ClickStack vs VictoriaLogs

ClickStack is an open-source observability stack for OpenTelemetry that brings logs, metrics, traces, session replays, and errors into one system. Its HyperDX interface provides Lucene-style search, SQL access, dashboards, alerts, event deltas, and event patterns. A bundled OpenTelemetry Collector handles native collection, while non-OTel wide event data can be used when it has a timestamp field. ClickStack stores data in ClickHouse and is designed for high-cardinality telemetry, with the product site describing sub-second queries even on petabytes of data. It supports self-hosted, hybrid, and cloud deployment. Managed ClickStack runs on ClickHouse Cloud with operations, scaling, upgrades, backups, reliability, authentication, and user management included. The managed offer advertises indefinite retention and storage below one cent per GB. An MCP server connects observability workflows with coding tools, collaboration services, runbooks, and custom agents.

VictoriaLogs is an open-source database for storing and analyzing logs. It accepts structured and unstructured log data without requiring a schema, and LogsQL provides full-text search and log analytics. It supports log pipelines, structured parsing, live tailing, archive export, OpenTelemetry, and a service map. Deployment can be single-node or clustered, using prebuilt binaries, Docker, or Kubernetes. The single-node and cluster versions are available under the Apache License 2.0, and the open-source plan is free. By default, entries older than seven days are dropped. Integrations include Grafana, Perses, Bindplane, and Logchef; ingestion from Vector and Fluent Bit is also described. VictoriaMetrics says the system uses up to 30 times less RAM and up to 15 times less disk space than Elasticsearch and Grafana Loki. HTTPS, Basic Auth, and TLS are supported; security guidance recommends a trusted network or an authorization proxy for internet requests. mTLS is an Enterprise feature, with commercial support also offered.