Spelling Checker
Catch every spelling mistake instantly with AI
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Does your word processor keep underlining a name that is spelled correctly? Have you sent a document with "form" where "from" belonged, because both are real words? Spelling Checker catches the typos a dictionary check misses, and follows whichever English standard you actually write in.
Short answer: Spelling Checker is a free AI tool on EizTools that finds spelling errors, confusable word pairs and capitalisation mistakes in your text, working to US, UK or another English standard you choose.
What is Spelling Checker?
It is a proofreading tool for the spelling layer alone. It handles ordinary typos, but the value sits in the harder cases: homophones that pass a dictionary check, proper nouns a generic checker flags wrongly, technical terms it does not know, and words that are correct in one variety of English and wrong in another.
US, UK And The Words In Between
The Spelling Standard dropdown offers US, UK, Canadian, Australian, International and Indian English. This matters more than most writers assume. A thesis marked in the UK and a paper submitted to a US journal need different spellings of the same words, and mixing them within one document is the tell that gets noticed.
Dictionary Mode narrows the vocabulary further, with General, Academic, Business, Technical, Medical, Legal, Creative and a Custom Word List option for names and terms specific to your work.
How Does Spelling Checker Work?
Drop your document into the prompt box, choose an engine from the provider grouped list, then open the accordion and fix the standard and the scope before anything else. Generate, and the result appears in an output card tagged with the engine that ran the check.
Paste the clean text back into your file, or take it as a Word, TXT or HTML export. Session history holds each run, so a clean version and a list of corrections can sit side by side while you work through a long document.
Advanced Options Guide
| Option | What it controls | Where to start |
|---|---|---|
| Spelling Standard | Which English is correct | The one your reader uses, set before anything else |
| Spelling Scope | Which error types are hunted | All Spelling Issues, or Homophones/Confusables if that is your pattern |
| Output Style | What comes back | List of Corrections for review, Clean Corrected Text when finished |
| Detection Sensitivity | How aggressive the check is, 1 to 10 | Around 7, lower if it keeps flagging your terminology |
Four toggles complete the panel: Fix Spelling, Ignore Proper Nouns, Preserve Formatting and Flag Uncertain Words. Ignore Proper Nouns saves a lot of noise in academic and technical documents, and Flag Uncertain Words is the one that surfaces the judgement calls instead of silently deciding for you.
Give it your vocabulary Paste product names, participant codes and technical terms into the Additional Spelling Notes box. The checker then leaves them alone instead of correcting them into something plausible.
What works well
- Catches real word errors that dictionary checkers accept
- Enforces one English standard consistently across a document
- Free to use with no account and no daily limit
What to watch for
- Unusual names still need checking, even with the toggle on
- High sensitivity can flag correct specialist terms
- It checks spelling, so grammar and clarity need a different pass
EizTools is free to use with no sign up, and each tool is a dedicated workspace with its own settings and a model selector on the page. When a document needs rewriting rather than correcting, the Content Rewriter does that job, and the writing tools category holds the other editing tools.
Frequently Asked Questions
Does it catch words that are spelled correctly but wrong?
That is the main reason to use it. Set Spelling Scope to Homophones/Confusables and Spelling Checker looks for pairs like their and there, which pass every dictionary based check.
Can it keep my technical terms?
Yes. Choose the Technical or Medical dictionary mode, list your terms in the notes box, and switch Ignore Proper Nouns on so names and product labels are left exactly as written.
Will it change my formatting?
Not with Preserve Formatting switched on. Headings, line breaks and lists come back as you pasted them, which matters when you are checking a structured document rather than plain prose.
Is there a length limit?
Work in sections for the best results. A few pages at a time gets more careful attention than an entire manuscript, and the session history keeps each checked section available.
Spelling errors are small, and they are the ones readers remember. A check that understands which English you write in, and which words are yours to keep, saves the awkward correction after publication.
Paste your document into Spelling Checker, set the Spelling Standard first, and add your own terminology before you generate.
Sabir Bepari
Founder of EizTools and a passionate AI enthusiast dedicated to building practical, user-friendly AI tools that simplify everyday tasks.
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