Master your pronunciation
with AI

Get instant, detailed feedback on your pronunciation. Our AI analyzes your speech and helps you improve with precise, actionable insights.

Integrate
What is Spelly

Pronunciation Engine for Language Learners

Your
Audio Recording

Your Audio Recording

Detected Sounds

Obtain Insight Scores

Obtain Insight Scores

Understand how to Improve

Understand how to Improve
How it works

Practice what you need

Hyper-personalized practice for any sentence or word. See articulation visually, explore mouth + tongue movement, and train the exact sounds you want, across multiple languages.

Learn the correct sounds instantly

Tap through phones, hear clean native samples, and compare against a synthetic reference voice made for your exact sentence or word. You always know what to aim for next.

Deep speech analysis

Not just a score. Spelly breaks your speech down to each detected sound with precise timing, so you can inspect what happened and why, at phone-detail level.

An intuitive learning loop

Find exactly where you miss, get a concrete remedy, then try again immediately. Each attempt is faster, more focused, and reinforces the right movement until the sound sticks.

Your personal sound fingerprint

Spelly builds a phone-level profile from every session you practice. See which sounds you consistently nail, which need more work, and exactly how your accuracy on each has shifted.

Demo

Discover Spelly in Action

Watch how Spelly turns your speech into clear scores, word-by-word guidance, and practice you can feel working.

Video Thumbnail
Browser extension

Spelly on every website you need

Highlight any sentence on any website, right-click, and practise your pronunciation on the spot. Carry Spelly with you like a personal coach.

Highlight text → Analyse with Spelly
Auto-detects the language of the page
Works as popup or side panel
Guests get 3 free attempts; sign in for more
Syncs with your spelly.online account
ChromeAdd to Chrome

Free to install · Chrome

Common questions

The ones we get asked most.

ELSA gives you a score on their content. Duolingo rewards you for completing their curriculum. Spelly analyzes whatever you need to say — your own sentences, real material from your life — and tells you exactly which sounds you're getting wrong and why. Your pronunciation coach travels with you.

Hard no. A teacher designs your learning journey and keeps you accountable. Spelly does something a teacher physically can't: give you detailed phoneme-level feedback on every single attempt, instantly, any time you practice. Most learners get a few minutes of pronunciation feedback per week from a teacher. With Spelly, every recording gets analyzed. The teacher decides where you're going. Spelly tells you exactly how you're sounding, every step of the way.

Absolutely! And it's actually one of the best fits. We offer a white-label platform, an API, and an embeddable widget for institutions. We're more than happy to scope a short call to find the right setup for your use case.