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Open Source Alternatives to Popular Software

Over 1 million users replaced their proprietary tools with open source software. Discover the best alternatives and join the movement.

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Windshift
c15t
Docmost
Openlane
Sent
InfluxDB
Capture
Postiz
CodeRabbit
Self-serve data exploration and dashboard builder
  • Stars


    75,000
  • Last commit


    11 hours ago
  • License


    Apache-2.0
Connect any SQL database, build charts with drag-and-drop or raw SQL, and publish interactive dashboards without writing application code.

Open Source Alternative to:

Unified observability for metrics, logs, traces, and more
  • Stars


    77,035
  • Last commit


    9 hours ago
  • License


    AGPL-3.0
Grafana unifies metrics, logs, traces, profiles, and business data into one OpenTelemetry-native platform with AI-assisted root cause analysis and adaptive cost controls.

Open Source Alternative to:

Open source metrics collection, storage, and alerting
  • Stars


    66,342
  • Last commit


    13 hours ago
  • License


    Apache-2.0
Pull-based monitoring system with a multi-dimensional data model, PromQL query language, built-in alerting, and a time series database built for cloud native environments.

Open Source Alternative to:

Open-source observability platform for cloud-native apps
  • Stars


    32,258
  • Last commit


    9 hours ago
  • License


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

Open Source Alternative to:

Advanced vulnerability detection and management platform
  • Stars


    31,660
  • Last commit


    14 hours ago
  • License


    MIT
Monitor infrastructure for exploitable vulnerabilities with real-time detection, automated workflows, and zero false positives.

Open Source Alternative to:

Cost-effective log aggregation that indexes labels, not full text
  • Stars


    28,981
  • Last commit


    10 hours ago
  • License


    AGPL-3.0
Horizontally scalable, multi-tenant log aggregation system that stores and queries logs using label-based indexing instead of full-text indexing, keeping storage costs low.

Open Source Alternative to:

Connect, query, visualize, and share your data
  • Stars


    28,829
  • Last commit


    1 day ago
  • License


    BSD-2-Clause
Redash is an open-source data visualization and analytics platform that helps teams make sense of their data through SQL queries and interactive dashboards.

Open Source Alternative to:

Petabyte-scale observability, without the massive bill.
  • Stars


    22,227
  • Last commit


    9 hours ago
  • License


    AGPL-3.0
Monitor logs, metrics, and traces with an open-source observability platform. Achieve petabyte scale with 140x lower storage costs and high performance.

Open Source Alternative to:

Collect, transform, and route logs and metrics in one tool
  • Stars


    22,656
  • Last commit


    11 hours ago
  • License


    MPL-2.0
Rust-built observability pipeline tool that collects, transforms, and routes logs and metrics across 47 sources and 62 sinks with no runtime dependencies.

Open Source Alternative to:

Centralize, transform, and stash your data
  • Stars


    14,954
  • Last commit


    9 hours ago
  • License


    Unknown
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.

Open Source Alternative to:

Full-stack observability without the enterprise price tag
  • Stars


    9,923
  • Last commit


    9 hours ago
  • License


    MIT
Open source observability platform unifying session replays, logs, traces, metrics and errors. Fast search, automatic clustering, $0.40/GB pricing.

Open Source Alternative to:

Monitor LLM performance with open-source observability
  • Stars


    7,464
  • Last commit


    3 days ago
  • License


    Apache-2.0
Open-source observability platform for LLMs using OpenTelemetry. Monitor performance, track costs, and debug AI applications with just 2 lines of code.

Open Source Alternative to:

Full-stack observability without code changes
  • Stars


    7,949
  • Last commit


    1 day ago
  • License


    Apache-2.0
Coroot simplifies system monitoring by providing metrics, logs, traces, and profiling with zero instrumentation, leveraging eBPF technology.

Open Source Alternative to:

Unified observability database for metrics, logs, and traces
  • Stars


    6,727
  • Last commit


    21 hours ago
  • License


    Apache-2.0
Cloud-native observability database unifying metrics, logs, and traces with sub-second queries, 50x cost reduction, and seamless OpenTelemetry integration.

Open Source Alternative to:

Build reliable AI apps with comprehensive observability
  • Stars


    6,192
  • Last commit


    15 days ago
  • License


    Apache-2.0
Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.

Open Source Alternative to:

Distributed OLAP database for real-time analytics at scale
  • Stars


    6,146
  • Last commit


    11 hours ago
  • License


    Apache-2.0
Sub-second SQL queries on fresh streaming data at petabyte scale, built for high-concurrency user-facing apps and AI agent backends.

Open Source Alternative to:

Powerful observability made simple for developers
  • Stars


    4,500
  • Last commit


    15 hours ago
  • License


    MIT
Logfire offers intuitive observability tools for Python applications, combining logs, profiling, and telemetry in one platform.

Open Source Alternative to:

Open source security automation platform for builders
  • Stars


    3,823
  • Last commit


    9 hours ago
  • License


    AGPL-3.0
Tracecat is a scalable, self-hostable platform for automating security workflows and playbooks without limits.

Open Source Alternative to:

Open source observability platform for modern applications
  • Stars


    4,297
  • Last commit


    2 months ago
  • License


    AGPL-3.0
Uptrace is an OpenTelemetry-based platform that integrates traces, metrics, and logs to help monitor and optimize complex distributed systems.

Open Source Alternative to:

Complete IT infrastructure monitoring made simple
  • Stars


    2,381
  • Last commit


    10 hours ago
  • License


    GPL-2.0
Monitor your entire IT infrastructure with 2,000+ plugins, automated discovery, and scalable architecture. Open source and enterprise solutions available.

Open Source Alternative to:

OpenTelemetry observability with traces, logs, and metrics
  • Stars


    1,799
  • Last commit


    10 hours ago
  • License


    Unknown
Observability platform built on OpenTelemetry and ClickHouse. Collect, visualize, and query distributed traces, logs, and metrics, with an MCP server for AI agent diagnostics.

Open Source Alternative to:

All-in-one observability with unlimited data ingestion
  • Stars


    1,709
  • Last commit


    9 hours ago
  • License


    AGPL-3.0
Unified platform for logs, metrics, traces and profiles with native compatibility for popular tools like OpenTelemetry, Prometheus, and Loki. No data silos, no usage limits.

Open Source Alternative to:

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