proselint

6.5easy start · #22of 30
in Writing Style Checkers

Runs on Linux, self-hosted.

proselint is ranked #22 of 30 in writing style checkers on The Geeks Club. It runs on Linux, Self-hosted. There is a free plan.

proselint plans and pricing

Free Free Open-source command-line prose linter · BSD-3-Clause license github.com · 4 Oct 2026

Sapling Lesson 17.7 StyleMCP Lesson 27.6 DeepL Write Lesson 37.3 Hemingway Editor Lesson 47.2 Vale Lesson 57.2 ProWritingAid Lesson 67.1

Purpose: proselint is a linter for English prose that scans files and detects issues, then prints suggestions for improving the text.
Advice sources: Its checks draw on writing advice associated with authors, editors, usage guides, and literary publications.
Command line: The command-line tool checks files and can output diagnostics as text or JSON.
Customizable checks: Users can enable or disable checks at different levels and apply separate check selections to matching files.
Library use: Python programs can use the LintFile class from proselint.tools to lint text and return suggestions.
Install options: The README documents installation with pip, Fedora, Debian, Ubuntu, Nix, pre-commit, and prek.
Integrations: The project lists Vim through ALE, Emacs through Flycheck, CI/CD through MegaLinter, and Neovim through none-ls.nvim as available integrations.
Older plugins: The README says its IntelliJ, Flymake, Sublime Text, Phabricator Arc, Visual Studio Code, Coala, Danger, and Syntastic plugins are archived or unmaintained.
Configuration limit: The default maximum number of results proselint can output is 1000.
Security information: The repository’s GitHub security page shows no published security advisories.
Support: The project directs users who encounter a problem to open an issue.
License: The project is licensed under the BSD-3-Clause license.
Price from: Free

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