Open Semantic Search vs OpenDocMan
A side-by-side comparison of two self-hosted document management options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Open Semantic Search | OpenDocMan |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 20 · At risk | 77 · Good |
| Category | Document Management | Document Management |
| License | GPL-3.0 | GPL-2.0 |
| Language | Shell | PHP |
| Setup difficulty | Hard | Medium |
| Min. RAM | 4,096 MB | 512 MB |
| Deployment | docker, bare-metal, source | bare-metal, docker, source |
| GitHub stars | ★ 1,213 | ★ 283 |
| First released | 2014 | 2004 |
| Replaces | DocuWare, M-Files | DocuWare, M-Files |
What are Open Semantic Search and OpenDocMan?
Open Semantic Search
Open Semantic Search is an open-source search engine and integrated text analytics suite for searching, monitoring, and analyzing large collections of documents. It supports OCR and entity extraction.
- Full-text and faceted search
- OCR of scanned documents
- Named entity extraction
- Document tagging
OpenDocMan
OpenDocMan is an open-source, web-based document management system written in PHP. It features fine-grained access control, automated check-in and check-out, and file metadata management.
- Fine-grained file access control
- Check-in and check-out
- File metadata and categories
- LDAP support
Open Semantic Search vs OpenDocMan: key differences
Open Semantic Search is written in Shell, while OpenDocMan is built with PHP. Licensing differs — GPL-3.0 for Open Semantic Search versus GPL-2.0 for OpenDocMan. OpenDocMan is the lighter option, starting around 512 MB of RAM against 4,096 MB for Open Semantic Search. OpenDocMan is the more established project (first released 2004), while Open Semantic Search arrived in 2014. Open Semantic Search has the considerably larger community, at 1,213 GitHub stars versus 283.
Why pick each one
Choose Open Semantic Search if…
- Powerful analytics on archives
- Handles many file formats
Watch out for
- Heavy resource requirements
- Complex to set up
Choose OpenDocMan if…
- Runs on a standard LAMP stack
- Simple to deploy
Watch out for
- Dated interface
- Limited modern features
Frequently asked questions
Is Open Semantic Search or OpenDocMan better?
Neither is universally better. Open Semantic Search has the larger community, while OpenDocMan is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Open Semantic Search and OpenDocMan free and open-source?
Yes. Open Semantic Search is licensed under GPL-3.0 and OpenDocMan under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Open Semantic Search and OpenDocMan with Docker?
Open Semantic Search: yes. OpenDocMan: yes.
Which is lighter on resources, Open Semantic Search or OpenDocMan?
OpenDocMan has the smaller minimum footprint at 512 MB of RAM, compared to about 4,096 MB for Open Semantic Search. Real-world usage depends on library size, user count, and enabled features.