Writing & Editing
Best AI Grammar Checker Tools in 2026: Free & Paid Picks
AI Grammar Checker is for cleaning up text before it is published, submitted, or sent. Use AI Grammar Checker to compare tools that improve correctness while preserving the writer's intended meaning.
74Total AI Grammar Checker Tools3Most Relevant AI Grammar Checker Tools18Free AI Grammar Checker ToolsAI Grammar Checker Tools updated Jun 18, 2026
Top tools
Top 10 AI Grammar Checker Tools
Explore top AI Grammar Checker Tools ranked by category fit, free access, AI-powered features, traffic, and pricing context.
Free plan
Gr
Grammarly
AI writing assistant for error-free, clear, and impactful communication.
Real-time spelling, punctuation, and grammar checkerTone detector and full-sentence rewrite suggestionsPlagiarism checker and auto-citation generatorIntegrated AI detector to analyze writing text+2
Free plan
Qu
Quillbot Paraphraser
AI-powered writing platform featuring paraphrasing, grammar checking, and text optimization tools.
AI Paraphrasing tool with multiple writing modesAdvanced Grammar Checker, Spell Checker, and Essay CheckerPlagiarism Checker supporting over 100 languagesAI Detector to analyze and identify AI-generated content+3
Paid
Ze
ZeroGPT
An online AI detection tool to verify content originality and identify machine-generated text.
AI text detection with sentence-level highlighting and percentage indicatorsDeepAnalyse™ multi-stage methodology to evaluate content originSupport for multiple languagesBatch file uploading and automated dashboard checks+3
Paid
Gp
Gptzero me
Advanced AI detector and checker for identifying machine-generated text.
Multi-model AI detection (ChatGPT, GPT-4, Gemini, Claude, LLaMa)Sentence-level AI highlighting and vocabulary analysisPlagiarism checker and source verificationWriting reports with video replay for authorship verification+2
Free plans
Best Free AI Grammar Checker Tools
Start with free AI grammar checker tools that cover practical website workflows, core features, and AI-powered output quality.
| Tool | Plan status | Pricing | Traffic | Feature preview | Website |
|---|---|---|---|---|---|
| Grammarly | Free option | Free, Pro from $12/member/mo | 54M/mo | Real-time spelling, punctuation, and grammar checker, Tone detector and full-sentence rewrite suggestions | Visit |
| Quillbot Paraphraser | Free option | Free, Premium from $8.33/mo | 45M/mo | AI Paraphrasing tool with multiple writing modes, Advanced Grammar Checker, Spell Checker, and Essay Checker | Visit |
| Sider | Free option | Free, Basic from $8.30/mo | 3.5M/mo | All-in-one AI chatbot integrating GPT-4.1, Claude 3.5, and Gemini 2.5, Group AI Chat to compare answers from multiple bots simultaneously | Visit |
| Decopy AI | Free option | Free | 1.8M/mo | AI Content Detector with 99% accuracy across models like ChatGPT, GPT-4, and Claude, AI Humanizer to transform robotic AI text into smooth, natural human expression | Visit |
| ProWritingAid | Free option | Free, Premium from $10/mo | 1.5M/mo | In-depth grammar, spelling, and punctuation checker, Over 25 specialized writing analysis reports for pacing, structure, and sensory details | Visit |
| Trancy | Free option | Free, Premium from $2.33/mo | 737K/mo | YouTube and Netflix AI bilingual subtitles with dual viewing modes (theater and reading), Immersive webpage AI text selection translation supporting multi-language full-text contrast | Visit |
| Type AI | Free option | Free, Pro from $12/mo | 429K/mo | Powered by leading AI models including OpenAI's GPT-4o and Anthropic's Claude 3.7 Sonnet, Inline AI word generator that creates sentences, lists, and paragraphs directly at your cursor via a '/' command | Visit |
| Yoodli AI Speech Coach | Free option | Free, Pro from $8/mo | 324K/mo | Private, real-time speech coaching and in-the-moment nudges during live calls, Comprehensive analytics on visual, verbal, and vocal delivery (filler words, pacing, and monologues) | Visit |
| Kroolo | Free option | Free Trial available, dynamic tiers on upgrade | 124K/mo | AI WorkOS with 40+ custom AI agents for automated tracking, hiring, and operations, Instant AI project board creation via simple text prompts or voice commands | Visit |
| Think in Italian AI Language Tutor | Free option | Free, Starter from $9.80/mo | 67K/mo | 250 speech-focused audio lessons designed to teach grammar and sentence patterns intuitively, Over 1,200 bilingual readings with audio and dual-language transcripts for contextual learning | Visit |
Traffic
Most visited AI Grammar Checker Tools
Use traffic, free-plan status, and starting price to compare the most visited tools in this category.
| Tool | Traffic | Free plan | Starting price | Website |
|---|---|---|---|---|
| Grammarly | 54M/mo | Yes | Free, Pro from $12/member/mo | Visit |
| Quillbot Paraphraser | 45M/mo | Yes | Free, Premium from $8.33/mo | Visit |
| ZeroGPT | 26M/mo | No | Free, Pro from $7.99/mo | Visit |
| Gptzero me | 17M/mo | No | Free, Essential from $8.33/mo | Visit |
| LanguageTool | 7.6M/mo | No | Free, Premium from SGD 4.99/mo | Visit |
| Scribbr | 7.3M/mo | No | Free basic tools, premium services vary by document length and deadline | Visit |
| Sider | 3.5M/mo | Yes | Free, Basic from $8.30/mo | Visit |
| Originality | 2.4M/mo | No | Pay as you go from $30, Pro from $12.95/mo | Visit |
Browse all tools
Top AI Grammar Checker Tools Comparison
Browse all AI Grammar Checker Tools in this category with search, free-plan filtering, sorting, website signals, pricing, and AI-powered feature context.
| Tool | Free | Pricing | Traffic | Features | Website |
|---|---|---|---|---|---|
| NoPlagio | Yes | Free, Premium AI from €9.95/mo, packages from €1.50 | 50K/mo | Multilingual support detecting similarity across 129 different languages, Comparison against a large academic database containing over 80 million scientific articles | Visit |
| outwrite.com | No | Free, Pro from $9.95/mo | 29K/mo | Advanced grammar, spelling, and punctuation checks, Sentence rewriting and paraphrasing tool | Visit |
| CoWriter AI | No | Free, Pro from $11.99/mo | 20K/mo | AI-powered thought autocompletion and sentence suggestions, Plagiarism checker and AI detection proofing | Visit |
| Talers | No | Free, Pro from €12/mo | 17K/mo | Multi-device synchronization across desktop, tablet, and mobile, Full offline functionality with local and cloud backup | Visit |
| WriteVoice | Yes | Free, Unlimited from €14.99/mo | 22K/mo | Dictation speeds of up to 170 words per minute, 97%+ voice recognition accuracy that improves over time | Visit |
| RewriteBar | No | Free Trial, plans start from $5/mo or a $29 one-time payment | 15K/mo | Grammar and Spelling Correction: Instantly fixes mistakes directly within any active text field., Tone and Length Adjustment: Easily switches text tones between professional, casual, and social media styles, or summarizes and expands paragraphs. | Visit |
| ParagraphAI | No | Free, Pro from $12.49/mo | 17K/mo | One-tap grammar correction and real-time text editing filters, Instant email and message drafting with personalized reply generation | Visit |
| Shy Editor | No | Free, Pro from $10/mo | 16K/mo | AI assistant for breaking writer's block and refining text style, Intelligent grammar and tone consistency checker | Visit |
| Friday: AI E-mail Writer | No | Free Trial available | 46K/mo | Instant AI email generation from a few keywords, Real-time grammar check and text optimization | Visit |
| WordAI | No | Starts at $9/mo | 37K/mo | Complete sentence restructuring for high uniqueness and readability, LSI keyword enrichment to maximize SEO impact | Visit |
| Ai Keeda | No | Bronze from $9.99/mo, Standard from $19.99/mo | 22K/mo | AI Text Generator with 30+ language capabilities and custom templates, AI Image Generator powered by Dall-E and Stable Diffusion | Visit |
| AI Email Assistant AImReply | No | Free, Premium available | 18K/mo | AI-powered email and reply generation based on context, Multi-language support for 17 languages including English, Arabic, and Hindi | Visit |
| Rewriter Tools | No | Free Trial, contact for customized pricing | 14K/mo | AI Article Rewriter and advanced text paraphrasing, Creative Article Spinner for altering composition and tone | Visit |
| LM-Kit.NET | No | Free, Professional plans from $1,000/yr | 14K/mo | On-device local inference designed to reduce latency, minimize resource usage, and keep data secure, Comprehensive toolkit for building, customizing, and orchestrating .NET AI agents | Visit |
Showing 61-74 of 74 AI Grammar Checker Tools matchesBrowse more tools in this category.