Redditors suggest Refine as a strong Grammarly alternative, especially for mac OS users seeking an offline, local-model-based solution. Refine is a mac OS-native app that uses local language models for grammar checks, rewrites, and translations, with no subscription fees or per-token charges. One user stated they canceled their Grammarly subscription after trying Refine, calling it their daily driver for the last year.

Pro Writing Aid is also recommended as a comprehensive tool focusing on writing style and grammar without the push for AI rewrites seen in newer Grammarly versions. Language Tool, an open-source checker focusing on grammar and spelling corrections, is praised for not interfering with personal writing style. Other tools include Clipify, which offers simple grammar and rephrase fixes without bloat, and Harper, described as a barebones open-source grammar checker focused on correcting errors without overstepping.

Quillbot is noted for its effectiveness in grammar checking across multiple languages as a browser plugin and Mac app. For users avoiding AI altogether, human proofreaders or beta readers are highly valued as the best alternative. Redditors express frustration with Grammarly's increased focus on AI features and intrusive rewrite suggestions, citing constant underlines and pop-ups as disruptive to writing flow.

The constant red underlines, suggestions, and popups kept pulling attention away from the actual writing.