Offline audio formant analysis

Vowel Space Audio Extractor

Extract formants from audio files or recordings and map them into a vowel space. Everything runs locally in your browser—no servers, no storage, no user data collection.

Formant plot
F1 F2 æ i u ɔ
Local analysis and vowel space preview.

Explore the app, learn about how it works, and understand our privacy-first approach.