Vector is an open-source tool for building observability pipelines. It collects, transforms and routes logs and metrics from many sources to many destinations, and includes programmable transforms in its own language, Vector Remap Language (VRL). Written in Rust, it ships as a single binary and can run as a daemon, a sidecar or an aggregator, on Linux, Windows, macOS, Docker and Kubernetes. Configuration is done in YAML, TOML or JSON. Vector is software you run yourself and is not a hosted service.
Vector is maintained by Datadog, Inc., a US company, through its Community Open Source Engineering team, and is released under the Mozilla Public License 2.0. As the software runs in your own infrastructure, the telemetry passing through it stays where you deploy it, and you decide which destinations it is routed to. That lets a European organisation filter or redact data before it leaves its environment. The project's governance remains with its maintainer, Datadog, so roadmap decisions rest with a single US company.