head to head · open source
koodo-reader vs EpubReader
koodo-reader has 28,699 GitHub stars, 2,148 forks, 271 open issues and last shipped 2 days ago. EpubReader has 552 stars, 106 forks, 5 open issues and last shipped 7 months ago. koodo-reader leads on adoption by 5,099% (28,699 vs 552 stars). koodo-reader is written in JavaScript under AGPL-3.0; EpubReader is written in C# under Unlicense. koodo-reader has attracted 7% as many forks as stars, EpubReader 19%. koodo-reader was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (epub), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| koodo-reader | EpubReader | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 552 |
| License | AGPL-3.0 | Unlicense |
| Written in | JavaScript | C# |
| Last push | 2026-11-01 | 2026-04-18 |
| Forks | ⑂ 2.1K | ⑂ 106 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick koodo-reader if
- You weight community size — 29K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick EpubReader if
- You want the EpubReader feature set and don't need the biggest community
- You prefer the Unlicense license terms
- Your stack matches C#
- You evaluated both and EpubReader fits your workflow better
About koodo-reader
简体中文 हिंदी Português Indonesian English Türkçe Koodo Reader A cross platform ebook reader Download Preview Roadmap Document Plugins Preview Features Format support: EPUB ( .epub ) PDF ( .pdf ) DRM free Mobipocket ( .mobi ) and Kindle ( .azw3 , .azw ) Plain text ( .txt ) FictionBook ( .fb2 ) Comic book archive ( .cbr , .cbz , .cbt , .cb7 ) Rich text ( .md , .docx ) HyperText ( .html , .xml , .xhtml , .mhtml , .htm ) Platform support: Windows , macOS , Linux , Android , iOS and Web Sync and backup your data with OneDrive , Google Drive , Dropbox , iCloud , MEGA , pCloud , Yandex Disk , Box , FTP , SFTP , WebDAV…
read the full koodo-reader overview →
About EpubReader
.NET library for reading EPUB files. Supported EPUB standards: EPUB 2 (2.0, 2.0.1) EPUB 3 (3.0, 3.0.1, 3.1, 3.2, 3.3) Supported runtimes: .NET Standard = 1.3 (includes .NET Core = 1.0 and .NET = 5) .NET Framework = 4.6 Download Documentation WPF & .NET 10 console demo apps EpubReader in a nutshell Demo apps Download WPF demo app (WpfDemo.zip) This .NET Framework application demonstrates how to open EPUB books and extract their content using the library. HTML renderer used in this demo app may have difficulties while rendering content for some of the books if the HTML structure is too complicated. Download .NET…
read the full EpubReader overview →
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Frequently asked questions
Is koodo-reader or EpubReader more popular?
koodo-reader has 28,699 GitHub stars and EpubReader has 552. koodo-reader has the larger community by that measure.
Are koodo-reader and EpubReader free?
Both are open source. koodo-reader is licensed under AGPL-3.0 and EpubReader under Unlicense. Neither carries a licence fee.
What is the difference between koodo-reader and EpubReader?
koodo-reader is written in JavaScript and EpubReader in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, koodo-reader or EpubReader?
Choose koodo-reader if you want the larger community (28,699 stars) or its AGPL-3.0 licence terms. Choose EpubReader if its feature set, stack or Unlicense licence fits better. Both are self-hostable.