Free-tier monitoring platforms

Respan

Respan is an LLM engineering platform for tracing, evaluating, optimizing, deploying, and monitoring AI agent traffic through a gateway and observability dashboard. It logs requests, traces spans, tra...

Shake

Shake is a bug and crash reporting platform for mobile apps and websites. It provides SDKs for iOS, Android, React Native, Flutter, and web, and automatically attaches data such as device model, HTTP ...

Grafana Cloud

Grafana Cloud is a managed observability platform that combines metrics, logs, traces, profiles, k6 performance tests, dashboards, and alerting in a single hosted service. It supports OpenTelemetry an...

APItoolkit

APItoolkit is an API observability and monitoring platform that collects logs, traces, metrics, request payloads, and events to help developers find breaking changes, errors, and performance regressions in production.

Checkly

Checkly is a monitoring platform for uptime checks, API checks, browser checks, Playwright check suites, status pages, alerting, dashboards, and trace-based root cause analysis. It supports code-first...

Skylight

Skylight is a smart profiler for Ruby and Rails applications. It collects performance traces from web requests and background jobs, then turns them into endpoint-level views, trends, and deploy comparisons.

Axiom

Axiom is an event data platform for logs, traces, metrics, and events. It ingests data through OpenTelemetry, Events API, SDKs, and other connectors, then provides query, monitoring, dashboarding, and retention features in a hosted cloud service.

Inspector

Inspector is a PHP application monitoring tool that traces transactions, events, exceptions, slow queries, and external calls from code instrumentation rather than server-side agents. It supports Lara...

highlight.io

Highlight.io is an open source, full-stack monitoring platform for modern web applications. It brings together session replay, error monitoring, logging, traces, and dashboards in a single product so engineering teams can understand issues across the entire stack.

AWS X-Ray

AWS X-Ray is a distributed tracing and application observability service that helps teams analyze requests as they move through microservices and other components. It provides trace collection, servic...

Exceptionless

Exceptionless is a .NET exception reporting and event logging service for ASP.NET, Web API, WebForms, WPF, Console, and MVC applications. It collects unhandled exceptions and custom events through a c...

Sentry

Sentry is an application monitoring platform that helps development teams detect, diagnose, and resolve software issues across the full application lifecycle. It combines error monitoring, performance...

Smart Grow Logs

Smart Grow Logs is a centralized logging service for Android, iOS, Flutter, Web, Node.js, Cloudflare Workers, Hono, macOS, tvOS, Windows, and Go applications. It provides SDKs and plugins for sending ...

GlitchTip is an open source error tracking service for applications and websites. It collects exceptions, log messages, Content Security Policy violations, performance transactions, uptime checks, and...

Cronitor

Cronitor is a monitoring platform built for developers and operations teams that need reliable visibility into jobs, websites, APIs, and infrastructure events. It combines cron job monitoring, uptime checks, heartbeat tracking, status pages, and real user monitoring in a single product.

Logflare

Logflare is a hosted logging and log analytics service for Cloudflare, Vercel, Elixir, and JavaScript applications. It ingests events from integrations such as Cloudflare Workers, OpenTelemetry, Elixi...

Rollbar

Rollbar is an error monitoring and tracking service for software teams. It collects application errors from server, client, and mobile SDKs, groups similar issues, and attaches stack traces, telemetry...

Xitoring

Xitoring is a monitoring service for uptime checks, server metrics, SSL certificates, API endpoints, heartbeat jobs, and cron jobs. It uses an agent called Xitogent for Linux and Windows server monitoring, plus global check nodes for external uptime and synthetic checks.

BugSnag

BugSnag is an application monitoring service for mobile, web, desktop, and server apps. It captures unhandled and handled errors, groups them by root cause, and provides diagnostic context such as sta...

Arize

Arize is an AI and agent engineering platform that combines observability, tracing, evaluation, prompt management, and monitoring for production AI systems. The product includes Arize AX for generativ...