Science Fiction & Speculative · Free digital edition
Twenty Thousand Leagues under the Sea by Jules Verne, Free to Read Online with Listening and Reading Support
By Jules Verne · 1870
Professor Aronnax enters Captain Nemo’s astonishing submarine world and explores wonders and dangers beneath the oceans.
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Read Twenty Thousand Leagues under the Sea online
Published in 1870, Twenty Thousand Leagues under the Sea follows Professor Aronnax as he enters the submarine world commanded by the mysterious Captain Nemo. Verne's novel moves through ocean wonders and genuine danger, opening with a world gripped by reports of a strange and inexplicable phenomenon at sea. This public domain edition is free to read and listen to in the Vocalini Open Library with no account or checkout required. Text-to-speech reads the book aloud with synchronized sentence and word highlighting, and built-in AI tools let you get key points, simplify a passage, or ask a question as you read.
- Read and listen simultaneously with word-by-word highlighting synchronized to text-to-speech playback.
- Use built-in AI to get key points, simplify language, or ask a question about any passage as you read.
- Free and open in the Vocalini Open Library with no account, sign-up, or checkout required.
Source: Project Gutenberg illustrated HTML edition. Not restricted by U.S. copyright law; readers outside the United States should check their local laws.
Accessible reading tools
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Free text-to-speech
Listen to the visible book text at your pace without buying an audiobook or creating an account.
Synchronized highlighting
Sentence and word highlighting move with the voice, helping you follow the page and keep your place.
Built-in AI reading help
Select a passage to get key points, simplify difficult wording, request an explanation, or ask a question.
The reading tools in this edition are designed with certain readers especially in mind. Synchronized word and sentence highlighting supports readers who benefit from tracking text visually while listening. Text-to-speech playback may be helpful for readers with dyslexia, ADHD, or learning disabilities, and for anyone reading in an additional language. The built-in AI can simplify wording or explain a passage on request, which can ease the effort of navigating Verne's nineteenth-century prose. These features are here to support a wider range of reading experiences, though individual results will vary.
From the opening pages
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“The year 1866 was signalised by a remarkable incident, a mysterious and inexplicable phenomenon.”
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