Ebook reader

An ebook reader that gets out of the way.

DeltaScroll is a calm reading app for the books you own and the classics you have always meant to read. It opens EPUB, PDF and DOCX files, works offline, and keeps your library on your device.

Get DeltaScroll Try it in your browser

Android, Windows and web
No account
No ads

The DeltaScroll library with Continue reading and a shelf of classics

How it works

Three steps, then just read.

Add your books
Import EPUB, PDF or DOCX files, or download a classic from inside the app.
Make the page yours
Choose a theme, a font, a size and a spacing that feel right for your eyes.
Read, or listen
Turn pages, scroll, or let natural voices read the chapter to you.

What you get

Ebook reader, done properly.

Every format you own

EPUB opens as it is. PDF and DOCX become reflowing books with chapters, on your device.

Comfortable reading

Five reading themes, six fonts, adjustable size and line spacing, and page curls or smooth scrolling.

Notes that stay put

Highlights in six colours, notes, bookmarks, a dictionary and search inside every book.

A library you can find things in

Shelves, favourites, a Finished tag, and sorting by title, author or date added.

Read aloud

Listen with natural voices while each sentence lights up, at the speed you choose.

Backups you control

One file or Google Drive carries books, positions, shelves, highlights and notes.

Ebook reader

Why readers choose DeltaScroll

Most reading apps want an account, a subscription or your attention. DeltaScroll wants none of those. It is an independent project built around a quiet page and a library that belongs to you.

No account, no adsOpen the app and start reading. Nothing to sign up for.
Offline firstBooks open anywhere once they are in your library.
On every screenAndroid, Windows and the web share one backup format.

Questions

Ebook reader questions.

What is the best free ebook reader?

The best reader is the one that fits how you read. DeltaScroll is free, needs no account, works offline, opens EPUB, PDF and DOCX files, and runs on Android, Windows and the web, so it suits people who want a private reader on more than one device.

Does DeltaScroll work without the internet?

Yes. Once a book is in your library you can read it, search it, highlight it and listen to it offline. You only need a connection to download new books or to use Google Drive backup.

Can I read on my phone and my computer?

Yes. Use the Android app on your phone and the Windows app or web reader on your computer. A backup file moves your books, positions and notes between them.

Is DeltaScroll the same as Delta Scroll?

Yes. DeltaScroll is sometimes written as Delta Scroll. It is one app, available on Android, Windows and the web.

Keep exploring

EPUB reader

The EPUB reader made for long reads.

Open EPUB books on Android, Windows or in your browser. DeltaScroll gives you page curls, five themes, six fonts, highlights and read-aloud, all offline.

PDF reader

Read a PDF like a real book.

Read PDFs comfortably on a phone or PC. DeltaScroll turns text PDFs into reflowing books with chapters, so you can change the font, highlight and listen.

Read aloud

Let your books read themselves to you.

Listen to your books with DeltaScroll. Natural voices read EPUB, PDF and DOCX books aloud, each sentence lights up as it is read, and you set the speed.

Free classics