An EPUB reader that reads aloud.

You want an EPUB reader with text to speech — an app that opens the files you already own and reads them aloud, with no internet, while you drive, cook or fall asleep. The short answer: import the EPUB (or PDF, MOBI, TXT, DOCX) into a reader whose voices run on the phone, tap Listen, and set a sleep timer. No streaming, no per-minute cost, no signal needed once the voice is on your device.

The longer answer is that most ebook apps treat read-aloud as an afterthought — a robotic system voice, no highlighting, playback that dies the moment the screen locks. Below: what actually matters in an EPUB TTS app, how to set it up step by step in Arc Reader, and the honest limits — PDFs and DRM-locked store books, mainly.

Why you have a folder full of EPUBs

Nobody plans to own four hundred ebook files. It just happens:

• Light novel volumes. Official digital releases sold DRM-free, or volumes you bought on a store that lets you download the file. A long series is twenty-plus EPUBs on its own.
• Fan-translation EPUBs. Translator groups often package finished arcs or whole volumes as EPUB for offline reading.
• Project Gutenberg classics. Pride and Prejudice, Moby-Dick, The Count of Monte Cristo — free, public domain, and downloadable as EPUB or plain text.
• Calibre exports. Years of a library managed on a laptop, converted and exported in bulk.
• Everything else. A PDF from a course, a DOCX draft from a friend, a TXT file of a serial someone saved.

The files are fine. The problem is time. A light novel volume runs to several hours of reading; listening turns the commute, the gym and the dishes into reading time — if the app does it well.

What to look for in an EPUB reader with text to speech

Six things separate an app you'll keep from one you'll delete after a chapter:

1. Format coverage. EPUB at minimum. Realistically you also want PDF, MOBI, TXT and DOCX, so one app handles the whole folder instead of three.
2. Pictures kept. Light novels have colour inserts and illustrations between chapters. A reader that strips images to get at the text throws away part of the book.
3. A voice that works offline. Cloud voices sound good until you're on a plane or in a tunnel — and many charge by the character. A voice that runs on the device is the one that works everywhere and costs nothing per hour.
4. It keeps your place. Stop mid-chapter on the train, resume in bed. The voice should start where you left off, not at the top of the chapter.
5. Sleep timer and lock-screen controls. Listening is mostly done with the screen off. Pause, skip and a timer have to live on the lock screen.
6. Folder linking. Importing four hundred files one at a time is a chore. Linking a folder means the app reads from where your books already are.

Nice-to-haves: word highlighting so you can glance and follow, speed control, and a way to fix how the voice says names — which matters more than you'd think for light novels and translated fiction.

How to read an EPUB aloud offline in Arc Reader

We make Arc Reader, so this is the setup we know cold. It's free on iOS and Android; no account needed.

1. Install Arc Reader from the App Store or Google Play, and open it as a guest.
2. Import your books. Pick a single file — EPUB, PDF, MOBI, TXT or DOCX — or link a folder so the whole collection comes in at once. Books are read on the device, pictures kept. More on the library.
3. Open a book. It reads like any other book on your shelf: themes, fonts, page curl or scroll.
4. Tap Listen. The chapter is read by a natural voice that runs on your phone. Every spoken word lights up as it's read.
5. Pick a voice. Arc Reader has 140 on-device voices across 31 languages — download one once and it works with no connection from then on. The voices already built into your phone work too.
6. Set it and lock the phone. Choose a speed, set the sleep timer, and turn the screen off. Playback carries on from the lock screen and rolls into the next chapter by itself. More on listening.

Small things that make long listens better

• Tap a paragraph to jump there. Skipped ahead with your eyes? Tap the paragraph and the voice moves to it.
• Pronunciation rules. Fix a character's name once and it's said that way across the whole book. For light novels — honorifics, place names, skill names — this is the difference between immersive and grating.
• Ambient sound. Rain, a fire or soft piano under the voice, if you like that sort of thing.

Can an app read PDFs aloud as well as EPUBs?

Yes — with a caveat worth stating plainly. An EPUB or TXT file is text that knows it's text: paragraphs, headings and chapter breaks are marked up, so the voice reads in clean, natural runs. A PDF is a page layout. Text is placed at positions on a page, and the reader has to work out the order.

For a simple PDF — one column, a novel or a report exported from a word processor — that works well. For complex layouts, it reads less cleanly: two-column papers, footnotes in the middle of a page, running headers and page numbers, sidebars and tables. You may hear a header repeated every page or a footnote read mid-sentence.

Two practical rules:

• If an EPUB of the same book exists, use the EPUB. It will always read aloud better than the PDF.
• Scanned PDFs are images, not text. If you can't select words in the PDF on a computer, there's no text for a voice to read. Arc Reader doesn't run OCR on scans.

Can you read Kindle or Apple Books purchases aloud?

Not in Arc Reader, and not in any third-party app that plays by the rules. Books bought on Kindle or Apple Books are protected with DRM — encrypted so they only open in that store's own app. Arc Reader imports DRM-free files only.

That's less limiting than it sounds. Plenty of what people actually listen to is DRM-free: Project Gutenberg and other public-domain books, light novel volumes from stores that sell without DRM, fan-translation EPUBs, your own documents and Calibre exports of DRM-free files. For DRM-locked purchases, the store's own app and its built-in read-aloud are the route.

Free classics, without hunting for files

If your folder is thin, you don't need one. Arc Reader has a library of thousands of free public-domain classics inside the app — one tap to add a book, and it reads aloud exactly like an imported EPUB. The old, long, public-domain books are perfect for listening — and they cost nothing.

Going the other way: web novels saved as EPUB

Arc Reader is built first for web novels — paste a novel's page link and every chapter downloads to the phone. How offline downloads work.

The reverse of this post is also possible: anything you downloaded can be saved as EPUB and taken out of the app — translation included, if you translated it with your own AI key. Saving as EPUB is a Pro feature. It's the easy way to keep a finished web novel as a file next to the rest of your ebooks.

And if what you really want is a web novel as an audiobook, that's its own guide: turning a web novel into an audiobook. For how Arc Reader's voices compare to other read-aloud apps, see the best novel TTS apps.

FAQ

Can I import Kindle or Apple Books purchases?

No. Store-bought Kindle and Apple Books titles are DRM-protected and only open in those stores' apps. Arc Reader imports DRM-free files — EPUB, PDF, MOBI, TXT and DOCX — such as public-domain books, DRM-free light novel volumes and your own documents.

Does read-aloud work offline?

Yes. Arc Reader's voices run on the phone itself once they're downloaded, so listening needs no connection and uses no data. Your phone's built-in voices work too, and playback carries on from the lock screen.

Which file formats can Arc Reader read aloud?

EPUB, PDF, MOBI, TXT and DOCX. EPUB and TXT read aloud most cleanly; PDFs with complex layouts — columns, footnotes, headers — read less cleanly, and scanned PDFs with no selectable text can't be read at all.

Is it free?

Yes. Importing, reading and listening are free, with offline voices and your phone's own voices. The free version shows a few ads while you read; Pro removes them and unlocks every neural voice.

Can I fix how the voice pronounces character names?

Yes. Add a pronunciation rule for a name once and the voice says it that way across the whole book — useful for light novels and translated fiction full of unusual names.