Quickwit

Quickwit is an open-source search engine built specifically for observability use cases - searching logs and distributed traces - rather than general-purpose application search. Its defining design choice is indexing and querying data directly on object storage like S3 instead of requiring data to live on attached disks, which lets storage and compute scale independently and keeps the cost of retaining large volumes of log data far lower than disk-backed search systems.

It's commonly deployed as the search backend behind log management and distributed tracing tools, and is designed to be fast to query even over data sitting entirely in object storage, an architecture built around the reality that most log data is written once and queried rarely.

Quickwit is a fit for teams with large volumes of log or trace data who want full-text search without the operational cost of keeping it all on disk, a more specialized tool than the general-purpose Elasticsearch, OpenSearch, or Meilisearch entries already in this catalog, which are built for application and website search rather than observability data specifically.