LanguageTool is an open-source grammar and style checker supporting 30+ languages. It detects grammar errors, punctuation issues, and style inconsistencies. Multilingual writers and non-native speakers use it for polished writing in multiple languages.

Grammarly Business provides enterprise-grade AI writing assistance with brand voice customization, style guides, and team analytics. Organizations use it to ensure consistent professional communication across departments.

Jenni AI is an AI writing assistant designed for academic and professional writing. It offers citation generation, paraphrase suggestions, and autocomplete features for research papers, essays, and reports. Students and researchers use it to accelerate writing while maintaining academic integrity.

Wordtune Pro is an AI writing assistant that rewrites sentences with contextual understanding, offering tone adjustments, length changes, and citation suggestions for professional writing.

AutoCrit is an AI editing platform designed specifically for fiction writers. It analyzes manuscripts for pacing, dialogue strength, word choice, and compares writing to published genre works.

Hemingway Editor Plus is the enhanced version of the classic readability tool. It highlights complex sentences, passive voice, and adverbs while suggesting clearer alternatives. Writers and editors use it for concise, impactful prose.