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Aleph vs Krystal DMS

A side-by-side comparison of two self-hosted document management options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
AL Aleph Search and document management for investigative work VS KR Krystal DMS Web-based document management system in Java
FeatureAlephKrystal DMS
Deploy effortUnder-an-hour setupRead-the-docs project
CategoryDocument ManagementDocument Management
LicenseMITGPL-3.0
LanguageJavaScriptJava
Setup difficultyHardMedium
Min. RAM4,096 MB1,024 MB
Deploymentdockerbare-metal, source
GitHub stars★ 2,437★ 50
First released20162012
ReplacesDocuWare, RelativityDocuWare

What are Aleph and Krystal DMS?

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

Krystal DMS

Krystal DMS is an open-source document management system that helps organizations store, index, and retrieve documents through a web interface. It includes metadata management, search, and permission controls.

  • Metadata indexing
  • Document search
  • Role permissions
  • Web interface

Aleph vs Krystal DMS: key differences

Aleph is written in JavaScript, while Krystal DMS is built with Java. Licensing differs — MIT for Aleph versus GPL-3.0 for Krystal DMS. Krystal DMS is the lighter option, starting around 1,024 MB of RAM against 4,096 MB for Aleph. Krystal DMS is the more established project (first released 2012), while Aleph arrived in 2016. Aleph has the considerably larger community, at 2,437 GitHub stars versus 50. Aleph lists first-class Docker deployment; Krystal DMS does not.

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
Aleph details

Choose Krystal DMS if…

  • Straightforward feature set
  • Free to use

Watch out for

  • Limited modern tooling
  • Sparse documentation
Krystal DMS details

Frequently asked questions

Is Aleph or Krystal DMS better?

Neither is universally better. Aleph has the larger community, while Krystal DMS is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.

Are Aleph and Krystal DMS free and open-source?

Yes. Aleph is licensed under MIT and Krystal DMS under GPL-3.0. Both can be self-hosted at no software cost.

Can I run Aleph and Krystal DMS with Docker?

Aleph: yes. Krystal DMS: check the project docs for container support.

Which is lighter on resources, Aleph or Krystal DMS?

Krystal DMS has the smaller minimum footprint at 1,024 MB of RAM, compared to about 4,096 MB for Aleph. Real-world usage depends on library size, user count, and enabled features.

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