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Harper vs proselint

The same facts for both, read from GitHub every night, and the relation a person reviewed.

Harperproselint
LanguageRustJavaScript
LicenceApache-2.0BSD-3-Clause
Stars16k4.6k
Latestv2.12.0v0.16.0
Last push2026-10-062026-09-04
Release cadenceabout 12 days between releasesabout 324 days between releases
Active contributors28 commit authors on the default branch in the last 90 days0 commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace Grammarly. Alternatives to Grammarly →

    PartialHarperEnglish grammar checking offline, in the editor and the browser.

    PartialproselintRule-based checks for English usage, cliches and jargon, from the command line or an editor plugin.