head to head · open source
koodo-reader vs HRConvert2
koodo-reader has 28,699 GitHub stars, 2,148 forks, 271 open issues and last shipped 2 days ago. HRConvert2 has 1,384 stars, 81 forks, 2 open issues and last shipped yesterday. koodo-reader leads on adoption by 1,974% (28,699 vs 1,384 stars). koodo-reader is written in JavaScript under AGPL-3.0; HRConvert2 is written in PHP under GPL-3.0. koodo-reader has attracted 7% as many forks as stars, HRConvert2 6%. HRConvert2 was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ebook), 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 | HRConvert2 | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 1.4K |
| License | AGPL-3.0 | GPL-3.0 |
| Written in | JavaScript | PHP |
| Last push | 2026-11-01 | 2026-11-02 |
| Forks | ⑂ 2.1K | ⑂ 81 |
| 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 HRConvert2 if
- You want the HRConvert2 feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches PHP
- You evaluated both and HRConvert2 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 HRConvert2
🔁 HRConvert2 Self Hosted, Resource Aware, Public Facing File Conversion Server No database. No cookies. No tracking. Nothing leaves your server. Get Started · Documentation · Docker Image 🔒 Why HRConvert2? Every free online file converter is actually a data collection business in disguise. Upload a contract, medical scan, or proprietary CAD file? You just handed it to a stranger with an ad network. HRConvert2 is different. Same convenience. Zero compromise. Conversions happen on your machine using local tools Users need no account and leave no trace Runs on a Raspberry Pi Workflow: Drag, drop, convert…
read the full HRConvert2 overview →
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Frequently asked questions
Is koodo-reader or HRConvert2 more popular?
koodo-reader has 28,699 GitHub stars and HRConvert2 has 1,384. koodo-reader has the larger community by that measure.
Are koodo-reader and HRConvert2 free?
Both are open source. koodo-reader is licensed under AGPL-3.0 and HRConvert2 under GPL-3.0. Neither carries a licence fee.
What is the difference between koodo-reader and HRConvert2?
koodo-reader is written in JavaScript and HRConvert2 in PHP. 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 HRConvert2?
Choose koodo-reader if you want the larger community (28,699 stars) or its AGPL-3.0 licence terms. Choose HRConvert2 if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.