Best AI grammar checkers

13 tools for spelling, grammar, style checks, compared side by side.

The ranked list

  1. 1

    Grammarly

    Grammar and proofreading

    Grammar and proofreading

    Free plan

    Offers proofreading, tone suggestions and paragraph rewrites, with a free plan of 100 AI prompts. Pro adds plagiarism and AI-generated text detection, and it also does rewriting and paraphrasing.

  2. 2

    LanguageTool

    Grammar and proofreading

    Grammar and proofreadingWeb appBrowser extensionDesktop

    Free plan

    LanguageTool: AI grammar, spelling, punctuation and style checker in 30+ languages, with a paraphraser, for students, professionals and teams.

  3. 3

    DeepL Write

    Fixes grammar and suggests wording

    Grammar and proofreading

    Free plan

    Corrects spelling, grammar and punctuation and suggests word and sentence alternatives, with tone selection for an audience. A free plan includes 50,000 characters per user per month.

  4. 4

    Ginger

    Grammar and proofreading

    Grammar and proofreadingDesktopBrowser extensionMobile

    Ginger is an AI writing assistant that corrects grammar, spelling and style and suggests rephrasing, for business customers and educators and students.

  5. 5

    Outwrite

    Grammar and proofreading

    Grammar and proofreadingWeb appBrowser extension

    Outwrite is an AI writing assistant that checks spelling, grammar, style and structure in web apps and browsers, for students, professionals, casual writers and teams.

  6. 6

    Paperpalalso does this

    Essay and academic writing

    Essay and academic writingWeb appPlugin or MCPBrowser extension

    Free trial

    Paperpal is an AI academic writing tool for researchers and students, covering grammar, plagiarism checks, paraphrasing, citations and submission checks.

  7. 7

    Wordtunealso does this

    Rewrites and proofreads text

    Rewriting and paraphrasingBrowser extensionMobile

    Free plan

    Mainly a rewriting and paraphrasing tool that also proofreads for spelling, grammar and phrasing. It runs as a browser extension and on mobile, with a free Basic plan of 10 rewrites per day.

  8. 8

    ProWritingAidalso does this

    Story and creative writing

    Story and creative writingPlugin or MCP

    Free plan

    ProWritingAid is a writing toolkit for storytellers and book writers, offering manuscript feedback, grammar checks and a free plan with daily limits.

  9. 9

    Rytralso does this

    Generates original content

    CopywritingBrowser extension

    Free plan

    Rytr is an AI writing assistant for copywriters, marketers, entrepreneurs and freelancers, with a free plan of 10k characters per month.

  10. 10

    Enhancvalso does this

    Resumes and cover letters

    Resumes and cover letters

    Free trial

    Enhancv is an AI resume builder with ATS checks, one-click job tailoring, and an application tracker, aimed at job seekers and experienced professionals.

  11. 11

    Writefullalso does this

    Rewriting and paraphrasing

    Rewriting and paraphrasingPlugin or MCP

    Writefull is an AI writing and proofreading tool for academic writing, offering language checks, paraphrasing and a Word add-in for academics, researchers, students and institutions.

  12. 12

    Saplingalso does this

    Copywriting

    CopywritingAPIBrowser extensionPlugin or MCP

    Free plan

    Sapling: an AI writing copilot and API offering grammar checks, autocomplete and AI detection, for developers and businesses.

  13. 13

    Trinkaalso does this

    Grading and feedback

    Grading and feedbackWeb appBrowser extensionDesktop

    Free plan

    Trinka is an AI writing assistant for grammar, proofreading, paraphrasing, and plagiarism or AI detection in academic and technical writing, for students, researchers, and professionals.

List updated 16 Oct 2026