Real-time monitoring for systems and applications
- Stars
- 81.1k
- Growth
- +443
- Launched
- Jun 2013
GPL-3.0updated today
R.I.P.Open-source alternatives to Datadog
28 projects replace Datadog, the observability platform. 27 shipped code in the last 30 days.
Datadog bills per host, per GB of logs, per custom metric and per indexed span, and the invoice is famously hard to predict. One noisy service or a high-cardinality tag can multiply costs overnight. Teams also want telemetry kept in their own storage for retention and compliance.
Grafana with Prometheus and Loki is the classic stack: dashboards, metrics and logs as separate parts you assemble. SigNoz and OpenObserve bundle traces, metrics and logs into one app built around OpenTelemetry. Netdata gives per-second system metrics with almost no setup. Sentry covers error tracking, which Datadog sells as a separate product.
28 open-source alternatives
Most-starred first. Stars, growth and activity are live from GitHub.
Unified observability for metrics, logs, traces, and more
- Stars
- 77.4k
- Growth
- +578
- Launched
- Dec 2013
AGPL-3.0updated today
Open source metrics collection, storage, and alerting
- Stars
- 66.7k
- Growth
- +523
- Launched
- Nov 2012
Apache-2.0updated today
Real-time error tracking and performance monitoring
- Stars
- 45.6k
- Growth
- +799
- Launched
- Aug 2010
Custom licenseupdated today
Open-source observability platform for cloud-native apps
- Stars
- 32.4k
- Growth
- +244
- Launched
- Jan 2021
Custom licenseupdated today
Cost-effective log aggregation that indexes labels, not full text
- Stars
- 29k
- Growth
- +128
- Launched
- Apr 2018
AGPL-3.0updated today
Distributed tracing, metrics, logs, and GenAI monitoring in one
- Stars
- 25k
- Growth
- +14
- Launched
- Nov 2015
Apache-2.0updated today
Collect, transform, and route logs and metrics in one tool
- Stars
- 22.7k
- Growth
- +137
- Launched
- Aug 2018
MPL-2.0updated today
Petabyte-scale observability, without the massive bill.
- Stars
- 22.4k
- Growth
- +395
- Launched
- Feb 2023
AGPL-3.0updated today
High-performance time series database for metrics and logs
- Stars
- 17.9k
- Growth
- +139
- Launched
- Sep 2018
Apache-2.0updated today
Centralize, transform, and stash your data
- Stars
- 15k
- Growth
- +21
- Launched
- Nov 2010
Custom licenseupdated today
Full-stack observability without the enterprise price tag
- Stars
- 10k
- Growth
- +55
- Launched
- Sep 2023
MITupdated today
Real-time observability for modern web applications
- Stars
- 9.4k
- Growth
- +8
- Launched
- Aug 2020
Custom licenseupdated 19d ago
Comprehensive monitoring and incident management platform
- Stars
- 7.8k
- Growth
- +115
- Launched
- Jun 2021
Custom licenseupdated today
Monitor LLM performance with open-source observability
- Stars
- 7.5k
- Growth
- +60
- Launched
- Sep 2023
Apache-2.0updated 1d ago
Unified observability database for metrics, logs, and traces
- Stars
- 6.8k
- Growth
- +61
- Launched
- Apr 2022
Apache-2.0updated today
Enterprise monitoring for networks, apps, and infrastructure
- Stars
- 6.5k
- Growth
- +94
- Launched
- Feb 2014
AGPL-3.0updated today
Build reliable AI apps with comprehensive observability
- Stars
- 6.2k
- Growth
- +61
- Launched
- Jan 2023
Apache-2.0updated today
Deploy a professional status page in minutes, no coding required
- Stars
- 5.2k
- Growth
- +40
- Launched
- Dec 2023
MITupdated today
Powerful observability made simple for developers
- Stars
- 4.5k
- Growth
- +36
- Launched
- Apr 2024
MITupdated today
Open source observability platform for modern applications
- Stars
- 4.3k
- Growth
- +16
- Launched
- Dec 2021
AGPL-3.0updated 12d ago
Website analytics, uptime monitoring, and server status in one
- Stars
- 3.1k
- Growth
- +16
- Launched
- Aug 2023
Apache-2.0updated 2d ago
Complete IT infrastructure monitoring made simple
- Stars
- 2.6k
- Growth
- +232
- Launched
- Feb 2019
GPL-2.0updated today
Open source monitoring for complex IT infrastructure
- Stars
- 2.2k
- Growth
- +3
- Launched
- Aug 2013
GPL-3.0updated today
Self-hosted error tracking for full control and scalability
- Stars
- 2.1k
- Growth
- +55
- Launched
- Aug 2024
Custom licenseupdated today
Complete infrastructure monitoring with 25+ years of expertise
- Stars
- 2.1k
- Growth
- +16
- Launched
- Jan 2014
GPL-2.0updated 2mo ago
OpenTelemetry observability with traces, logs, and metrics
- Stars
- 1.9k
- Growth
- +60
- Launched
- Feb 2026
Custom licenseupdated today
All-in-one observability with unlimited data ingestion
- Stars
- 1.7k
- Growth
- +7
- Launched
- Dec 2018
AGPL-3.0updated today
What you give up by leaving Datadog
The honest part. Free and open usually costs something else.
- Integrations by hand Datadog's integrations install with a click; open stacks need exporters, agents and config files.
- Many moving parts Running metrics, logs and traces at scale means operating several storage systems yourself.
- Correlation is rougher Jumping from a trace to its logs to the host is smoother in Datadog than in assembled stacks.
- On-call extras Incident management, synthetic tests and real user monitoring need separate tools or are missing.
