HTML: Graphviz:

A tool that allows you to convert NMAP XML output to excel/html/csv/json/markdown/dot/sqlite/d2.

go install github.com/vdjagilev/nmap-formatter/v3@latest
cd nmap-formatter
go build

All other options can be found on Installation Wiki page.

nmap-formatter [html|csv|md|json|dot|sqlite|excel|d2] [path-to-nmap.xml] [flags]

Or alternatively you can read file from stdin and parse it

cat some.xml | nmap-formatter json

Convert XML output to nicer HTML

nmap-formatter html [path-to-nmap.xml] > some-file.html

or Markdown

nmap-formatter md [path-to-nmap.xml] > some-markdown.md

or Excel

nmap-formatter excel [path-to-nmap.xml]

or JSON

nmap-formatter json [path-to-nmap.xml]
# This approach is also possible
cat nmap.xml | nmap-formatter json

or Graphviz (dot)

cat example.xml | nmap-formatter dot | dot -Tsvg > test.svg
# open test.svg with browser

or SQLite

cat example.xml | nmap-formatter sqlite --sqlite-dsn nmap.sqlite
# open nmap.sqlite with any database tool

or D2 lang

cat example.xml | nmap-formatter d2 | d2 - example.png
# Converts nmap.xml to d2 language and then to png

More examples can be found on Usage Wiki page

• -f, --file [filename] outputs result to the file (by default output goes to STDOUT)
• --help display help message
• --version display version (also can be used: ./nmap-formatter version)
• --skip-down-hosts skip hosts that are down (by default true)

It's also possible to change various output options. More examples on Usage Wiki Page - Flags.

Screenshots of various formats available here

Examples on how to use this project as a library in golang: Use as a library Wiki page