Is this Portuguese text-to-speech really free?

Yes. The page is public, no signup is required, and there are no credit limits. The voice model runs entirely in your browser. For studio-grade voices and longer narration, see the paid Subformer Voice Synthesis service.

How does the Portuguese TTS work in the browser?

It uses Piper, an open-source neural TTS engine, compiled to WebAssembly and run via ONNX Runtime Web. The voice model (~60 MB) is downloaded on first use and cached in your browser's Origin Private File System. Subsequent visits skip the download entirely.

Is my text uploaded to a server?

No. Synthesis runs locally in your browser. The only network calls are to download the Piper voice model and the ONNX runtime — both are static assets. Your text and the generated audio never leave your device.

Does it work offline?

Once the voice model is cached, yes. The first visit needs network access to download the model; after that the page can synthesize speech offline.

What's the difference between this free Portuguese TTS and the paid Voice Synthesis service?

The free in-browser TTS uses a medium-quality Piper voice — fine for narration drafts, accessibility, and quick previews, but it sounds noticeably synthetic. The paid Subformer Voice Synthesis service uses studio-grade models (Chatterbox + Gemini TTS), supports voice cloning, and produces broadcast-quality audio. Visit /dashboard/voice-synthesis to try it.

Which browsers are supported?

Any modern browser with WebAssembly: Chrome, Firefox, Safari 15+, Edge, and Chromium-based mobile browsers. The page runs ORT in single-threaded mode so it works in every common browser without requiring cross-origin isolation.

Can I download the audio?

Yes. After synthesis you can play the audio inline or click Download to save it as a 22 kHz mono WAV file. Use any audio editor to convert to MP3 or other formats.

Subformer

Prijavite se

Besplatno · Bez prijave · Radi u vašem pregledniku

Besplatni Portuguese tekst u govor

Português

Upišite ili zalijepite Portuguese tekst i poslušajte ga izgovoren — sve u vašem pregledniku, bez prijave. Model glasa se preuzima jednom (~60 MB) i sprema u lokalnu predmemoriju, tako da su naknadna pokretanja trenutna i rade offline.

Premium — također od Subformer

Glasovi studijske kvalitete

Prirodni Portuguese TTS kvalitete za emitiranje za podcaste, oglase i naraciju.

Kloniranje glasa

Klonirajte bilo koji glas iz kratkog audio uzorka i ponovno ga upotrijebite u različitim projektima.

Prevedi i dubliraj

Prevedi i dubliraj videozapise na više od 30 jezika jednim klikom.

Kako to radi

1. Upišite svoj tekst
Zalijepite ili upišite bilo koji Portuguese tekst — interpunkcija i prijelomi redaka se poštuju.
2. Generiraj
Prvi klik preuzima model glasa od ~60 MB u vaš preglednik. Nakon toga sinteza je trenutačna.
3. Preuzmi ili reproduciraj
Reproducirajte audio izravno ili ga spremite kao WAV datoteku. Audio nikada ne napušta vaš uređaj.

Vaš tekst ostaje na vašem uređaju

Sinteza se potpuno izvodi u vašem pregledniku koristeći WebAssembly. Jedini mrežni zahtjevi su za dohvat Piper modela glasa i ONNX runtimea — oboje su javni, statični resursi. Ne vidimo vaš tekst i ne vidimo generirani zvuk.

Trebate glasove kvalitete za emitiranje?

Subformer Voice Synthesis — studijske kvalitete Portuguese TTS

Besplatni alat u pregledniku iznad izvrstan je za nacrte i pregled, ali Piper glasovi zvuče primjetno sintetički. Plaćena Subformerova Voice Synthesis koristi Chatterbox i Gemini TTS za prirodan zvuk emiterske kvalitete uz mogućnost kloniranja glasa.

Isprobajte Subformer Voice Synthesis

Besplatni Portuguese tekst u govor

Kako to radi

1. Upišite svoj tekst

2. Generiraj

3. Preuzmi ili reproduciraj

Vaš tekst ostaje na vašem uređaju

Subformer Voice Synthesis — studijske kvalitete Portuguese TTS

Često postavljana pitanja

Isprobajte druge besplatne TTS jezike