Distributed Tracing
Honeycomb is an observability platform focused on high-cardinality analysis, distributed tracing, and faster debugging for complex production systems.
Tiered plans · Free plan
APM (Application Performance Monitoring)
Platforms that monitor application performance, trace requests across services, and identify bottlenecks and performance degradation.
Frontend Monitoring
HyperDX is an observability platform that combines logs, traces, sessions, and debugging workflows with a more modern developer experience than older monitoring suites.
Usage-based · Free plan
San Francisco, CA
Engineering Productivity
Parca is a continuous profiling platform that helps engineering teams understand runtime behavior, performance regressions, and production hotspots across modern systems.
Free plan
Error Tracking
Error and performance monitoring tool that surfaces exceptions in real-time with detailed backtraces and deploy tracking.
Tiered plans · Free plan
200811-50San Francisco, CA
Monitoring & Observability
Observability platform combining metrics, logs, traces, RUM, and synthetic monitoring for full-stack visibility.
Usage-based · Free plan
20071-50Brooklyn, NY
Monitoring & Observability
End-to-end performance monitoring platform specializing in digital workspace, VDI, and application monitoring.
Tiered plans · Free trial
200151-200Iselin, NJ
Developer Experience Platforms
SigNoz is an open-source APM and observability platform providing traces, metrics, and logs in a single pane of glass as a self-hosted alternative to Datadog and New Relic.
Usage-based · Free plan
20211-50San Francisco, California
Distributed Tracing
Observability platform from ServiceNow analyzing distributed system changes to help teams understand performance and incidents.
Paid
201551-200San Francisco, CA
Developer Experience Platforms
Polar Signals provides continuous profiling tools that help engineering teams identify performance bottlenecks and reduce compute costs in production environments.
Usage-based · Free trial
202111-50Remote
APM (Application Performance Monitoring)
Open-source ML model management platform with automated monitoring, profiling, and deployment orchestration.
Custom quote · Free plan
201611-50San Francisco, CA
Frontend Monitoring
Website speed monitoring tool tracking Core Web Vitals, Lighthouse scores, and request waterfalls with deployment annotations.
Free plan
20191-10London, UK
Performance Engineering
Performance profiler for Ruby on Rails applications that ranks endpoints by response time and agony for actionable tuning.
Usage-based · Free plan
20132-10Denver, CO
Real User Monitoring
Website performance and availability monitoring service from SolarWinds providing uptime checks and page speed analysis.
Tiered plans · Free trial
20071-50Remote
Developer Tools
PHP extension providing step debugging, stack traces, profiling, and code coverage analysis for PHP applications.
Free · Free plan
20021-10Remote
G
Network Monitoring
Cross-platform system monitoring tool written in Python providing a web-based and terminal interface for real-time system metrics.
Free · Free plan
20111-10Community Project
Error Tracking
Cloud-based error logging and uptime monitoring service designed specifically for .NET developers.
Tiered plans · Free plan
20131-10Aarhus, Denmark
Real User Monitoring
Full-stack cloud observability platform combining infrastructure monitoring, APM, log management, and real user monitoring.
Usage-based · Free trial
202211-50San Francisco, CA
Frontend Monitoring
Application monitoring for Ruby, Elixir, Node.js, and Python with performance metrics, error tracking, and custom dashboards.
Free plan
201211-50Amsterdam, Netherlands
Frontend Monitoring
Full-stack monitoring platform providing APM, real user monitoring, server monitoring, and log management in one dashboard.
Usage-based · Free plan
201411-50Chennai, India
A/B Testing
Bug reporting tool providing video, network, logs, and crash reports to help engineers fix bugs fast.
Tiered plans · Free plan
201511-50Palo Alto, CA
API Testing Platforms
API monitoring and performance platform delivering global testing, compliance evidence, and availability SLAs for critical APIs.
Tiered plans · Free plan
20111-50Boston, MA
Application Performance Monitoring
Application performance monitoring tool for developers providing real-time insights into Ruby, Python, PHP, and Node.js apps.
Tiered plans · Free plan
200911-50Denver, CO
Data Visualization
Open source continuous profiling platform helping find performance bottlenecks in code with flamegraph visualization.
Free plan
202111-50Remote
Distributed Tracing
IBM enterprise observability platform with automatic application discovery, tracing, and root cause analysis for complex systems.
Free trial
2015201-500Chicago, IL
Log Management
Centralized structured logging server for .NET and other platforms providing real-time search and analysis with SQL-like queries.
Tiered plans · Free plan
20131-10Brisbane, Australia
Cloud Cost Management
Cloud-native observability platform designed to tame monitoring data growth with control over cardinality and cost optimization.
Usage-based
2019201-500New York, NY
Real User Monitoring
Error, crash, and performance monitoring platform providing detailed diagnostics to quickly identify and resolve software issues.
Usage-based · Free trial
20131-50Wellington, New Zealand
Network Monitoring
Real-time performance monitoring for trading and enterprise IT
Custom quote
1997501-1,000London, UK
Application Performance Monitoring
Advanced system and process monitor for Linux providing detailed resource usage logging and historical performance analysis.
Free · Free plan
20051-10Community Project
Database Tools
Postgres performance analysis platform with automatic query optimization suggestions from execution plans.
Tiered plans · Free plan
20191-10London, UK