About ImmersivePage

ImmersivePage is a multi-voice document reader: import a book, manuscript, article, or pasted text, and listen with a narrator plus distinct character voices, scene-aware ambience and music, theatrical stage pans, and optional bilingual read-along.

Brought to you by

An Oregon limited liability company^*

What this app does

Read anything aloud — EPUB, DOCX, PDF (digital text), TXT, Markdown, pasted text, web URLs.
Cast-driven fiction — narrator plus a distinct voice per character, with smart cast detection (recommended) or an optional experimental AI overlay for dialogue attribution.
Directed listening — Voice only · Light · Cinema presets bundle ambience, music, one-shot SFX, stingers, and stereo stage pans.
Multi-engine voices — Apple system voices, Windows SAPI, Microsoft Edge Neural, Piper (offline), Kokoro (offline), Azure Neural, ElevenLabs. Connect external provider accounts for paid voices.
Illustrated mode — chapter art and inline figures extracted from your source document, rendered behind / above the text.
Bilingual read-along — side-by-side translation line with auto-slowed dialogue for language learners.

See the full feature list in docs/Feature List.md for everything ImmersivePage supports today.

Build & version

Product: ImmersivePage · MultiVoice Reader
Edition: Wizard (web)
Build: development
Server environment: —

The version field is sourced from the server's /api/config endpoint when available. In local development it reads "development".

Acknowledgments

ImmersivePage is built on the work of many open-source projects. We are especially indebted to:

Piper (MIT) and Kokoro (Apache 2.0) for offline neural voices that make the free tier possible.
python-docx, EbookLib, and PyMuPDF for document import, including image extraction from DOCX, EPUB, and PDF.
edge-tts, Microsoft Azure Speech, and ElevenLabs for neural voice synthesis paths.
OpenAI and OpenAI-compatible providers (including local model runners like Ollama and LM Studio) for the optional AI cast director.
Apple AVSpeechSynthesizer on iOS and macOS, and Windows SAPI on Windows, for native on-device speech.

See Open source licenses for the full third-party notices and license texts.

Brand & positioning

ImmersivePage is the product. Nightstand Labs is the company that publishes it. If you ever see a Nightstand Labs mark on an author's "Directed Edition," it functions like a publisher's imprint — a quality and provenance signal at the bottom of the credits, not the headline.

Logo: Nightstand Labs company mark (publisher imprint; same lockup in dark and light themes). ImmersivePage product logo: spotlight on open book. Subtitle: MultiVoice Reader.

Legal & info

Contact

For support, partnership inquiries, press, or general questions, reach us at hello@nightstandlabs.com.

^* Nightstand Labs LLC is in the process of formation. Once registered, the entity's Oregon Secretary of State registry number and registered agent address will appear here and on the Privacy Policy and Terms of Service pages.