Open Source Projects tagged "Observability"
A curated collection of the best open source projects tagged "Observability". Each listing includes a website screenshot along with a detailed review of its features.
Real-time monitoring for systems and applications
Stars
81,104Last commit
9 hours agoLicense
GPL-3.0
Powerful, efficient, and user-friendly monitoring solution for servers, containers, and applications with instant insights and alerts.
Open Source Alternative to:
Open source metrics collection, storage, and alerting
Stars
66,718Last commit
4 hours agoLicense
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 LLM engineering platform for AI-powered applications
Stars
Stars growing over the last 30 days36,266Last commit
5 hours agoLicense
MIT
Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.
Open Source Alternative to:
Open-source observability platform for cloud-native apps
Stars
32,427Last commit
5 hours agoLicense
MIT
Comprehensive monitoring and troubleshooting solution for microservices architectures, offering metrics, traces, and logs in a single pane.
Open Source Alternative to:
Cost-effective log aggregation that indexes labels, not full text
Stars
29,050Last commit
3 hours agoLicense
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:
Distributed tracing, metrics, logs, and GenAI monitoring in one
Stars
24,975Last commit
9 hours agoLicense
Apache-2.0
Open source observability platform covering distributed tracing, metrics, logs, profiling, and LLM cost tracking across 10+ languages with eBPF support on Kubernetes.
Open Source Alternative to:
Petabyte-scale observability, without the massive bill.
Stars
22,475Last commit
3 hours agoLicense
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:
Python-native workflow orchestration for data and ML teams
Stars
24,068Last commit
4 hours agoLicense
Apache-2.0
Orchestrate data pipelines, ML jobs, and agent workflows in plain Python with automatic retries, scheduling, and a unified UI for every run across your infrastructure.
Open Source Alternative to:
Collect, transform, and route logs and metrics in one tool
Stars
22,760Last commit
3 hours agoLicense
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:
High-performance time series database for metrics and logs
Stars
17,900Last commit
7 hours agoLicense
Apache-2.0
Time series database and monitoring platform compatible with Prometheus, handling billions of metrics with lower resource usage than most alternatives.
Open Source Alternative to:
Full-stack observability without the enterprise price tag
Stars
9,963Last commit
4 hours agoLicense
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:
Status page and uptime monitoring for growing teams
Stars
9,220Last commit
3 hours agoLicense
AGPL-3.0
Open-source status page and uptime monitor that tracks endpoints from 28 global regions, communicates incidents, and helps satisfy SOC 2 audit requirements.
Open Source Alternative to:
Real-time observability for modern web applications
Stars
9,384Last commit
3 days agoLicense
Apache-2.0
Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.
Open Source Alternative to:
Monitor LLM performance with open-source observability
Stars
7,503Last commit
5 days agoLicense
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
7,982Last commit
2 days agoLicense
Apache-2.0
Coroot simplifies system monitoring by providing metrics, logs, traces, and profiling with zero instrumentation, leveraging eBPF technology.
Open Source Alternative to:
Comprehensive monitoring and incident management platform
Stars
7,751Last commit
3 hours agoLicense
Apache-2.0
All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly
Open Source Alternative to:
Unified observability database for metrics, logs, and traces
Stars
6,760Last commit
5 hours agoLicense
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:
Enterprise monitoring for networks, apps, and infrastructure
Stars
6,498Last commit
5 hours agoLicense
AGPL-3.0
Monitors networks, servers, cloud services, IoT, and OT environments with no per-device licensing fees, available self-hosted or as a managed SaaS platform.
Open Source Alternative to:
Build, automate, and improve AI agents with your team
Stars
4,856Last commit
3 hours agoLicense
MIT
Open-source workspace for building and running AI agents: chat-driven development, scheduling, human-in-the-loop approvals, versioning, and tracing. Self-host or use the cloud.
Open Source Alternative to:
Deploy a professional status page in minutes, no coding required
Stars
5,213Last commit
2 days agoLicense
MIT
Free, open-source status page and uptime monitor with Docker deployment. Track 11 service types, manage incidents, schedule maintenance, and notify subscribers instantly.
Open Source Alternative to:
Simulation-based testing and evaluation for AI agents
Stars
4,990Last commit
4 hours agoLicense
Apache-2.0
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.
Open Source Alternative to:
Powerful observability made simple for developers
Stars
4,520Last commit
3 hours agoLicense
MIT
Logfire offers intuitive observability tools for Python applications, combining logs, profiling, and telemetry in one platform.
Open Source Alternative to:
Git-native feature management for developers
Stars
4,926Last commit
5 hours agoLicense
GPL-3.0
A feature flag platform that integrates with Git workflows, enabling developers to manage features directly in their codebase.
Open Source Alternative to:
Open source observability platform for modern applications
Stars
4,306Last commit
2 days agoLicense
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:
AI-powered platform for engineering LLM products
Stars
Stars growing over the last 30 days3,434Last commit
4 hours agoLicense
Apache-2.0
Laminar is an open-source platform that helps collect, understand, and utilize data for building high-quality LLM applications.
Open Source Alternative to:
Monitor, debug, and scale LLM applications with ease
Stars
Stars growing over the last 30 days2,874Last commit
1 day agoLicense
Apache-2.0
Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.
Open Source Alternative to:
Real-time stream processing made simple and affordable
Stars
2,273Last commit
12 days agoLicense
Apache-2.0
Timeplus is a lightweight, powerful, and cost-efficient stream processing platform for real-time analytics, deployed as a single binary.
Unified API for all LLM providers with analytics
Stars
1,705Last commit
4 hours agoLicense
MIT
Route, manage, and analyze LLM requests across multiple providers with one API. Compatible with OpenAI format, includes usage analytics and performance monitoring.
Open Source Alternative to:
All-in-one observability with unlimited data ingestion
Stars
1,715Last commit
4 hours agoLicense
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:
Monitors websites and APIs, pages on-call, and publishes a status page
Stars
48Last commit
10 hours agoLicense
AGPL-3.0
Hosted uptime monitoring with multi-region checks, eight monitor types, on-call rotations, escalation policies, and public status pages for SaaS teams and agencies.
Open Source Alternative to:
LLM observability: cost, latency, and traces in one place
Stars
13Last commit
5 days agoLicense
MIT
Drop-in observability platform for OpenAI, Anthropic, and Gemini that logs every request, tracks costs, traces agent workflows, and flags anomalies and PII.
Open Source Alternative to:
Bright Data – Web data for AI agents and apps. Built-in unblocking, proxies, and ready-made APIs.
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