Harper – an open-source alternative to Grammarly (writewithharper.com)

Article summary

Harper is a free, open-source grammar checker that respects user privacy by performing checks locally on the device. It is designed as an alternative to Grammarly and offers integrations with various editors and platforms. Harper uses a rules-based approach rather than relying on large language models (LLMs). The tool is available for multiple platforms and is customizable through its open-source nature.

Main themes

• Grammar Checking
• Privacy Concerns
• LLM vs Rules-Based
• Open-Source Development
• Tool Comparison
• Language Processing

What commenters say

• Some users appreciate Harper's rules-based approach and local processing as a more reliable and private alternative to Grammarly's LLM-based features.
• The lack of LLMs in Harper is seen as an advantage due to concerns over consistency and privacy in LLM-based tools.
• Others note that Harper's current capabilities may not match Grammarly's level of grammar checking, requiring further rule contributions.
• There is interest in comparing rules-based tools like Harper with LLM-based tools for grammar checking.
• Some users have experienced a decline in Grammarly's performance since the introduction of AI features.
• The use of LLMs in grammar checking tools can lead to inconsistencies and less accurate suggestions.
• Local, self-hosted language tools are preferred by some for their privacy and customization benefits.
• Harper's effectiveness in catching grammatical errors is variable and may require additional development to reach the level of commercial alternatives.