Seq
A self-hosted server for searching, analysing and alerting on structured logs, traces and metrics.
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About Seq
Seq collects structured logs, traces and metrics from applications and keeps them on your own infrastructure. You can filter and pivot on log events with its query language, follow traces to diagnose slow requests and service dependencies, and chart live metrics.
Alerts can be set on custom conditions and sent to Slack, Teams or email. A CLI and MCP integration let AI agents query data. It has been developed since 2013 and suits developers supporting their own applications.
Strengths
- Keeps log data on your own infrastructure
- Logs, traces and metrics in one place
- Alerts to Slack, Teams and email
- CLI and MCP integration for agents
Limitations
- Proprietary, not open source
- You run and maintain the server yourself
Details
- Pricing
- FreemiumProprietary software under the Datalust EULA; see the site for license options.
- License
- Proprietary (Proprietary)
- Developer
- Datalust
- Platforms
- Self-hosted
- How it runs
- Self-hosted
- Best suited for
- Development teams wanting self-hosted structured logging and tracing
- Categories
- System monitoring, Developer tools
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to Seq
Compare allSoftware that can replace Seq for an important use case, and what changes if you switch.
Graylog
Self-hosted enterprise log management platform with stream processing and alerts.
Graylog is an open-source self-hosted log platform with stream processing and content packs, though enterprise features need a paid tier and scale needs server resources.
Elastic Stack
Elasticsearch, Logstash, Beats and Kibana combined for collecting, searching and visualizing logs and other data.
Elastic Stack combines Elasticsearch, Logstash, Beats and Kibana for self-hosted log search and dashboards, with several services to run and higher resource use.
OpenObserve
Collect logs, metrics and traces in a unified observability application.
OpenObserve is AGPL-licensed and collects logs, metrics and traces in one self-hosted application, with enterprise features priced separately.
SigNoz
Open-source full-stack observability platform built on OpenTelemetry and ClickHouse.
SigNoz is an open-source platform built on OpenTelemetry and ClickHouse that combines logs, traces and metrics, at the cost of running your own ClickHouse stack.
Parseable
Rust-based self-hosted logging server with columnar storage and a built-in UI.
Parseable is an open-source Rust logging server with S3-native columnar storage and a built-in UI with SQL queries, but it is a younger project.
HyperDX
Investigate application failures using linked logs, traces and related telemetry.
HyperDX is MIT-licensed and links logs, traces and related telemetry for debugging on your own infrastructure, requiring instrumentation and supporting storage.
Uptrace
Explore traces, metrics and logs collected through OpenTelemetry.
Uptrace is AGPL-licensed and explores traces, metrics and logs collected through OpenTelemetry, with self-hosted deployment on supported storage.
Grafana Loki
Collect and query application logs using label-based indexing.
Grafana Loki is AGPL-licensed log storage with label-based indexing that pairs with Grafana for exploration, but needs separate collectors and has no built-in alerting to chat.
Similar software
Related functionality, not necessarily a direct replacement.
VictoriaLogs
Store and search logs with a dedicated log-management server.
lnav
A terminal log file viewer that merges, tails, searches, filters and queries log files with SQL.
Fluent Bit
Lightweight agent that collects, processes and forwards logs, metrics and traces.
OpenTelemetry Collector
Receive, process and export telemetry through a vendor-neutral collector.
ElastAlert 2
A self-hosted alerting tool that watches Elasticsearch and OpenSearch data and sends notifications when patterns match.
Grafana
Dashboard and visualization front end for metrics, logs and traces.
