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Elastic Common Schema (ECS)

The Elastic Common Schema (ECS) defines a common set of fields for ingesting data into Elasticsearch. A common schema helps you correlate data from sources like logs and metrics or IT operations analytics and security analytics.


The ECS reference is published on the main Elastic documentation website. Visit the official ECS Reference Documentation.

Getting Started

Please review the tooling usage guide to get started using the tools provided in this repo.


If you're looking to contribute to ECS, you're invited to look at our contribution guide. Substantial changes to ECS are completed through our RFC process.

Generated artifacts

Various kinds of files or programs can be generated based on ECS. You can learn more in generated/

Releases of ECS

The master branch of this repository should never be considered an official release of ECS. You can browse official releases of ECS here.

The ECS team publishes improvements to the schema by following Semantic Versioning. Generally major ECS releases are planned to be aligned with major Elastic Stack releases.

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