Dev tools · alternatives · 2026

24 alternatives to Calibre eBook Manager

Convert any eBook to any format (free and open source)

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Calibre eBook Manager launched in 2014; newer entries below may have overtaken it.

1
Calibre 2.0▲76
The one stop solution to all your ebook needs
2014 · its alternatives →
2
eBook Generator▲142
Transform your PDF into a beautiful eBook
2014 · hub.uberflip.com · its alternatives →
3
SE eBook▲152
SE eBook
2014 · gumroad.com · its alternatives →
4
Liberio▲144
Simple eBook creation and publishing right from Google Drive
2014 · its alternatives →
5
Citadel – a Calibre-compatible eBook management app▲338
Hey folks! This winter I've been building Citadel to scratch my itch of managing ebooks without using Calibre. Calibre is incredibly powerful, but it's slow and awkward to use. I dreamed of writing a native app (and originally tried this in Swift), but ran into issues building the UI. Plus, whatever I built would only work on macOS. I started writing Citadel using Tauri (Svelte on the frontend + Rust on the backend) to have a cross-platform desktop app. Plus, Citadel supports running in a headless / webbrowser mode. You can self-host a Citadel server that manages your library, and…
2024 · github.com · its alternatives →
6
Liberio▲86
One click eBook publishing from Google Drive (pre-launch)
2013 · its alternatives →
7
Tablo▲115
Medium for ebooks.
2014 · tablo.io · its alternatives →
8
Weekend software products▲65
Free eBook on Building Software Products in a Weekend
2014 · its alternatives →
9
Beacon▲110
Create a beautiful ebook from blog posts in seconds
2016 · beacon.by · its alternatives →
10
Epub.to – ePub to pdf, mobi, Kindle, and an API▲246
EPUB.to converts EPUB to PDF, MOBI, AZW3, TXT, and more. Convert any document to EPUB for e-readers. The easiest way to manage, convert, and optimize eBook files online for free.
2021 · epub.to · its alternatives →
11
docs2epub▲201
Get your favorite docs as eBooks
2016 · javier.xyz · its alternatives →
12
Doc Hub▲127
Edit, send & sign PDFs online for free.
2015 · dochub.com · its alternatives →
13
Safari ▲97
Spotify for Ebooks
2014 · oreilly.com · its alternatives →
14
Ebookany▲132
Turn any web content into your personal ebook, instantly
2024 · ebookany.com · its alternatives →
15
OverDrive▲62
eBook lending for free through public libraries
2014 · overdrive.com · its alternatives →
16
PitchXO▲132
Goodbye PDFs. Beautiful pitch pages you can track.
2014 · pitchxo.com · its alternatives →
17
Sign and Return▲119
Free PDF filling and signing over email.
2016 · signandreturn.com · its alternatives →
18
Pressbooks▲108
Create books: print and ebooks
2015 · pressbooks.com · its alternatives →
19
Marvin▲63
eBook reader for iOS. Your books, everywhere.
2014 · appstafarian.com · its alternatives →
20
Magic Bookifier▲89
Turn your ideas into a book in one click
2023 · magicbookifier.ai · its alternatives →
21
KimDigest▲93
Open source reader for beyond RSS
2014 · its alternatives →
22
Conversion AI▲89
Find the right tools to convert almost any file
2015 · conversionai.com · its alternatives →
23
PDFLeads▲91
Get more leads from your pdf content
2015 · pdfleads.com · its alternatives →
24
Authorea▲94
GitHub for scientific works
2014 · authorea.com · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →