# Aleph

> Aleph is a free, open-source app you can self-host in the search engines category. Tool for indexing large amounts of both documents (PDF, Word, HTML) and structured (CSV, XLS, SQL) data for easy browsing and search. It is built with investigative reporting as a primary use case. It has 2,441 GitHub stars, is released under the MIT license and ships a Docker image.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/alephdata/aleph |
| Website | https://aleph.occrp.org/ |
| Demo | https://aleph.occrp.org/ |
| GitHub stars | 2,441 |
| Forks | 365 |
| Open issues | 266 |
| License | MIT |
| License type | Open source |
| Language | JavaScript |
| Docker image | Yes |
| Platforms | Docker, K8S |
| Categories | Search Engines, Wikis & Knowledge Bases |
| Commits, last 12 months | 4 |
| Last commit | Feb 20, 2026 |
| Latest release | 4.1.7 (Oct 27, 2025) |
| Created | Aug 27, 2014 |
| Maintenance | Maintained |
| Archived | No |

Topics: python, data-search, graph-database, journalism, osint, investigative-journalism

## Install

Aleph ships a Docker image; follow the README at https://github.com/alephdata/aleph for the image name and environment variables.

Need it installed for you? [appsgit installation help](https://appsgit.com/services/install): a fixed quote by email, single app installs from $79.

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