Open source repo

What's inside mermaid-js/mermaid

mermaid-js/mermaid is a TypeScript repo with 232,641 lines written. SeeRepo read mermaid and doesn't recognize any of its technologies yet. AI signed 5.1% of the 11,988 commits of mermaid.

Its description on GitHub: “Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown”

TypeScriptMIT91,011

Read on November 4, 2026, at commit 63333fd.

What the card proved: what it’s built with on the left, what it uses on the right.

See each one with its proof

More on this repo

TechnologiesWhat is mermaid built with?SeeRepo read mermaid and doesn't recognize any of its technologies yet.

+8 Who writes itHow much of mermaid did AI write?5.1%AI signed 5.1% of the 11,988 commits of mermaid.

In figures

lines written: 232,641; The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
files: 670; The product’s, not counting tests.
test files: 505; The files that test the code.
technologies: 16; Each service with the file and line that prove it.

SeeRepo read the facts in its code and kept none of it. AI only helps sort its packages and folders by their names, and never sees its code.

Frequently asked questions

What is mermaid-js/mermaid?

mermaid-js/mermaid is a TypeScript repo with 232,641 lines written. Its description on GitHub: “Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown”

The proof: its page on GitHub

What is mermaid built with?

SeeRepo read mermaid and doesn't recognize any of its technologies yet.

The proof: each service with its file and line

How much of mermaid did AI write?

AI signed 5.1% of the 11,988 commits of mermaid.

The proof: the commits each tool signed

What license does mermaid have?

mermaid is released under the MIT license.

The proof: its page on GitHub

How many stars does mermaid have on GitHub?

mermaid had 91,011 stars on GitHub on November 4, 2026.