OpenSearch
Distributed and RESTful search engine.
- Search Engines
- Java
- Apache-2.0
- Docker
- Actively maintained
GitHub stats
- GitHub stars
- 13,815
- Forks
- 2,988
- Open issues
- 2,522
- Commits, last 12 months
- 1,370
- Last commit
- Oct 6, 2026
- Latest release
- 3.9.0Sep 29, 2026
- Created
- Jan 29, 2021
Data from the GitHub API, refreshed daily.
About OpenSearch
Distributed and RESTful search engine. OpenSearch is open source under the Apache-2.0 license and written mainly in Java, so you can read the code, run it on your own hardware and keep full control of your data.
The project has 13,815 stars and 2,988 forks on GitHub, with 1,370 commits over the last year. It ships a Docker image, which makes it a good fit for a small VPS or a home server running Docker Compose.
Topics
- search
- search-engine
- analytics
- java
- foss
- apache2
Open-source alternative to
OpenSearch can replace these commercial products. Compare every option on each page.
Repository preview
Similar apps
More apps like OpenSearch
Other projects in Search Engines, ranked by GitHub stars.
ElasticSearch
elastic/elasticsearch
Distributed, RESTful search and analytics engine.
Search EnginesJavaMeiliSearch
meilisearch/meilisearch
Ultra relevant, instant and typo-tolerant full-text search API.
Search EnginesRustDockerSearXNG
searxng/searxng
Internet metasearch engine which aggregates results from various search services and databases (Fork of Searx).
Search EnginesPythonDockerTypesense
typesense/typesense
Blazing fast, typo-tolerant open source search engine optimized for developer happiness and ease of use.
Search EnginesC++DockerManticore Search
manticoresoftware/manticoresearch
Full-text search and data analytics, with fast response time for small, medium and big data (alternative to Elasticsearch).
Search EnginesC++DockerHister
asciimoo/hister
Personal web search engine with automatic indexing of visited websites. Supports offline local result previews, local files, multi-user handling and optional semantic search.
Search EnginesGoDocker
What is OpenSearch?
OpenSearch is a free, open-source app you can host on your own server, listed in our Search Engines category. Distributed and RESTful search engine. The source code lives at github.com/opensearch-project/OpenSearch, where it has 13,815 stars.
Is OpenSearch free and open source?
Yes. OpenSearch is open-source software released under the Apache-2.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run OpenSearch with Docker?
Yes. OpenSearch provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. The project README lists the image name and the environment variables to set.
What are the best alternatives to OpenSearch?
Popular open-source alternatives to OpenSearch include ElasticSearch, MeiliSearch and SearXNG. OpenSearch itself is a self-hosted alternative to Algolia.
Is OpenSearch actively maintained?
The most recent commit to OpenSearch was on Oct 6, 2026 with 1,370 commits in the past twelve months. The latest release is 3.9.0, published Sep 29, 2026. Check the open issues on GitHub to gauge how quickly maintainers respond.