Read Aloud (Text-to-Speech)
Turn any FlipBook into an audiobook. Read Aloud uses your browser's built-in voices for free, or premium cloud voices from Google, Azure, Amazon, ElevenLabs, or OpenAI when you want broadcast quality.
Why Read Aloud
Some readers prefer to listen. Some can't read on a small screen, or in a car, or at all. Read Aloud meets them where they are.
Browser voices, free
Every modern browser ships with TTS. Read Aloud uses it without an API key.
Five cloud providers
Google Cloud, Azure Speech, Amazon Polly, ElevenLabs, OpenAI.
Word-level highlighting
The current word lights up while it's being spoken.
Switch mid-playback
Change voice or provider on the fly without restarting the page.
Pre-generated audio
Generate MP3s once, serve them forever, no per-play API cost.
Auto text extraction
Reads PDF text directly, no transcript needed. Falls back to pdftotext for encrypted files.
How it works
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01
Pick a provider
Browser TTS is on by default. Add cloud API keys in Settings to unlock premium voices.
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02
Generate or stream
Pre-generate MP3s for every page, or stream live with browser voices. Both work side-by-side.
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03
Reader hits play
The mic button in the toolbar starts playback. Word highlighting follows the audio.
Supported voice providers
SpeechSynthesis API, no key needed.
Neural2 and WaveNet voices.
Microsoft Neural voices.
AWS Polly Standard and Neural.
High-realism, expressive voices.
OpenAI tts-1 and tts-1-hd.
Add a voice to your PDFs
Read Aloud is included with TNC FlipBook 3D Pro.
- 7-day money-back guarantee
- Annual & lifetime plans
- Updates & support included