Ambar 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 | Ambar | OpenDocMan |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 15 · At risk | 77 · Good |
| Status | Archived | Actively maintained |
| Category | Document Management | Document Management |
| License | Apache-2.0 | GPL-2.0 |
| Language | JavaScript | PHP |
| Setup difficulty | Medium | Medium |
| Min. RAM | 2,048 MB | 512 MB |
| Deployment | docker, source | bare-metal, docker, source |
| GitHub stars | ★ 1,943 | ★ 283 |
| First released | 2017 | 2004 |
| Replaces | DocuWare, M-Files | DocuWare, M-Files |
What are Ambar and OpenDocMan?
Ambar
Ambar is an open-source document search engine that automatically crawls, OCRs, and indexes documents from configured sources. It provides a fast unified search across many file types.
- Automatic document crawling
- OCR on images and PDFs
- Unified full-text search
- Tagging and labels
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
Ambar vs OpenDocMan: key differences
The biggest difference is maintenance: Ambar's repository is archived and no longer developed, while OpenDocMan is actively maintained. Ambar is written in JavaScript, while OpenDocMan is built with PHP. Licensing differs — Apache-2.0 for Ambar versus GPL-2.0 for OpenDocMan. OpenDocMan is the lighter option, starting around 512 MB of RAM against 2,048 MB for Ambar. OpenDocMan is the more established project (first released 2004), while Ambar arrived in 2017. Ambar has the considerably larger community, at 1,943 GitHub stars versus 283.
Why pick each one
Choose Ambar if…
- Fast search across many sources
- Good OCR coverage
Watch out for
- Development has slowed
- Elasticsearch increases memory needs
Choose OpenDocMan if…
- Runs on a standard LAMP stack
- Simple to deploy
Watch out for
- Dated interface
- Limited modern features
Frequently asked questions
Is Ambar or OpenDocMan better?
Neither is universally better. Ambar has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Ambar and OpenDocMan free and open-source?
Yes. Ambar is licensed under Apache-2.0 and OpenDocMan under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Ambar and OpenDocMan with Docker?
Ambar: yes. OpenDocMan: yes.
Which is lighter on resources, Ambar or OpenDocMan?
OpenDocMan has the smaller minimum footprint at 512 MB of RAM, compared to about 2,048 MB for Ambar. Real-world usage depends on library size, user count, and enabled features.