Ginger Software
by Ginger Software
Free
Grammar and sentence rephraser with a personal trainer mode for ESL learners.
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Best Grammar Checkers
Real-time grammar, spelling, and punctuation correction tools.
Grammarly
by Grammarly Inc.
Free
The most widely used writing assistant — grammar, tone, and AI rewrites.
LanguageTool
by LanguageTooler GmbH
Free
Open-source grammar checker supporting 30+ languages and self-hosting.
Linguix
by Linguix Inc.
Free
Grammar checker with team writing stats and reusable snippet templates.
Outwrite
by Outwrite
Free
Grammar checker with AI paraphrasing and a built-in structure improver.
PaperRater
by PaperRater LLC
Free
Free academic proofreader with AI-powered grammar check and plagiarism detection.
ProWritingAid
by Orpheus Technology Ltd.
Free
Deep writing analysis with 20+ reports for serious writers and authors.
QuillBot
by Course Hero
Free
AI paraphrasing tool with seven rewrite modes and a plagiarism checker.
Slick Write
by Slick Write
Free
Free browser-based writing analyser with detailed style and flow stats.
WhiteSmoke
by WhiteSmoke Ltd.
$5/mo
Multi-language grammar checker with a built-in translator for 55 languages.
Wordtune
by AI21 Labs
Free
AI sentence rewriter that offers multiple alternatives at the click of a button.