OfflineTTS — Free browser-based TTS & STT that runs locally

In plain words

OfflineTTS is a browser-based text-to-speech and speech-to-text tool that operates locally without requiring internet connectivity. It runs directly in the browser, allowing users to convert text to audio and transcribe spoken words into text. The service is free and designed for anyone needing offline voice conversion capabilities, whether for accessibility, content creation, or language learning.

written from the facts on this page · September 2026

From the sources

Convert text to speech online directly in your browser with voices from Kokoro, Piper, Kitten, Supertonic, and Pocket TTS. This offline text to speech workflow needs no signup or OfflineTTS per-character bill. English voices can work offline after download when cached models and the selected engine support local generation. Paste your text, choose an English voice, and generate private speech without leaving this page. Your text and generated audio stay in your browser. For longer scripts, more languages, synchronized subtitles, and generation history, use the full workspace. This morning I opened the window before making coffee. The street was still quiet, and a delivery bike passed slowly…from offlinetts.com

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