

Graylog license, foundation and stars
Search and vector · SSPL v1 (source-available) · backed by Graylog · 8,176 stars
Free and open log management
Source-availableNov 16, 2020
GPL v3 to SSPL v1
Graylog 4.0 moved from GPLv3 to SSPL.
Latest release
No GitHub releases published; the project releases elsewhere (tags or its own site).
More in search and vector
| Project | License | Stars | Per week | Latest release |
|---|
ElasticsearchFree and Open Source, Distributed, RESTful Search Engine.ElasticAGPL v3 or SSPL or ELv2 | AGPL v3 or SSPL or ELv2changed Sep 2024 | 78.5k | +80 | v9.5.4Sep 15, 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
- Graylog2/graylog2-server · created May 17, 2010
- Website
- graylog.org
- Language
- Java
- Foundation
- None; run by Graylog
- Company
- Graylog · on Companies · on advisories · on calendar · on Paydays · on socials · on sunsets
- GitHub detects
- NOASSERTION (a custom or multi-license file; the license above is read from the file itself)
- Stars per week
- 4 (GitHub weekly snapshots)
Weekly snapshots
| Week of | Bar | Stars |
|---|
| Nov 9, 2026 | | 8,176 |
| Oct 26, 2026 | | 8,171 |
| Oct 19, 2026 | | 8,160 |
| Oct 12, 2026 | | 8,151 |
| Sep 28, 2026 | | 8,151 |
| Sep 21, 2026 | | 8,146 |
Changes
Stars per weekNov 11, 2026
Gains about 4 stars a week, down from 5.
Stars per weekNov 1, 2026
Gains about 5 stars a week, up from 4.
Stars per weekOct 22, 2026
Gains about 4 stars a week, up from 2.
Stars per weekOct 13, 2026
Gains about 2 stars a week, down from 5.
Stars per weekOct 3, 2026
Gains about 5 stars a week.
RelicensedSep 25, 2026
Relicensed from GPL v3 to SSPL v1.
TrackedSep 25, 2026
Now tracked, from Graylog2/graylog2-server on GitHub.