Home/Datadog vs SigNoz
Datadog vs SigNoz: Open-Source Observability Platform Compared (2026)
Quick Verdict
SigNoz is the closest open-source equivalent to Datadog's all-in-one experience: unified metrics, traces, and logs in a single UI, built natively on OpenTelemetry. SigNoz Cloud pricing ($0.30/GB logs and traces, $0.10/million metric samples) is significantly cheaper than Datadog. The trade-off is ecosystem maturity: fewer integrations, smaller community, and less proven at enterprise scale. For teams that prioritize OpenTelemetry, vendor neutrality, and cost, SigNoz is a compelling choice.
Pricing Comparison
| Scale | Datadog | SigNoz Cloud | SigNoz Self-Hosted |
|---|---|---|---|
| 10 servers | $1,200-2,400 | $49-200 | $0 + infra |
| 50 servers | $5,500-15,000 | $200-600 | $0 + infra |
| 200 servers | $20,000-55,000 | $800-2,500 | $0 + infra |
The OpenTelemetry Advantage
SigNoz is built on OpenTelemetry from the ground up. There is no proprietary agent, no custom SDK, no vendor-specific instrumentation. You use standard OTel SDKs and the OTel Collector to send data to SigNoz. This is significant for three reasons:
- No custom metrics trap. Datadog charges $5 per 100 custom metrics. SigNoz has no custom metrics surcharge because OTel metrics are first-class citizens.
- Zero vendor lock-in. Your OTel instrumentation works with any compatible backend. Switch from SigNoz to Grafana Cloud or New Relic without changing application code.
- Community standard. OTel is the second most active CNCF project after Kubernetes. Investing in OTel instrumentation is investing in the industry standard, not a vendor's proprietary format.
Where SigNoz Wins
Unified UI for Metrics, Traces, and Logs
Unlike the Prometheus + Grafana stack (four separate tools), SigNoz provides a single cohesive UI for all three signals. Click from a metric spike to related traces to associated logs in one interface. This is the experience Datadog provides, but at a fraction of the cost.
Transparent Pricing
SigNoz Cloud: $49/mo base, $0.30/GB for logs and traces, $0.10 per million metric samples. No per-host fees, no custom metrics surcharge, no separate APM pricing. One page of pricing vs Datadog's multi-page pricing calculator. You can estimate your bill in 30 seconds.
Self-Hosted Option
SigNoz is fully open source. Deploy on your own infrastructure with Docker Compose or Kubernetes Helm chart. Keep all data within your network for compliance requirements. Datadog has no self-hosted option.
Where Datadog Wins
Ecosystem Maturity (700+ Integrations)
Datadog has 700+ pre-built integrations with dashboards and monitors. SigNoz has 50+ via OpenTelemetry receivers. For niche technologies, Datadog likely has a ready-made integration. With SigNoz, you may need to configure OTel Collector receivers manually or rely on community contributions.
Enterprise Support and Scale
Datadog has been serving enterprise customers since 2010 with dedicated account teams, SLAs, and proven scale. SigNoz was founded in 2021 and is growing rapidly but has a smaller support team and fewer reference customers at enterprise scale. For risk-averse enterprises, Datadog's track record provides confidence.
Broader Feature Set
Datadog extends into RUM, synthetic monitoring, security monitoring, CI visibility, database monitoring, and network performance monitoring. SigNoz focuses on the core observability trio (metrics, traces, logs). If you need those adjacent capabilities, Datadog provides them in one platform.
Maturity Considerations
| Dimension | SigNoz | Datadog |
|---|---|---|
| Founded | 2021 | 2010 |
| GitHub Stars | 20,000+ | N/A (proprietary) |
| Enterprise Customers | Growing (hundreds) | Thousands |
| Support SLAs | Enterprise plan | All paid plans |
| Documentation | Good | Excellent |
| Community | Active Slack + GitHub | Large forum + community |