SigNoz

✓ Verified FOSSApache-2.0

Top open-source alternative to Sentry / Datadog APM

SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps.

Tech StackGo, React, ClickHouse, OpenTelemetry

Self-Host DifficultyMedium

License ModelApache-2.0

GitHub Repositorysignoz/signoz

Recommended VPS & Hardware Sizing

Estimated Hosting: $10 - $15/mo (e.g. Hetzner CPX21 or Linode)

Min RAM:2 GB

Rec RAM:4 GB

Compute:2 vCPU

Disk Space:25 GB SSD

SigNoz vs Sentry / Datadog APM Comparison Matrix

Evaluation Criteria	SigNoz (Open Source)	Sentry / Datadog APM (Proprietary)
Cost Predictability	Run on commodity storage without penalty	Uncapped Datadog / Sentry volume overage bills
Open Standards	Native OpenTelemetry instrumentation	Proprietary vendor agent lock-in

INTERACTIVE TCO MODELEstimated Rate: $53/user/mo

Financial Impact: Migrating from Sentry / Datadog APM to Self-Hosted SigNoz

Detailed Stack Calculator →

Active Team Members / Seats: 25 Users

5 Users (Early Startup)50 Users (Scaleup)200 Users (Enterprise Org)

Sentry / Datadog APM (Cloud SaaS)Per-Seat Tax

$15,900per year ($1,325/mo)

3-Year Spend:$47,700

* Excludes enterprise SSO add-ons & usage overages

SigNoz (Self-Hosted)Zero Per-Seat Fee

$120per year ($10/mo Linux VPS)

3-Year Compute:$360

* Commodity Hetzner / DigitalOcean compute instance

Cumulative 3-Year ROI+$47,340Net savings across 36 months (99% reduction)

Annual Free Cash:+$15,780/yr

Need C-Level Buy-In? Generate an instant ROI proposal memo to present to your CTO or CFO.

HEAD-TO-HEAD BATTLES // SIDE-BY-SIDE AUDIT

Compare SigNoz Head-to-Head

Custom Comparison Engine →

★ PRIMARY REPLACEMENTFOSS vs SaaS

SigNozvs

Sentry / Datadog APM

Comprehensive benchmark comparing SigNoz against proprietary Sentry / Datadog APM licensing and features.

View Full Battle Report→

MonitoringPEER BENCHMARK

Uptime Kumavs

Netdata

External Service Uptime Pings vs Realtime Host System Metrics

Inspect Comparison→

MonitoringPEER BENCHMARK

Grafanavs

Netdata

Custom Analytical Dashboard Builder vs Out-of-the-Box Server Telemetry

Inspect Comparison→

MonitoringPEER BENCHMARK

SigNozvs

Datadog

Native OpenTelemetry APM, Traces & Logs vs Datadog Host & Custom Metric Bills

Inspect Comparison→

MonitoringPEER BENCHMARK

Changedetection.iovs

Visualping

Unlimited Website Change Detection vs Visualping Quota Invoices

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MonitoringPEER BENCHMARK

OpenObservevs

Datadog

Rust & Object Storage Observability (140x Cheaper) vs Datadog Cloud Invoices

Inspect Comparison→

Core Capabilities & Features

✓OpenTelemetry Native Tracing & APM

✓Logs, Metrics & Traces in single UI

✓Exception Tracking & Error Root Cause

✓ClickHouse High-Performance Storage

Self-Host SigNoz with Docker Compose

Tweak configuration ports, secrets, and volumes live. Download or copy your ready-to-run container file:

1-Click Docker Compose Generator

Generate production-ready container definitions with customizable ports and volumes.

Select Open-Source Project:

SigNozApache-2.0

Open source APM, metrics, traces, and log aggregation powered by ClickHouse

Difficulty: Medium32,338 ⭐

Configure Parameters

SigNoz Web UI Port (UI_PORT)

docker-compose.signoz.yml

version: '3.8'

services:
  signoz-frontend:
    image: signoz/frontend:latest
    restart: unless-stopped
    ports:
      - "${UI_PORT:-3301}:3301"
    depends_on:
      - clickhouse

  clickhouse:
    image: clickhouse/clickhouse-server:24.1
    restart: unless-stopped
    volumes:
      - signoz_clickhouse:/var/lib/clickhouse

volumes:
  signoz_clickhouse:

Frequently Asked Questions: Self-Hosting SigNoz

How do I self-host SigNoz using Docker Compose?

You can deploy SigNoz (signoz/signoz) on any Linux server by copying the docker-compose.yml template on this page, configuring your desired host port and persistent volume directory, and running 'docker compose up -d'.

How does SigNoz compare to Sentry / Datadog APM?

SigNoz is an open-source, self-hosted alternative to Sentry / Datadog APM built with Go, React, ClickHouse, OpenTelemetry. Unlike Sentry / Datadog APM ($26 - $80+ / member / month + data ingestion spikes), SigNoz has zero per-user licensing fees and keeps 100% of your data on your own infrastructure.

What are the minimum VPS RAM and CPU requirements for SigNoz?

For production self-hosting (Medium difficulty tier), we recommend at least 4 GB RAM (minimum 2 GB), 2 vCPU, and 25 GB SSD storage, which typically costs $10 - $15/mo (e.g. Hetzner CPX21 or Linode).

Is SigNoz free for commercial business use under the Apache-2.0 license?

Yes. Distributed under the Apache-2.0 license, SigNoz can be self-hosted internally by businesses and engineering teams of any size without per-seat royalties.

README INTEGRATION // REPO EMBED

Embed Official SigNoz Badge in GitHub README

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