Aleph vs Ambar
A side-by-side comparison of two self-hosted document management options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Aleph | Ambar |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 61 · Good | 15 · At risk |
| Status | Actively maintained | Archived |
| Category | Document Management | Document Management |
| License | MIT | Apache-2.0 |
| Language | JavaScript | JavaScript |
| Setup difficulty | Hard | Medium |
| Min. RAM | 4,096 MB | 2,048 MB |
| Deployment | docker | docker, source |
| GitHub stars | ★ 2,437 | ★ 1,943 |
| First released | 2016 | 2017 |
| Replaces | DocuWare, Relativity | DocuWare, M-Files |
What are Aleph and Ambar?
Aleph
Aleph is an open-source tool for indexing, searching, and cross-referencing large collections of documents and structured data, built for investigative journalism. It performs OCR, entity extraction, and link analysis across archives.
- OCR and text extraction
- Entity cross-referencing
- Full-text document search
- Investigative archives
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
Aleph vs Ambar: key differences
The biggest difference is maintenance: Ambar's repository is archived and no longer developed, while Aleph is actively maintained. Both projects are written in JavaScript. Licensing differs — MIT for Aleph versus Apache-2.0 for Ambar. Ambar is the lighter option, starting around 2,048 MB of RAM against 4,096 MB for Aleph.
Why pick each one
Choose Aleph if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Active community (2.4k GitHub stars)
- Written in JavaScript
Choose Ambar if…
- Fast search across many sources
- Good OCR coverage
Watch out for
- Development has slowed
- Elasticsearch increases memory needs
Frequently asked questions
Is Aleph or Ambar better?
Neither is universally better. Aleph has the larger community, while Ambar is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Aleph and Ambar free and open-source?
Yes. Aleph is licensed under MIT and Ambar under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Aleph and Ambar with Docker?
Aleph: yes. Ambar: yes.
Which is lighter on resources, Aleph or Ambar?
Ambar has the smaller minimum footprint at 2,048 MB of RAM, compared to about 4,096 MB for Aleph. Real-world usage depends on library size, user count, and enabled features.