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Open Source Splunk Alternatives

A curated collection of the 8 best open source alternatives to Splunk.

The best open source alternative to Splunk is Grafana. If that doesn't suit you, we've compiled a ranked list of other open source Splunk alternatives to help you find a suitable replacement. Other interesting open source alternatives to Splunk are: Apache Superset, Redash, Signoz and Logstash.

Splunk alternatives are mainly Monitoring Tools but may also be Observability Tools or Business Intelligence Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Splunk.

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Grafana is a multi-platform open source analytics and interactive visualization web application that provides charts, graphs, and alerts for the web.

Screenshot of Grafana website

Grafana is a powerful and versatile open-source platform for data visualization and monitoring. It allows users to query, visualize, alert on, and understand metrics no matter where they are stored. Key features include:

  • Support for multiple data sources: Grafana can connect to various databases and time series data stores, including Prometheus, InfluxDB, Elasticsearch, and many more.

  • Customizable dashboards: Users can create rich, interactive dashboards with a wide range of visualization options, from simple line graphs to complex heatmaps.

  • Alerting system: Grafana includes a flexible alerting engine that can notify users when specific conditions are met in their data.

  • Plugin ecosystem: Extend Grafana's functionality with a wide range of community-contributed and official plugins.

  • User management and authentication: Grafana offers built-in user authentication and supports various external authentication providers.

  • Templating and variables: Create dynamic dashboards that adapt to different contexts and data sets.

Grafana is widely used in various industries for monitoring infrastructure, applications, and business metrics. It's known for its flexibility, ease of use, and ability to bring together data from multiple sources into a single, cohesive view.

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Open-source solution for fast, intuitive data exploration and visualization, supporting various databases and skill levels.

Screenshot of Apache Superset website

Apache Superset is a powerful, open-source data exploration and visualization platform designed for users of all skill levels. It offers a comprehensive suite of features that make it an ideal choice for modern data analysis and presentation:

  1. User-Friendly Interface: Superset provides both a no-code visualization builder and an advanced SQL IDE, catering to users with varying levels of technical expertise.

  2. Extensive Database Support: It integrates seamlessly with a wide range of SQL-based databases, including modern cloud-native solutions capable of handling petabyte-scale data.

  3. Lightweight and Scalable: Superset's architecture allows it to leverage existing data infrastructure without requiring additional ingestion layers, making it highly scalable and efficient.

  4. Rich Visualization Options: With over 40 pre-installed visualization types and a plug-in architecture for custom visualizations, Superset offers extensive options for data representation.

  5. Self-Serve Analytics: The platform includes features such as interactive dashboards, a chart builder, SQL Lab, and dataset management tools, enabling users to create and explore data insights independently.

  6. Advanced Features:

    • Data caching for faster load times
    • Jinja templating and dashboard filters for interactivity
    • CSS templates for brand customization
    • Semantic layer for SQL data transformations
    • Cross-filters and drill-down capabilities for deeper analysis
    • Virtual datasets for ad-hoc exploration
    • Feature flags for access to new functionalities
  7. Extensive Database Compatibility: Superset supports a vast array of databases, including PostgreSQL, BigQuery, Snowflake, MySQL, Amazon Redshift, Apache Druid, Databricks, and many more.

Apache Superset combines ease of use with powerful features, making it an excellent choice for organizations looking to democratize data analysis and visualization across their teams.

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Redash is an open-source data visualization and analytics platform that helps teams make sense of their data through SQL queries and interactive dashboards.

Screenshot of Redash website

Redash is a powerful, open-source data visualization and analytics platform designed to help teams connect, query, visualize, and share their data effectively. Here's what makes Redash stand out:

  1. Versatile Data Connectivity:

    • Supports a wide range of data sources, including SQL, NoSQL, Big Data, and APIs
    • Allows querying from multiple sources to answer complex questions
  2. Powerful Query Editor:

    • Intuitive SQL editor with schema browsing and click-to-insert functionality
    • Ability to create and reuse query snippets for efficiency
  3. Interactive Dashboards:

    • Drag-and-drop interface for creating customizable dashboards
    • Resize and arrange visualizations to suit your needs
    • Schedule automatic refreshes from data sources
  4. Collaboration and Sharing:

    • Share dashboards with team members or make them public
    • User management features for access control
  5. Visualizations and Alerts:

    • Create various types of visualizations to represent your data
    • Set up alerts to stay informed about important data changes
  6. Open-Source Advantage:

    • Customize and add features to suit your specific needs
    • No vendor lock-in
    • Active community for support and contributions
  7. API Access:

    • Integrate Redash with other tools and services using its API

Redash is trusted by data-driven companies to make sense of their information, enabling better decision-making and deeper understanding of their data. Whether you're a small startup or a large enterprise, Redash provides the tools you need to turn your data into actionable insights.

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Comprehensive monitoring and troubleshooting solution for microservices architectures, offering metrics, traces, and logs in a single pane.

Screenshot of Signoz website

Signoz is a powerful, open-source observability platform designed for modern, cloud-native applications. It provides a unified solution for monitoring, troubleshooting, and optimizing your microservices architecture.

Key benefits of Signoz include:

  1. All-in-One Observability: Combine metrics, traces, and logs in a single platform, eliminating the need for multiple tools and reducing context-switching.

  2. Cost-Effective: As an open-source solution, Signoz offers significant cost savings compared to proprietary alternatives, especially for high-volume data ingestion.

  3. Easy Setup: Get started quickly with a simple installation process and intuitive UI, making it accessible for teams of all sizes.

  4. Customizable Dashboards: Create tailored views of your system's performance with flexible, drag-and-drop dashboard builders.

  5. Distributed Tracing: Gain deep insights into request flows across your microservices, helping you identify bottlenecks and optimize performance.

  6. Anomaly Detection: Leverage built-in anomaly detection capabilities to proactively identify issues before they impact your users.

  7. Scalability: Designed to handle high-volume data ingestion, Signoz scales effortlessly with your growing infrastructure.

  8. Open Standards: Built on OpenTelemetry, ensuring compatibility with a wide range of technologies and future-proofing your observability stack.

By choosing Signoz, you're not just adopting a monitoring tool; you're embracing a comprehensive observability solution that grows with your needs and empowers your team to maintain high-performing, reliable applications.

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Logstash is a free and open server-side data processing pipeline that ingests data from multiple sources, transforms it, and sends it to your desired destination.

Screenshot of Logstash website

Logstash is a powerful data processing pipeline that allows you to collect, transform, and ship data from various sources to multiple destinations. Here are some key features and benefits:

  1. Versatile Input Support:

    • Ingest data from a wide range of sources, including logs, metrics, web applications, data stores, and AWS services.
    • Supports continuous, streaming data ingestion.
  2. Powerful Data Transformation:

    • Parse and structure unstructured data using grok patterns.
    • Derive additional information, such as geolocations from IP addresses.
    • Anonymize or exclude sensitive data for compliance and security.
    • Transform data into a common format for easier analysis.
  3. Flexible Output Options:

    • Send processed data to various destinations, with Elasticsearch being a primary output.
    • Route data to multiple outputs simultaneously for different use cases.
  4. Extensibility:

    • Pluggable framework with over 200 plugins available.
    • Easy-to-build custom plugins for specific needs.
  5. Reliability and Security:

    • Guarantees at-least-once delivery with persistent queues.
    • Dead letter queues for handling processing failures.
    • Ability to secure ingest pipelines.
  6. Monitoring and Management:

    • Built-in monitoring features for observing performance and availability.
    • Pipeline Viewer for understanding and optimizing data flows.
    • Centralized management through a user-friendly UI.
  7. Elastic Stack Integration:

    • Seamless integration with other Elastic Stack components like Elasticsearch and Kibana.
    • Pre-built modules for quick setup with popular data sources.

Logstash is an essential tool for organizations looking to centralize and process their data efficiently, making it ready for analysis and visualization in platforms like Elasticsearch and Kibana.

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Open source platform combining session replays, logs, traces, metrics, and errors for comprehensive production issue resolution

Screenshot of HyperDX website

HyperDX is an innovative open-source observability platform designed to help engineering teams resolve production issues quickly and efficiently. Here's what makes HyperDX stand out:

  1. Comprehensive Observability: HyperDX unifies session replays, logs, traces, metrics, and errors in one platform, providing a holistic view of your system's performance.

  2. Cost-Effective Solution: With pricing at $0.40 per GB, $0 per user, and $0 per host, HyperDX offers a budget-friendly alternative to expensive enterprise solutions like Datadog.

  3. Powerful Performance: Powered by Clickhouse, HyperDX enables searching through terabytes of events in seconds, ensuring rapid issue identification and resolution.

  4. Intuitive Search: The platform features a simple full-text search syntax, making it easy to find relevant logs and spans without learning complex query languages.

  5. Automatic Event Clustering: HyperDX automatically aggregates log patterns, condensing billions of events into distinct clusters for easier analysis.

  6. Correlated Session Replays: Automatically link frontend session replays with backend logs and traces, providing context for user-reported issues.

  7. Visualization Tools: An intuitive chart builder allows teams to graph and share logs, metrics, and traces, facilitating detailed analysis and collaboration.

  8. Easy Integration: HyperDX offers automatic instrumentation for various languages and platforms, with just a few lines of code required for setup.

  9. Vendor-Agnostic: Built on OpenTelemetry, HyperDX allows teams to instrument once without fear of vendor lock-in.

  10. Additional Features: The platform includes alerting capabilities, Intercom integration, live log tailing, native JSON parsing, and an agent-free installation option.

HyperDX is backed by Y Combinator and trusted by high-velocity engineering teams. It's an excellent choice for organizations looking to streamline their observability stack while keeping costs under control.

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Coroot simplifies system monitoring by providing metrics, logs, traces, and profiling with zero instrumentation, leveraging eBPF technology.

Screenshot of Coroot website

Coroot is an innovative open-source observability platform that revolutionizes how developers and operations teams monitor and troubleshoot their systems. Here's what makes Coroot stand out:

  1. Zero-instrumentation observability:

    • Utilizes eBPF technology to automatically gather metrics, logs, traces, and profiles without any code changes
    • Provides a comprehensive Service Map covering 100% of your system with no blind spots
    • Offers predefined inspections to audit each application without configuration
  2. Comprehensive monitoring features:

    • Application Health Summary for easy status overview of multiple services
    • Distributed tracing to explore outlier requests with a single click
    • Log pattern analysis with out-of-the-box event clustering
    • Continuous profiling to analyze CPU and memory usage down to specific code lines
    • AI-powered root cause analysis for quick anomaly explanations
  3. User-friendly interface:

    • Intuitive dashboards for visualizing system performance
    • One-click investigation of anomalies
    • Easy comparison of system behavior against baselines
  4. Built-in expertise:

    • Automatically identifies over 80% of issues
    • Sends concise alerts with relevant inspection results when SLOs are not met
    • Customizable inspections for specific applications or entire projects
  5. Deployment and cost monitoring:

    • Tracks every application rollout in Kubernetes clusters
    • Compares each release with the previous one to detect performance degradations
    • Provides cloud cost insights down to individual applications
  6. Open-source and cloud options:

    • Available as a free, open-source Community Edition
    • Coroot Cloud offering for those who prefer a managed solution

Coroot simplifies the complex task of system observability, making it accessible to teams of all sizes. By leveraging cutting-edge technologies and providing a user-friendly interface, Coroot enables faster debugging, better development practices, and improved system reliability.

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Uptrace is an OpenTelemetry-based platform that integrates traces, metrics, and logs to help monitor and optimize complex distributed systems.

Screenshot of Uptrace website

Uptrace is an open-source observability platform built on OpenTelemetry, designed to help developers and operations teams monitor, understand, and optimize complex distributed systems. It offers a comprehensive solution for application performance monitoring (APM) with integrated tracing, metrics, and logging capabilities.

Key features and benefits:

  1. All-in-one solution:

    • Integrates traces, metrics, and logs in a single platform
    • Eliminates the need for multiple monitoring tools
    • Supports data from OpenTelemetry, Prometheus, Vector, FluentBit, and CloudWatch
  2. Flexible deployment options:

    • Self-hosted: Free to use without limitations
    • Managed cloud service: For those who prefer a hands-off approach
    • On-premise installation available upon request
  3. Cost-effective and predictable pricing:

    • Pay only for ingested gigabytes and active timeseries
    • Set a budget to avoid unexpected costs
    • First month free with 1TB storage and 50,000 timeseries (no credit card required)
  4. OpenTelemetry integration:

    • Quick setup with minimal code changes
    • Supports multiple programming languages (Go, Python, Ruby, Node.js, .NET, Java, Erlang, Elixir, Rust, PHP)
    • Vendor-agnostic instrumentation for easy switching between providers
  5. Comprehensive monitoring dashboard:

    • Service graph showing relationships between components
    • RED metrics (Rate, Errors, Duration)
    • Latency percentiles (p50/p90/p99/max)
    • Most frequent logs and errors
    • Slowest requests identification
  6. Scalability:

    • Designed to work at any scale, from small applications to large distributed systems
  7. Incident response:

    • Helps teams identify and resolve issues quickly, often before customers notice

By offering a unified platform for observability, Uptrace simplifies the monitoring process and provides valuable insights into application performance, helping teams optimize their systems and respond to incidents more effectively.

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