Stream terminal output with ansi codes into nicely formatted HTML

Imagine you have terminal output, let's say from a test runner. It looks like this

You can pipe the output through term-to-html to create equivalent HTML file. Same output (HTML page was white background)

The output could be used to do visual testing against CLI output

npm i -g term-to-html
mocha spec.js --reporter spec | term-to-html > mocha.html

Note: many applications detect non-interactive terminal and turn off colors. Usually you can enable colors using an environment variable, like FORCE_COLOR=2 in chalk library.

You can output HTML page with dark background using --theme dark CLI argument

<my program> | term-to-html --theme dark

const termToHtml = require('term-to-html')
const html = termToHtml.strings(stringWithAnsi, termToHtml.themes.dark.name)

There are E2E tests and you can observe the output by running

FORCE_COLOR=2 npx mocha spec.js --reporter spec | ./bin/term-to-html.js

Author: Gleb Bahmutov <[email protected]> © 2020

• @bahmutov
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License: MIT - do anything with the code, but don't blame me if it does not work.

Support: if you find any problems with this module, email / tweet / open issue on Github

Copyright (c) 2020 Gleb Bahmutov <[email protected]>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

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