

Elasticsearch license, foundation and stars
Search and vector · AGPL v3 or SSPL v1 or Elastic License 2.0 (open source) · backed by Elastic · 78,429 stars
Free and Open Source, Distributed, RESTful Search Engine
Open sourceSep 13, 2024
SSPL v1 or Elastic License 2.0 to AGPL v3 or SSPL v1 or Elastic License 2.0
AGPL v3 added as a third option, making Elasticsearch open source again.
Source-availableFeb 2, 2021
Apache 2.0 to SSPL v1 or Elastic License 2.0
Elastic moved Elasticsearch and Kibana off Apache 2.0 to a choice of SSPL or the Elastic License, from 7.11.
Forks it prompted
| Date | Project | What |
|---|
| Apr 12, 2021 | OpenSearch | Apr 12, 2021: Forked from Elasticsearch 7.10.2. Source |
Latest release
v9.5.4 published Sep 15, 2026
More in search and vector
| Project | License | Stars | Per week | Latest release |
|---|
OpenSearchOpen source distributed and RESTful search engine.OpenSearch Foundation · fork of ElasticsearchApache 2.0 | Apache 2.0 | 14k | +30 | 3.8.0Aug 5, 2026 |
MeilisearchA lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.MeilisearchMIT for most code, Business Source License 1.1 for Enterprise Edition parts | MIT for most code, Business Source License 1.1 for Enterprise Edition partschanged Jul 2025 | 59.8k | +58 | - |
MilvusMilvus is a high-performance, cloud-native vector database built for scalable vector ANN search.LF AI & DataApache 2.0 | Apache 2.0 | 46.6k | +51 | v3.0.2Sep 20, 2026 |
QdrantQdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI.QdrantApache 2.0 | Apache 2.0 | 35.4k | +105 | v1.19.1Sep 4, 2026 |
chromaSearch infrastructure for AI.Apache 2.0 | Apache 2.0 | 29.7k | +47 | - |
typesenseOpen Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences.GPL v3 | GPL v3 | 27.1k | +85 | - |
pgvectorOpen-source vector similarity search for Postgres.Custom or mixed (see the LICENSE file) | Custom or mixed (see the LICENSE file) | 23.6k | +70 | - |
sonicFast, lightweight & schema-less search backend.MPL 2.0 | MPL 2.0 | 21.4k | +5 | - |
About and history
- Repository
- elastic/elasticsearch · created Feb 8, 2010
- Website
- elastic.co/products/elasticsearch
- Language
- Java
- Foundation
- None; run by Elastic
- Company
- Elastic · on Companies · on Acquisitions · on advisories · on awards · on blogs · on breaches · on calendar · on Attested · on Quarterly · on Downtime · on Leaders · on marketplaces · on Allied · on Paydays · on Metered · on problems · on quadrant · on Releases · on salaries · on Nines · on socials · on standards · on Stories · on sunsets · on TechConf · on terms · on Titlewave
- GitHub detects
- NOASSERTION (a custom or multi-license file; the license above is read from the file itself)
- Stars per week
- 89 (GitHub weekly snapshots)
Weekly snapshots
| Week of | Bar | Stars |
|---|
| Oct 26, 2026 | | 78,429 |
| Oct 19, 2026 | | 78,333 |
| Oct 12, 2026 | | 78,240 |
| Sep 28, 2026 | | 78,028 |
| Sep 21, 2026 | | 77,986 |
Changes
Stars per weekOct 31, 2026
Gains about 89 stars a week, up from 87.
Stars per weekOct 21, 2026
Gains about 87 stars a week, up from 85.
Stars per weekOct 13, 2026
Gains about 85 stars a week, up from 42.
Stars per weekSep 28, 2026
Gains about 42 stars a week, down from 46.
TrackedSep 24, 2026
Now tracked, from elastic/elasticsearch on GitHub.