ecmarkup

v20.0.0

Custom element definitions and core utilities for markup that specifies ECMAScript and related technologies.

ecmascript javascript specs specifications markup markdown html code

A web component-based source format for ECMAScript and related specifications. See the project page for details.

Requires node 8 or above.

npm install ecmarkup
ecmarkup in.html out.html

There is also an auto-formatter:

emu-format --write spec.html

See its --help for more details.

npm i ecmarkup

Source Code