Harper checks your writing fast, without compromising your privacy.

What is it?

Harper is a free English grammar checker designed to be just right. You can think of it as an open-source alternative to Grammarly. I created it after years of dealing with the shortcomings of the competition.

Private

Harper is completely private, in every sense of the word.

Since Harper runs on-device, your data doesn’t go anywhere you don’t want it to.

That means you have 100% certainty we don’t violate your copyright by training large language models.

Harper also intentionally avoids including any kind of generative AI in any part of our processing pipeline.

  • Kissaki@programming.devEnglish
    6·
    1 day ago

    as an open-source alternative to Grammarly

    intentionally avoids including any kind of generative AI in any part of our processing pipeline

    Isn’t that what Grammarly is all about, though? Be better than traditional spellchecking through LLM?

    I assume Harper is entirely Rules based, then? Which inherently means limited to what rules where introduced manually and what the rules cover.