Best AI Spell Check Tools

17 toolsRanked by traffic

AI spell check tools find and fix misspelled words in your writing, flagging typos and offering the correct spelling as you type or after you paste text. The focus is narrow and specific: catching spelling mistakes rather than grammar or style. Common options include Grammarly, LanguageTool, and QuillBot, while SwiftKey AI Keyboard corrects spelling live on your phone.

Everyone who types makes spelling slips, and AI spell checkers smarter than the old red-squiggle kind use context to tell their from there or affect from effect. That context awareness is the real upgrade: a classic spell checker only knows whether a word exists, while an AI one knows whether it's the right word for the sentence. For anything more than spelling, you'll want a grammar checker or proofreader, since these tools deliberately stay in their lane.

SwiftKey AI Keyboard
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SwiftKey AI Keyboard
Enhances typing with AI-powered autocorrect and predictions
Grammarly
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Grammarly
Enhances writing with grammar, tone, and style suggestions.
QuillBot
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QuillBot
Enhances writing with AI-powered paraphrasing, grammar checking, and tone analysis.
LanguageTool
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LanguageTool
Checks grammar, spelling, and style across multiple languages
DupliChecker
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DupliChecker
An online tool that helps users identify and handle plagiarism in their text
Paperpal
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Paperpal
Get AI-powered in-depth suggestions to help you polish your academic writing
Wordtune
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Wordtune
Enhances writing with AI-powered paraphrasing, grammar correction, and tone adjustments
Wordvice AI
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Wordvice AI
Enhance the quality and clarity of different types of written content
Sapling
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Sapling
Integrates with CRM messaging platforms to improve response quality and efficiency
Reading Coach
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Reading Coach
A free AI-powered tool that helps learners improve their reading skills
Trinka
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Trinka
An online grammar checker and language correction tool for academic and technical writing
Linguix
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Linguix
Create perfect content in English, Spanish, German, French, Portuguese, and Polish
editGPT
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editGPT
A browser extension that enhances your writing by integrating with ChatGPT
InstaText
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InstaText
An AI writing assistant that enhances your writing by making it more readable and engaging
Flawlessly AI
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Flawlessly AI
Transforms text into polished writing by correcting grammar and spelling instantly

Frequently Asked Questions

What is the best AI spell checker?
The best AI spell checker for most people is Grammarly, which catches misspellings and homophone errors using sentence context. LanguageTool is a strong free option with broad language support, and QuillBot bundles spell check with editing. On mobile, SwiftKey AI Keyboard fixes spelling as you type, which suits heavy phone writers.
How is AI spell check different from a normal spell checker?
AI spell check uses context to decide whether a word is the right one, not just whether it exists. A normal spell checker accepts any real word, so it misses "their" used for "there." An AI checker reads the surrounding sentence and flags the wrong correctly-spelled word, catching errors the old kind sails past.
Are AI spell checkers free?
Most AI spell checkers are free, since spelling is a core feature that tools offer at no cost. Grammarly, LanguageTool, and QuillBot all check spelling on their free tiers, and mobile keyboards include it by default. Paid plans focus on grammar, tone, and style rather than charging for basic spelling.
Does spell check catch grammar mistakes too?
Spell check on its own focuses on spelling, not grammar, though many modern tools bundle both. A pure spell checker flags misspelled words but ignores tense errors, missing words, or awkward structure. If you want grammar and style covered as well, use a grammar checker or proofreader, which includes spelling as part of a wider review.