Compare 55 free monitoring tools, free tiers, and developer deals. Verified pricing for Sentry, Datadog, Grafana Cloud, BetterStack, Axiom and more.
What this name holds: Uptime checks, metrics, tracing and the general-purpose observability suites — including Sentry and BetterStack, which also do the three names beside this one.
3 other names here answer “how do I find out it is broken”, and each holds a different list: Error Tracking (15), Logging (14), Status Pages (6).
We track 55 monitoring services with free tiers. Sentry leads with 1 user. This category has seen some movement — 17 pricing changes recorded across vendors.
| Vendor | Tier | Description | Verified |
|---|---|---|---|
| Sentry | Developer | Developer tier: 1 user, 5K errors/month, 5M spans/month, 50 session replays, 5GB application logs, 1GB attachments | 2026-08-11 |
| Datadog | Free | Infrastructure monitoring free for up to 5 hosts with 1-day metric retention | 2026-08-12 |
| Grafana Cloud | Free | Superseded: As of 2026-09-02, grafana.com/pricing reads: Free tier includes access to all Grafana Cloud services with limited usage, 14-day retention, and community support. 10k metric series, 50 GB logs, and 50 GB traces are included. A $19/month platform fee is required for 10k active series, 50 GB ingested logs/traces, and 30 days retention. We are not publishing our stored Grafana Cloud terms beside it — our own pricing change record, discovered 2026-09-02, names them as the previous ones. Read what we recorded ↓ | 2026-08-14 |
| BetterStack | Free | Superseded: As of 2026-09-02, betterstack.com/pricing reads: Free for personal projects $0 per month Start for free 10 monitors & heartbeats, 1 status page Slack & e-mail alerts 100,000 exceptions per month 5,000 session replays 3 GB logs retained for 3 days 3 GB traces retained for 3 days 30 GB metrics 3 GB web events retained for 3 days. We are not publishing our stored BetterStack terms beside it — our own pricing change record, discovered 2026-09-02, names them as the previous ones. Read what we recorded ↓ | 2026-08-13 |
| Axiom | Personal | Observability platform — 500 GB ingest/month, 25 GB storage, 30-day retention, 2 datasets, 1 user, 10 GB-hrs/mo query compute, 256 fields/dataset, 3 monitors, Email/Discord notifiers only | 2026-08-31 |
| New Relic | Free | Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic checks, 8+ days retention | 2026-08-31 |
| UptimeRobot | Free | 50 uptime monitors, 5-minute check intervals, 3-month log retention, email alerts. Personal/non-commercial use only on free tier | 2026-08-19 |
| Pulsetic | Free | Uptime monitoring — 10 monitors (HTTP/heartbeat/API), 5-minute check interval, 3 regions, 3-month history, 3 status pages | 2026-09-06 |
| Healthchecks.io | Free | Cron job and scheduled task monitoring — 20 monitors, 100 log entries per job, email/webhook/Slack/Telegram alerts, API access. Also free for open-source projects (Business plan) | 2026-09-05 |
| Prometheus | Free OSS | Free OSS (Apache 2.0). CNCF graduated time-series monitoring and alerting. Pull-based metrics collection, PromQL query language, multi-dimensional data model | 2026-08-22 |
| Jaeger | Free OSS | Free OSS (Apache 2.0). CNCF graduated distributed tracing system. End-to-end request tracing, performance optimization, root cause analysis. OpenTelemetry compatible | 2026-08-26 |
| StatusCake | Free | Uptime monitoring — 10 monitors, 5-min intervals, 1 page speed monitor, 1 domain monitor, 1 SSL monitor, email alerts, basic integrations | 2026-08-13 |
| PagerDuty | Free | Incident management — 5 users, 1 on-call schedule, 1 escalation policy, 100 intl phone/SMS notifications/month, 700+ integrations, API access | 2026-09-06 |
| Cronitor | Hacker | Cron job and uptime monitoring — free Hacker plan: 5 monitors, 5-minute check frequency, email, Slack, and webhook alerts, 1 status page (50 subscribers), 12-month data retention, single user | 2026-08-18 |
| Sematext | Basic (Free) | Observability platform — Logs: 500 MB/day ingestion, 7-day retention. Monitoring: 3 hosts, 3 containers/host, 30-min data retention, 1 alert rule. Volume-based pricing, no per-host charges on paid plans | 2026-07-05 |
| Uptimia | Free | Website uptime monitoring — free plan: 1 website, 5-minute check interval, basic uptime monitoring, email alerts. No credit card required | 2026-08-22 |
| OnlineOrNot | Free | Uptime and status page monitoring — free plan: 3 monitors (uptime, keyword, heartbeat), 3-minute check interval, 2 team members, 1 status page, SSL monitoring, multi-location checks, email/Slack/Discord alerts | 2026-07-06 |
| Hyperping | Free | Uptime and status page monitoring — free plan: 20 monitors (HTTP, port, ping, keyword), 5-minute check interval, 1 basic status page with real-time updates and subscriber notifications, 1 seat, 1 server monitoring agent, email and webhook alerts | 2026-07-07 |
| incident.io | Basic | Incident management platform — free Basic plan: up to 5 users, Slack or Microsoft Teams native incident response, single-team on-call scheduling, 1 status page, essential incident automation | 2026-08-27 |
| AppSignal | Free | Application monitoring (APM, errors, logging) — free plan: 50,000 requests/month, 1 GB logging/month, 5-day data retention, unlimited apps and hosts. Extended free limits for OSS and humanitarian projects | 2026-08-27 |
| Middleware.io | Free | Full-stack observability platform — free forever plan: 100 GB/month data (APM, logs, infrastructure, traces, RUM, synthetics, database, serverless), 1,000 RUM sessions/month, 20,000 synthetic checks/month, 14-day data retention, unlimited users | 2026-07-05 |
| 360 Monitoring | Lite | Server and website monitoring (formerly Nixstats) — free Lite plan: 1 server monitor, 5 site monitors, 10-minute check interval, 24-hour data retention, email alerts | 2026-08-28 |
| StatusPile | Free | A status page of status pages. Could you track the status pages of your upstream providers? | 2026-07-07 |
| assertible.com | Free | Automated API testing and monitoring. Free plans for teams and individuals. | 2026-07-12 |
| bleemeo.com | Free | Free for 3 servers, 5 uptime monitors, unlimited users, unlimited dashboards, unlimited alerting rules. | 2026-07-11 |
| Core Web Vitals History | Free | Find Core Web Vitals history for a url or a website. | 2026-07-08 |
| deadmanssnitch.com | Free | Monitoring for cron jobs. One free snitch (monitor), more if you refer others to sign up | 2026-07-09 |
| downtimemonkey.com | Free | 60 uptime monitors, 5-minute interval. Email, Slack alerts. | 2026-07-09 |
| economize.cloud | Free | Economize helps demystify cloud infrastructure costs by organizing cloud resources to optimize and report the same. Free for up to $100,000 spent on cloud (AWS, Azure, GCP) every month. | 2026-07-12 |
| fivenines.io | Free | Superseded: As of 2026-08-28, fivenines.io reads: The page promotes a 14-day free trial and a paid plan starting at €19/month. It does not mention a permanently free tier for up to 5 servers. We are not publishing our stored fivenines.io terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-07-07 |
| incidenthub.cloud | Free | Cloud and SaaS status page aggregator — 5 monitors and 2 notification channels (Slack and Discord) are free forever. | 2026-07-12 |
| inspector.dev | Free | A complete Real-Time monitoring dashboard in less than one minute with a free forever tier. | 2026-07-11 |
| linkok.com | Free | Superseded: As of 2026-08-28, linkok.com reads: Free forever for small sites (up to 100 pages) with monthly scans and email reports. Paid tiers available for weekly and daily scans, ranging from $4/month to $400/month depending on the number of pages scanned. We are not publishing our stored linkok.com terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-07-12 |
| loader.io | Free | Free load testing tools with limitations | 2026-07-09 |
| MonitorMonk | Free | Minimalist uptime monitoring with beautiful status pages. The Forever Free plan offers HTTPS, Keyword, SSL and Response-time monitorming for 10 websites or api-endpoints, and provides 2 dashboards/status pages. | 2026-08-26 |
| netdata.cloud | Free | Netdata is an open-source tool to collect real-time metrics. It's a growing product and can also be found on GitHub! | 2026-07-08 |
| OntarioNet.ca CN Test | Free | Check if a website is blocked in China by the Great Firewall. It identifies DNS pollution by comparing DNS results and ASN information detected by servers in China versus servers in the United States. | 2026-07-10 |
| pagecrawl.io | Free | Monitor website changes, free for up to 6 monitors with 60-minute interval checks. | 2026-07-12 |
| pagertree.com | Free | Simple interface for alerting and on-call management. Free up to 5 users. | 2026-07-12 |
| phare.io | Free | Uptime Monitoring free for up to 100,000 events for unlimited projets and unlimited status pages. | 2026-07-13 |
| pingbreak.com | Free | Modern uptime monitoring service. Check unlimited URLs and get downtime notifications via Discord, Slack, or email. | 2026-07-12 |
| Pingmeter.com | Free | Superseded: As of 2026-08-28, pingmeter.com reads: Free account is limited to accounts with 1 category and less than 5 uptime monitors. It exclude pro features such as sms/voice notification, scheduling and recovery actions. We are not publishing our stored Pingmeter.com terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-07-12 |
| pingpong.one | Free | Advanced status page platform with monitoring. The free tier includes one public customizable status page with an SSL subdomain. Pro plan is offered to open-source projects and non-profits free of charge. | 2026-07-14 |
| robusta.dev | Free | Powerful Kubernetes monitoring based on Prometheus. Bring your own Prometheus or install the all-in-one bundle. The free tier includes up to 20 Kubernetes nodes. Alerts via Slack, Microsoft Teams, Discord, and more. Integrations with PagerDuty, OpsGenie, VictorOps, DataDog, and many other tools. | 2026-07-12 |
| Servervana | Free | Uptime monitoring with support for large projects and teams. Free tier: 1 HTTP monitor, 1 DNS monitor, and 1 status page. | 2026-07-15 |
| Simple Observability | Free | Superseded: As of 2026-08-28, simpleobservability.com reads: Pricing starts at $3/month. We are not publishing our stored Simple Observability terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-09-06 |
| sitesure.net | Free | Website and cron monitoring - 2 monitors free | 2026-07-10 |
| skylight.io | Free | Application performance monitoring — free for first 100,000 traces/month. | 2026-07-13 |
| statusgator.com | Free | Status page monitoring, 3 monitors free | 2026-07-10 |
| SweetUptime | Free | Server monitoring, uptime monitoring, DNS & domain monitoring. Monitor 10 server, 10 uptime, and 10 domain for free. | 2026-07-12 |
| syagent.com | Free | Free server monitoring service with alerts and metrics. Up to 25 servers and 25 uptime monitoring instances. | 2026-08-26 |
| UptimeObserver.com | Free | Get 20 uptime monitors with 5-minute intervals and a customizable status page—even for commercial use. Enjoy unlimited, real-time notifications via email and Telegram. No credit card needed to get started. | 2026-07-11 |
| uptimetoolbox.com | Free | Free monitoring for five websites, 3-minute intervals, public statuspage. | 2026-07-11 |
| Wachete | Free | monitor five pages, checks every 24 hours. | 2026-07-11 |
| Xitoring.com | Free | Superseded: As of 2026-08-28, xitoring.com reads: The page offers a 14-day free trial, and then paid plans starting at $4.99/mo for Uptime + SSL. We are not publishing our stored Xitoring.com terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-07-13 |
| Google Cloud Monitoring | Always Free | Always Free: all non-chargeable Google Cloud metrics, first 1M monitoring API calls/month. Dashboards, alerting, and uptime checks for GCP resources | 2026-08-18 |
| SigNoz | Free OSS | OpenTelemetry-native observability with logs, metrics and traces in one tool. The community edition is free to self-host. SigNoz Cloud starts at $49/month including $49 of usage credit, then $0.3/GB ingested for logs and traces (15-day retention) and $0.1 per million metric samples; eligible startups pay $19/month for the first 12 months. | 2026-08-27 |
| Elastic | Free OSS | The Elastic Stack — Elasticsearch, Kibana, ingest and basic security — self-managed at no cost on the Free and Open tier under the Elastic License and SSPL, with community support. Platinum (existing customers only) and Enterprise are custom-priced and add machine learning, cross-cluster replication, searchable snapshots and 24/7 support. Elastic Cloud Serverless and Hosted are billed separately by usage or resources. | 2026-08-27 |
| Grafana | Free OSS | Grafana OSS — the self-hosted dashboarding and alerting front end, free under AGPL-3.0-only with Apache-2.0 exceptions. Unifies 150+ data sources into one dashboard and supports observability-as-code. You set up, administer and maintain the installation yourself; Grafana Cloud is the hosted product and is priced separately. | 2026-08-27 |
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