Korean pronunciation trainer. TonePerfect AI scores every jamo: plain, tense, aspirated, ㅓ/ㅗ, ㅡ/ㅜ. Right-click text to practice.
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1.0.0
updated 8 Oct 2026
About Korean AI Pronunciation Trainer
🇰🇷 Korean AI Pronunciation Trainer — by TonePerfect.app
Sound natural in Korean — even before you can read Hangul fluently. Select any Korean text on any web page, right-click, and the trainer opens it with romanization, then scores every syllable and every jamo you say.
No retyping, no copy-pasting: highlight, right-click, speak.
▶ WHY PRACTISE IN YOUR BROWSER
Korean learners read all day — subtitles, lyrics, news and social media. Every line you read can become speaking practice. Most apps only say "try again". This tool shows what went wrong, sound by sound:
✓ AI pronunciation assessment with an overall score from 0 to 100
✓ Romanization added automatically (Revised Romanization — the one on Korean street signs)
✓ A score for every syllable in the sentence
✓ A score for every jamo — consonant and vowel
✓ The weakest sound named for you, so you know what to practise next
✓ The reference pronunciation one tap away
🚀 HOW IT WORKS (3 STEPS)
1. Pin the extension to your toolbar.
2. Highlight any Korean text — a word, a phrase or a whole sentence.
3. Right-click and choose "Practice pronunciation on TonePerfect".
The text opens on toneperfect.app with romanization, ready to record. Read it aloud, get instant feedback, repeat. That is the whole practice loop.
📌 WHAT IT DOES
➤ Right-click selected Korean text on any website and practise it in one click.
➤ Automatic romanization, so beginners can practise any line they find.
➤ Popup with quick drills for the contrasts learners struggle with most: plain, tense and aspirated consonants, ㅓ vs ㅗ, ㅡ vs ㅜ.
➤ A text box in the popup: type or paste any Korean and practise it.
➤ Per-syllable and per-jamo scores, so your accent becomes a short list of sounds to fix.
🎯 THE SOUNDS LEARNERS STRUGGLE WITH — AND THE AI CHECKS
▸ Plain vs tense vs aspirated consonants — 달 / 딸 / 탈, 불 / 뿔 / 풀, 자 / 짜 / 차
▸ ㅓ vs ㅗ — 거 vs 고
▸ ㅡ vs ㅜ — 그 vs 구
▸ ㄹ as a flap and as an l, at the start, middle and end of words
▸ Final consonants (받침) and the sound changes around them
▸ ㅐ vs ㅔ, and the diphthongs ㅢ, ㅚ, ㅟ
Every drill leaves you with measurable feedback, not vibes.
👥 WHO IT IS FOR
For Korean learners at any level, from your first week of Hangul to advanced, and for teachers who want a quick, objective pronunciation check. It works on any web page where you can select Korean text.
🧩 PART OF THE TONEPERFECT FAMILY
The Korean AI Pronunciation Trainer is a companion to TonePerfect, the AI pronunciation coach used by 50,000+ learners in eight languages:
➤ Web — https://toneperfect.app
➤ Korean practice page — https://toneperfect.app/korean/practice
➤ iOS — https://apps.apple.com/app/toneperfect/id6757938528
➤ Android — https://play.google.com/store/apps/details?id=com.toneperfect.app
Use the extension for quick practice on anything you read, and the app for daily guided sessions with thousands of Korean words and sentences.
🔒 PRIVACY
📍 The extension does not collect, store or transmit personal data.
📍 It requests no host permissions and never reads or changes the pages you visit.
📍 Its only permission is contextMenus, used to add the practice menu item.
📍 Selected text is sent to toneperfect.app only when you click the menu item or the Practice button — exactly as if you had typed it yourself.
Recording happens on toneperfect.app, in your browser, only when you tap the microphone, under its privacy policy: https://toneperfect.app/privacy
❓ FREQUENTLY ASKED QUESTIONS
❓ What is the Korean AI Pronunciation Trainer?
💡 A browser tool that gives AI feedback on how you speak — per syllable and per jamo — for any Korean text you select on the web.
❓ I'm still slow at reading Hangul. Can I use it?
💡 Yes. Romanization is added automatically on the practice page.
❓ How do I check my pronunciation?
💡 Highlight Korean text, right-click, choose "Practice pronunciation on TonePerfect", read it aloud and get an instant score.
❓ Is it free?
💡 Yes — free daily practice with no account needed. The TonePerfect app offers unlimited practice.
❓ Does it work on any website?
💡 Yes, on any page where you can select Korean text.
🎉 Start improving your Korean pronunciation today: pin the extension, select a sentence, and let TonePerfect's AI coach you one sound at a time. 화이팅!