OpenSearch
Vector & Search · Free + paid
Community-driven fork of Elasticsearch
At a glance
- Made by
- OpenSearch Software Foundation (a Linux Foundation project)
- Korean
- None (English and a few others only)
- API
- Yes
- Available on
- API
- Open source
- Apache 2.0
- GitHub
- 13,867 stars · Apache-2.0
What is OpenSearch?
OpenSearch is a community-driven open-source suite of search and analytics products for ingesting, searching, visualizing, and analyzing data. It consists of a data store and search engine (OpenSearch), visualization and UI (OpenSearch Dashboards), and a server-side data collector (Data Prepper), and plugins can extend it with search, analytics, observability, security, and machine learning features. It is built on Apache Lucene and was announced in January 2021 as an open-source fork of Elasticsearch and Kibana. In September 2024, the OpenSearch Software Foundation was created under the Linux Foundation.
- Search and analytics engine based on Apache Lucene (OpenSearch Core)
- OpenSearch Dashboards, a data visualization and exploration tool
- Data Prepper for processing and aggregating ingested data
- Vector engine for AI and machine learning (vector search)
- Anomaly detection
- Log analytics and observability stack
- Security analytics, threat intelligence, and event correlation analysis
- Language-specific client APIs and migration tools
Who uses OpenSearch and for what
- Building e-commerce, enterprise, and document search
- Identifying application and infrastructure problems (log analytics and performance monitoring)
- Real-time security threat detection and response
Pricing
What you get for free — Open source (Apache 2.0) — no paid plans on the official page
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying.
AI tools similar to OpenSearch (alternatives)
OpenSearch vs. alternatives at a glance
| AI | Pricing | Combos on the map | Connected tools | Free | Cheapest monthly | Korean |
|---|---|---|---|---|---|---|
| OpenSearch | Free + paid | 0 | 2 | No | — | No |
| Elasticsearch | Free + paid | 0 | 2 | No | — | No |
| Vespa | Free + paid | 0 | 2 | No | — | No |
0 of these 3 tools have a free plan.
Combo and connection counts are based on the relationships recorded on AI Galaxy Map (2026-10-26); they are not a quality ranking.
OpenSearch on AI Galaxy Map
- One of 12 AI tools in the Vector & Search field.
- Connected to 2 other tools — #7 in its field.
Frequently asked questions
Can I use OpenSearch for free?
Open source (Apache 2.0) — no paid plans on the official page. Prices can change, so check the official site before paying.
What AI can I use instead of OpenSearch?
Tools that do the same job, such as Elasticsearch, Vespa, are connected to it on the map.
Can I use OpenSearch in Korean?
None (English and a few others only)
Sources (official pages)
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying.