proselint amperser/proselint

Python command-line linter for English prose that flags usage, cliché and style problems based on advice from well-known editors and usage guides.

Creator kit + Compare GitHub ↗ Install guide (official) ↗

proselint at a glance

Checked 15 Oct 2026

proselint is a linter for English prose only (v0.16.0, November 2025; the GitHub repo is a mirror). It flags usage errors, clichés, jargon and other style issues drawn from guides such as Garner's Modern English Usage, and runs as a CLI or pre-commit hook. BSD-3-Clause. It is not a spelling or full grammar checker and does no AI rewriting, tone changes or plagiarism checks; there is no browser extension.

Cite this pageRepoQuarry. “proselint.” Checked 15 Oct 2026. https://repoquarry.dev/projects/proselint

How much of Grammarly does it replace?

1 of 5 jobs. English style and usage advice from the command line; no spelling, grammar engine, AI rewrite or browser use.

Grammar and spelling checks Not covered

Style and clarity suggestions Partial replacement

AI rewriting and tone changes Not covered

Works in the browser and other apps Not covered

Plagiarism check Not covered

For grammar and spelling checks, AI rewriting and tone changes, works in the browser and other apps, plagiarism check, see other Grammarly alternatives. You may also need to build an interface, an API server and hosting yourself.

Facts, with sources

Every answer links to where we found it. We read the documentation; we did not install it.

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QuestionAnswerSourceChecked

Runs on my machine? Yes, command-line tool all in a neat command-line utility that you can integrate into other tools, scripts, and workflows. github.com · proselint#readme ↗ 1d ago

Code licence BSD-3-Clause github.com · LICENSE.md ↗ 1d ago

Model weights licence No separate model weights github.com · proselint#readme ↗ 1d ago

Commercial use Yes, BSD-3-Clause github.com · LICENSE.md ↗ 1d ago

Paid services needed? None required github.com · proselint#readme ↗ 1d ago

Hardware Not documented Know the answer? —

Operating systems Packaged for Fedora, Debian, Ubuntu and Nix; installs with pip elsewhere, Windows and macOS not documented sudo apt install python3-proselint github.com · proselint#installation ↗ 1d ago

Setup effort Easy, pip install proselint pip install proselint github.com · proselint#installation ↗ 1d ago