Quick grammar and formatting checker with auto-fixes.
If this tool isn’t working as expected, please take a screenshot of the error and report the problem here so we can investigate and improve it.
Grammar mistakes undermine credibility in emails, drafts, and posts, but a full editing suite is more than most quick checks need. This tool scans your text in the browser for five pattern-based issues - double spaces, extra spaces before punctuation, sentences starting with a lowercase letter, immediately repeated words - plus a fixed list of about a dozen common typos and unpunctuated contractions like "recieve," "wont," and "teh." There's no external grammar API or AI language model involved, and nothing you type is sent to a server - the check runs entirely in your browser.
That makes it a fast pass for common typing slips, not a substitute for a full grammar and style assistant that checks tense, subject-verb agreement, or sentence structure.
Grammar check searches come from writers, students, and professionals who want a quick proofreading pass before publishing, submitting, or sending important text - not a full editing suite.
Paste or type your text into the editor.
Tool scans for grammar issues and suggestions.
Apply automatic corrections for common mistakes.
Copy the corrected text.
Enter text in the Editor tab; the tool re-scans automatically about a third of a second after you stop typing.
Check the issue count shown below the editor - it tells you how many of the five rule categories found something, without listing each one individually.
Click Auto-Fix All to apply every detected fix at once, or edit the text yourself if you want more control over individual changes.
Switch to the Preview Clean tab to see the current result, then copy it or download it as a .txt file.
Best For
Input
"i recieve the report yesterday. it wont be ready until tommorow. the the team is happy ."Result
"I receive the report yesterday. It won't be ready until tomorrow. The team is happy."Auto-Fix All applied five rules in one click: collapsed the double spaces, removed the space before the final period, capitalized the start of each sentence, removed the repeated word "the the," and corrected two fixed-list typos ("recieve," "tommorow") plus one fixed-list contraction ("wont"). Word choice, sentence structure, and tense are untouched - those fall outside the five categories this tool checks.
Scan for common fixed-list typos and formatting slips before hitting send.
Clean up double spaces and stray spacing before punctuation in one pass.
Catch lowercase sentence starts and repeated words before publishing.
Fix contractions typed without an apostrophe, like "dont" or "cant."
Problem
Solution
This tool checks five mechanical patterns plus a short fixed typo/contraction list - it doesn't analyze sentence structure, tense, subject-verb agreement, word choice, or tone the way a full grammar assistant does.
Problem
Solution
Auto-Fix All applies every detected fix at once; the tool shows a total issue count but doesn't list or let you approve individual corrections before applying them.
Problem
Solution
Spelling correction is limited to a fixed list of about a dozen common typos and contractions (like "recieve" or "dont") - misspellings outside that list aren't flagged.
Problem
Solution
The typo list, contraction list, and capitalization rule are all English-specific, so the tool won't meaningfully check text written in other languages.
Since fixes apply all at once with no individual review step, skim the Preview Clean tab afterward to confirm nothing was changed incorrectly.
For tense, subject-verb agreement, or sentence-level issues, this tool won't help - it only catches the five mechanical patterns and the fixed typo list.
Since only a total count is shown (not per-issue detail), checking shorter sections makes it easier to see what changed after Auto-Fix.
Text isn't saved between visits, so download the result as .txt or copy it if you need to keep it.
Detection is limited to double spaces, spacing before punctuation, lowercase sentence starts, repeated words, and about a dozen fixed typos/contractions - nothing outside this list is flagged.
The tool doesn't check tense, subject-verb agreement, comma splices, sentence structure, word choice, passive voice, or tone.
Detection runs on pattern matching in your browser - there's no external API or language model behind it.
Auto-Fix All applies every detected fix together; there's no way to preview or apply corrections one at a time.
The fixed typo list, contraction list, and capitalization rule are built for English text and won't meaningfully check other languages.
Sentence count is based on counting ./!/? characters, and reading time is a fixed words-divided-by-200 estimate - both are approximations, not linguistic analysis.
Both catch writing issues, but at very different depths.
| This Tool (Grammar Check) | A Full Grammar Assistant (e.g., Grammarly-class tools) | |
|---|---|---|
| Detection method | Pattern matching for 5 issue types + a fixed ~14-item typo/contraction list | Broad grammar, style, and tone analysis, often AI-assisted |
| What it catches | Double spaces, spacing before punctuation, lowercase sentence starts, repeated words, common fixed typos | Tense, subject-verb agreement, sentence structure, word choice, tone, clarity |
| Processing | Entirely in your browser - no external API or account | Typically requires an account and sends text to a server or AI model |
Which should you use?
Use this tool for a fast, private, mechanical cleanup pass before sending or posting; use a full grammar assistant when you need real grammar, style, or tone analysis.
The most common question is what this actually catches, since the name suggests something bigger. It's a mechanical pass - five pattern-based checks plus a short fixed list of common typos and contractions - not a full grammar or style engine that understands sentence structure, tense, or word choice. The FAQ below covers exactly what's detected, what isn't, and how Auto-Fix works.
It scans your text in the browser for five pattern-based issues (double spaces, spacing before punctuation, lowercase sentence starts, repeated words) plus a fixed list of about a dozen common typos and unpunctuated contractions. There's no external grammar API or AI model involved.
No. It doesn't analyze tense, subject-verb agreement, sentence structure, word choice, or tone - it only catches the specific mechanical patterns and fixed typo list described above. Think of it as a quick cleanup pass, not a full grammar assistant.
It applies every detected fix at once, directly to your text - there's no way to review or apply individual corrections one at a time.
No. CoditTools's grammar checker runs entirely in your browser using pattern matching - your text is never sent to any server or external API.
Not meaningfully. The typo list, contraction list, and capitalization rule are all built for English text.
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