Free Portuguese Grammar Checker
Write error-free Portuguese with our AI-powered grammar checker. GoTranslate detects grammar mistakes, punctuation errors, and style issues in your Portuguese text — all for free. Type in English and auto-transliterate to Portuguese script, or paste Portuguese text directly.
Check Grammar NowNo signup required. Free to use.
Why Use Our Portuguese Tool?
AI Grammar Detection
Powered by LanguageTool, our checker finds grammar errors in Portuguese text with high accuracy.
Auto-Transliteration
Type in English (Roman script) and auto-convert to Portuguese script as you type.
Real-time Suggestions
Get instant correction suggestions with one-click accept to fix errors quickly.
Free & Unlimited
Check Portuguese grammar for free with generous daily limits. No signup required.
How It Works
Enter your text
Type or paste your text. Use transliteration to type in your language script.
Click "Check Grammar"
Our AI analyzes your text and highlights grammar issues with suggestions.
Accept fixes
Review suggestions and accept corrections with one click.
How to Check Portuguese Grammar Online
Writing correct Portuguese means handling both the Latin script and its grammar rules with care. Portuguese has extensive verb conjugation (over 50 forms per verb), nasal vowels, and significant differences between Brazilian and European Portuguese spelling. Our free Portuguese grammar checker catches these mistakes instantly and explains each correction.
Portuguese is written by roughly 264 million+ speakers across Brazil, Portugal, Mozambique, Angola, and more. Portuguese uses the Latin alphabet with diacritics including the unique tilde (~) on vowels for nasalization, along with acute, grave, and circumflex accents. The checker is tuned for Latin text, so it understands the script's structure — whether you paste Portuguese directly or transliterate it from English.
Whether you're writing an essay, email, social media post, or official document in Portuguese, the tool flags grammar, punctuation, and style issues so you can fix them in one click. Free users can check texts up to 3,000 characters. Did you know? Portuguese is the most spoken language in the Southern Hemisphere. Brazil alone has more Portuguese speakers than all other Portuguese-speaking countries combined.
Common Portuguese Writing Mistakes to Avoid
Latin Script Errors
Portuguese uses the Latin alphabet with diacritics including the unique tilde (~) on vowels for nasalization, along with acute, grave, and circumflex accents. Small slips in the script can change a word's meaning entirely — the checker catches them automatically.
Grammar & Agreement
Portuguese has extensive verb conjugation (over 50 forms per verb), nasal vowels, and significant differences between Brazilian and European Portuguese spelling. Our checker flags these structural errors as you write.
Spelling and Vowel-Mark Errors
Missing or incorrect diacritics and vowel marks are among the most frequent Portuguese mistakes. Even native speakers make these when typing quickly — the spell check catches them.
Redundant Words
Repeating the same idea with different words (like saying "return back") is common in Portuguese writing. Our style checker flags unnecessary redundancies.
About the Portuguese Language
Speakers & Regions
264 million+ speakers
Brazil, Portugal, Mozambique, Angola, and more
Latin Script
Portuguese uses the Latin alphabet with diacritics including the unique tilde (~) on vowels for nasalization, along with acute, grave, and circumflex accents.
Writing Challenges
Portuguese has extensive verb conjugation (over 50 forms per verb), nasal vowels, and significant differences between Brazilian and European Portuguese spelling.
Did You Know?
Portuguese is the most spoken language in the Southern Hemisphere. Brazil alone has more Portuguese speakers than all other Portuguese-speaking countries combined.