Datadog
Curated list of 7 open source alternatives to Datadog
Our top recommended open source alternative for Datadog is Prometheus. Not what you're looking for? We've curated a list of 7 quality open source Datadog replacements to fit your specific needs. Notable open source options for Datadog include: OpenStatus, Quickwit, Graylog.
Datadog alternatives primarily fall under Alerting Systems, Service Monitoring or DevOps Tools. Explore these categories for more targeted solutions or specific Datadog features you need.
Prometheus is a leading open-source monitoring and alerting system designed for reliability and scalability in modern cloud environments.
Key Features
- Dimensional data model with metric names and key-value pairs
- PromQL query language for flexible data analysis and alerting
- Multi-mode visualization with built-in browser and Grafana integration
- Efficient local storage with functional sharding capabilities
- Independent server architecture for enhanced reliability

An open-source uptime monitoring and status page platform that proactively monitors APIs and websites worldwide to detect performance issues and downtime.
Key Features
- Global latency monitoring from multiple continents and regions
- Comprehensive endpoint monitoring (API, DNS, SSL, SMTP, ping, webpages)
- Customizable status pages with custom domains and user subscriptions
- Monitoring as Code with YAML configuration and CLI management
- OpenTelemetry integration for exporting metrics to observability stacks

Quickwit is a cloud-native search engine designed for observability workloads, offering an open-source alternative to Datadog, Elasticsearch, and Splunk with sub-second search performance on cloud storage.
Key Features
- Sub-second search performance on cloud storage (S3, Azure Blob, GCS)
- Elasticsearch-compatible API for seamless integration with existing clients
- Native support for OpenTelemetry logs and traces, plus Jaeger compatibility
- Decoupled compute and storage architecture with stateless components
- Built-in Grafana data source for observability dashboards

Graylog is a comprehensive log management and SIEM platform that provides detection, investigation, and response capabilities without compromise, serving as a powerful alternative to Splunk.
Key Features
- Real-time threat detection and SIEM capabilities with automated investigation workflows
- Built-in telemetry pipeline management with native data routing and selective retrieval
- Flexible deployment options: cloud, on-premises, or hybrid environments
- Cost-efficient log management without ingestion-based pricing or vendor lock-in
- UEBA anomaly detection for identifying unusual user and entity behavior

An open-source uptime monitoring and status page platform that detects website and API downtime before your users do.
Key Features
- Multi-protocol monitoring supporting HTTP/HTTPS, DNS, TCP, ICMP, and GraphQL endpoints
- Custom health check conditions with JSON path assertions and advanced logic operators
- Instant downtime alerts via Slack, Discord, PagerDuty, email, and 15+ other platforms
- Automated public status pages with real-time uptime data and incident reports
- SSL certificate expiration monitoring and validation

Coroot is an open-source APM and observability platform that provides zero-configuration monitoring and troubleshooting for microservices and distributed applications.
Key Features
- Zero-configuration automatic service discovery and dependency mapping
- Unified observability combining metrics, traces, and logs in a single platform
- Real-time application performance monitoring with intelligent alerting
- Distributed tracing for microservices without code instrumentation
- Interactive service topology visualization and dependency graphs

Open source cloud-native security data lake built for AWS that serves as a serverless alternative to traditional SIEM solutions like Splunk.
Key Features
- Serverless security data lake that normalizes unstructured logs into structured real-time format
- Out-of-the-box integration with 50+ security log sources with extensibility for custom sources
- Detection-as-Code using Python with automatic Sigma detection import support
- Custom log transformation pipeline using VRL scripting for parsing and enrichment
- Vendor-neutral format using Apache Iceberg and ECS standards for full data ownership
