js-beautify vs Ruff
js-beautify
beautifier.io
Ruff
docs.astral.shSide by side
| Figure | js-beautify | Ruff |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Code Formatting Tools | 7.6 (#21) | 7.9 (#12) |
| Configuration | Options can be set through CLI flags, library options, and JavaScript configuration files such as .jsbeautifyrc. | Ruff supports configuration through pyproject.toml, ruff.toml, or .ruff.toml. |
| Editor support | The project page lists related integrations and plugins for editors including Visual Studio Code, Sublime Text, Vim, and Emacs. | The built-in Ruff Language Server provides diagnostics, code actions to fix them, and formatting; the docs recommend pairing it with another Python language server for navigation and autocompletion. |
| Maker | The website credits Einar Lielmanis as creator and Liam Newman as maintainer. | Astral says it builds high-performance developer tools for the Python ecosystem and that its tools are open source and permissively licensed. |
| Purpose | js-beautify reformats and re-indents JavaScript, including bookmarklets and packed scripts. | Ruff is a Python linter and code formatter written in Rust. |
| Security | The opened project pages provide no security or compliance certification details. | Ruff’s rules include a Bandit-derived group for detecting common security issues, including possible vulnerabilities in Python code. |
Plans
In their own words
js-beautify
js-beautify has no write-up on Specifiction yet; its figures are above.
Ruff
Ruff is a Python linter and code formatter written in Rust, available free under a permissive open-source license. It includes more than 900 built-in lint rules, including native versions of popular Flake8 plugin rules, and can automatically correct violations such as unused imports. Its formatter aims to serve as a replacement for Black, though the documentation allows for differences in some cases. The built-in Ruff Language Server supplies diagnostics, fixes, and formatting; the documentation recommends pairing it with another Python language server for navigation and autocompletion. Setup guidance covers VS Code, Sublime Text, PyCharm, and Zed, while CI support includes GitHub Actions, GitLab CI/CD, and pre-commit hooks. Ruff can be installed through uv, pip, pipx, standalone installers, Homebrew, Conda, and other package managers. It supports configuration in pyproject.toml, ruff.toml, or .ruff.toml. A Bandit-derived rule group checks for common Python security issues. Ruff runs on Linux, macOS, and Windows, and is also published as a Docker image. The maker describes it as 10–100x faster than tools such as Flake8 and Black.