Black vs js-beautify
Black
black.readthedocs.iojs-beautify
beautifier.ioSide by side
| Figure | Black | js-beautify |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 1 |
| Spec score · Code Formatting Tools | 8.7 (#1) | 7.6 (#21) |
| Editor support | Documented editor integrations include Emacs, PyCharm and IntelliJ IDEA, Vim, Neovim, Visual Studio Code, SublimeText, and others. | The project page lists related integrations and plugins for editors including Visual Studio Code, Sublime Text, Vim, and Emacs. |
| Integrations | The documentation lists editor and IDE, GitHub Actions, source version control, and doctest formatting integrations. | The README documents embedding the web library using scripts hosted on cdnjs and rawgit. |
| Purpose | Black is an opinionated formatter for Python code that follows PEP 8. | js-beautify reformats and re-indents JavaScript, including bookmarklets and packed scripts. |
Plans
In their own words
Black
Black is a free, MIT-licensed formatter for Python code that follows PEP 8. It reformats whole files in place and uses a default line length of 88 characters. Its limited style choices are intended to keep code consistent across projects; indentation style cannot be configured. After formatting, Black checks whether the abstract syntax tree remains effectively equivalent and raises an error if the check fails. Install it with pip; it requires Python 3.10 or newer. The documentation lists editor integrations including Emacs, PyCharm, IntelliJ IDEA, Vim, Neovim, Visual Studio Code and Sublime Text, as well as GitHub Actions and doctest workflows. Notebook formatting is available with the jupyter extra, though Black skips cells containing certain magics or invalid syntax. It also includes blackd, an HTTP server that binds to localhost by default. Black is primarily a command-line tool and does not provide a Python interface. Stable releases preserve formatting within the same calendar year when the options match.
js-beautify
js-beautify has no write-up on Specifiction yet; its figures are above.