3%0.28%0.13%0.01%
Sep 202637.6%30%13.5%9.3%6.8%1.5%0.91%0.3%0.09%<0.01%

How has the Lucidchart and Mermaid comparison changed over the last 12 months?

3 findings
  • Lucidchart was ahead of Mermaid in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Lucidchart’s share of searches among diagramming software worldwide moved from 12.4% to 9.3%, and its estimated monthly branded searches moved from 833K to 565K.
  • Across the 12 months ending September 2026, Mermaid’s share of searches among diagramming software worldwide moved from 1.6% to 0.91%, and its estimated monthly branded searches moved from 107K to 55.3K.

How did search popularity change for diagramming software worldwide in September 2026?

2 changes

  1. Mermaid’s share of searches among diagramming software worldwide has lost ground for 3 months in a row, from 1.6% to 0.91% in September 2026.

  2. Estimated monthly branded searches for Lucidchart worldwide fell 32.2% over 12 measured months, from 833K to 565K in September 2026.

How are branded searches counted?

9 search terms

Brandwave collects information about searches that people make online using Lucidchart’s and Mermaid’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Lucidchart

7 branded search terms

  • diagram lucidchart
  • flowchart lucidchart
  • lucidchart
  • lucidchart ai
  • lucidchart app
  • lucidchart diagrams
  • lucidchart software

Mermaid

2 branded search terms

  • mermaid chart
  • mermaid js

How the Brand Demand Index is measured

Other head-to-heads among diagramming software

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