ElasticSearch
Search Engines
Distributed, RESTful search and analytics engine.
Actively maintained
Real momentum
SSPL-1.0
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.
Aleph is an open-source search engines project, with 2.4k GitHub stars and a health score of 23/100. It committed 15 times in the last twelve months across 3 of those months, and its status is dormant. Licence: MIT. It does not currently meet the momentum threshold, so verify maintenance before depending on it.
| Status | Dormant — No meaningful commits for months. |
|---|---|
| Last commit | 2025-12-19 |
| Days since last commit | 241 |
| Commits, last 3 months | 0 |
| Commits, last 12 months | 15 |
| Months with activity | 3 of 12 |
| Last release | 2025-10-27 |
| Archived | No |
| Licence | MIT |
| Category | Search Engines |
Health score combines commit recency, twelve-month commit volume, months with activity, release recency and archive state. Metadata refreshed August 2026.
Permissive (MIT, Apache, BSD): you can fork it, close the source and sell it. Lowest legal friction for a commercial product.
This matters most when you plan to sell a hosted version. A permissive licence means anyone — including a competitor with more capital — can do the same, so your defensibility has to come from distribution, support or data, not from the code.
Aleph is not currently shipping at a healthy pace. Popular but stalled projects inflate how competitive a category looks — and they are also risky to build on.
Winnable, but differentiation is not optional. Pick one underserved segment and be visibly better for it rather than competing feature-for-feature with a free tool.
Dormant. Aleph recorded 15 commits over the last twelve months, with activity in 3 of those months and 0 commits in the last quarter. Last commit: 2025-12-19. Last release: 2025-10-27. No meaningful commits for months.
Aleph is published under MIT. Permissive (MIT, Apache, BSD): you can fork it, close the source and sell it. Lowest legal friction for a commercial product.
16 open-source implementations, 11 of them actively maintained, led by ElasticSearch at 78k stars. Saturation score 47/100 — Contested. Several maintained alternatives exist, but no one owns the category.
Search Engines
Distributed, RESTful search and analytics engine.
Alternative to Algolia, Search
Ultra relevant, instant and typo-tolerant full-text search API.
Search Engines
Internet metasearch engine which aggregates results from various search services and databases (Fork of Searx).
Alternative to Algolia, Digital search experience, Search
Blazing fast, typo-tolerant open source search engine optimized for developer happiness and ease of use.
Search Engines
Search engine that requires minimal resources (alternative to Elasticsearch).
Search Engines
Distributed and RESTful search engine.
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