Free Observability tiers
62 free tiers, safest first. Each one shows the limits, whether it needs a card, and how fresh the data is.
Free tierWhat you get freeRiskCardFreshness
Datadog · Observability
Up to 5 hosts (Free plan) · 1-day metric retention (Free plan) · 14-day free trial of Pro/Enterprise features
Billing risk: None
No card
✓ 28 Sep 2026
New Relic · Observability
100 GB/month data ingest · Unlimited basic users, 1 full platform user · 500 synthetic checks/month
Billing risk: None
No card
✓ 28 Sep 2026
Sentry · Observability
5,000 errors/month · 5 GB logs and metrics/month · 5M spans/month
Billing risk: None
No card
✓ 28 Sep 2026
UptimeRobot · Observability
50 monitors · 5-minute check interval
Billing risk: None
No card
✓ 1 Oct 2026
Better Stack · Observability
10 monitors and heartbeats · 1 status page · Slack and email alerts
Billing risk: None
No card
✓ 28 Sep 2026
Bugsnag · Observability
7,500 events/month · 1,000,000 spans/month · 7-day data retention
Billing risk: None
No card
✓ 28 Sep 2026
Checkly · Observability
10 Uptime Monitors · 10,000 API check runs/month · 1,000 browser check runs/month
Billing risk: None
No card
✓ 28 Sep 2026
Rollbar · Observability
5,000 error occurrences/month · 1,000 session replays/month · Unlimited users and projects
Billing risk: None
No card
✓ 28 Sep 2026
Honeycomb · Observability
20 million events per month · 100 million metrics data points per month · 2 triggers
Billing risk: None
No card
✓ 1 Oct 2026
Healthchecks.io · Observability
20 monitored jobs · 100 log entries per job
Billing risk: None
No card
✓ 1 Oct 2026
Arize AI · Observability
25,000 trace spans/month · 1GB ingestion/month · 10 data-quality issues/month
Billing risk: None
No card
✓ 28 Sep 2026
Axiom · Observability
500GB/month data loading compute · 10 GB-hours/month query compute · 25GB storage
Billing risk: None
No card
✓ 28 Sep 2026
Bencher · Observability
Unlimited public projects · No private projects on Free · 65,535 metrics/day rate limit
Billing risk: None
No card
✓ 28 Sep 2026
Better Stack · Observability
10 monitors and heartbeats, 1 status page · 100,000 exceptions per month (error tracking) · 3 GB logs and 3 GB traces, retained 3 days
Billing risk: None
No card
✓ 28 Sep 2026
Bugfender · Observability
100,000 log lines/day · 2,000 devices · 24-hour log retention
Billing risk: None
No card
✓ 28 Sep 2026
Deadmanssnitch · Observability
1 snitch (Lone Snitch, free plan) · Paid plans start at $5/month for 3 snitches
Billing risk: None
No card
✓ 28 Sep 2026
Embrace · Observability
Up to 1,000,000 sessions/year · Up to 5 users · 3 days of events data retention
Billing risk: None
No card
✓ 28 Sep 2026
Exceptionless · Observability
1 project / 1 user · 3,000 events/month · 3-day event retention
Billing risk: None
No card
✓ 28 Sep 2026
GlitchTip · Observability
1,000 events/month · Unlimited projects · Unlimited team members
Billing risk: None
No card
✓ 28 Sep 2026
Honeybadger · Observability
5,000 errors/month · 50 MB/day logging · 1 uptime monitor
Billing risk: None
No card
✓ 28 Sep 2026
Langfuse · Observability
50,000 units/month included · 30 days data access · 2 users
Billing risk: None
No card
✓ 28 Sep 2026
LangWatch · Observability
50,000 events/month · 14-day data access · 2 users
Billing risk: None
No card
✓ 28 Sep 2026
Logflare · Observability
12,960,000 events/month max · 3-day event retention · Unlimited team members and sources
Billing risk: None
No card
✓ 28 Sep 2026
Netdata · Observability
Up to 5 connected nodes · 1 active custom dashboard per room · 14-day trial of Business tier (all nodes, no limits)
Billing risk: None
No card
✓ 28 Sep 2026
OnlineOrNot.com · Observability
3 uptime monitors · 3-minute check interval · 1,000 browser check runs/month
Billing risk: None
No card
✓ 28 Sep 2026
Pingpong.one · Observability
Public status page on your own subdomain with free SSL · Unlimited incidents and scheduled maintenance · No team members on the free plan
Billing risk: None
No card
✓ 28 Sep 2026
StatusCake · Observability
10 uptime monitors · 5-minute check interval · 1 page speed, 1 domain, and 1 SSL monitor
Billing risk: None
No card
✓ 28 Sep 2026
StatusGator · Observability
3 monitors · 1 status board, 1 admin user · 10 notifications/month
Billing risk: None
No card
✓ 28 Sep 2026
Bugsink · Observability
15,000 events/month (hosted free plan) · Single user (hosted free plan) · Self-hosted version is free and open-source, unlimited users
Billing risk: None
No card
✓ 28 Sep 2026
FlareWarden · Observability
15 monitors · 5-minute check interval · 1 status page, 2 team members, 2 webhooks
Billing risk: None
No card
✓ 28 Sep 2026
Phare.io · Observability
100,000 monitoring events/month · 10 AI incident summaries/month · Unlimited projects, team members, and alerts
Billing risk: None
No card
✓ 28 Sep 2026
Pocket Alert · Observability
50 push notifications/day · 1 device · 1 application
Billing risk: None
No card
✓ 28 Sep 2026
UptimeObserver.com · Observability
20 monitors · 5-minute check interval · 1 email alert recipient
Billing risk: None
No card
✓ 28 Sep 2026
MonitorMonk · Observability
Up to 2 dashboards · Up to 10 websites · SSL, keyword, and HTTP status checks
Billing risk: None
No card
✓ 28 Sep 2026
Pagecrawl.io · Observability
6 monitored pages · Up to 220 checks/month · Check frequency up to every 60 minutes
Billing risk: None
No card
✓ 28 Sep 2026
Pingmeter.com · Observability
5 uptime monitors · 10-minute check interval · 14-day data history
Billing risk: None
No card
✓ 28 Sep 2026
Pulsetic · Observability
Up to 10 monitors (websites/heartbeats/domains) · 5-minute check interval, 3 monitoring regions · 3 status pages
Billing risk: None
No card
✓ 28 Sep 2026
StatusPile · Observability
Free to use · More than 30 providers · Open source, can be forked
Billing risk: None
No card
✓ 1 Oct 2026
Uptimetoolbox.com · Observability
5 monitors · 3-minute check interval · 7-day hi-res data retention
Billing risk: None
No card
✓ 28 Sep 2026
Wachete · Observability
No credit card required to start · Up to 12 months of change history with charts and spreadsheet export · Alerts by email, phone, or chat (Slack, Teams, Discord, Telegram)
Billing risk: None
No card
✓ 28 Sep 2026
Websitepulse · Observability
Manual usage only · No automated or scheduled checks · Limited to web-based tools
Billing risk: None
No card
✓ 28 Sep 2026
Xitoring · Observability
20 uptime monitors · 1-minute check interval · Email alerts included
Billing risk: None
No card
✓ 28 Sep 2026
Instatus · Observability
15 monitors · 2-minute checks · Status page included
Billing risk: None
No card
✓ 1 Oct 2026
LogZab · Observability
Up to 5 apps · 1,000 audit log entries/month · 1 month retention
Billing risk: None
No card
✓ 28 Sep 2026
Dotcom-Monitor · Observability
Free script recording and local playback (EveryStep Web Recorder) · Cloud monitoring plans start at $38.99/month
Billing risk: None
No card
✓ 28 Sep 2026
Servervana · Observability
Advanced uptime monitoring for up to 10 URLs · Full DNS monitoring for 1 hostname · 1 status page
Billing risk: None
No card
✓ 28 Sep 2026
openstatus · Observability
1 monitor · 1 status page with 3 components · 10-minute minimum check interval
Billing risk: None
No card
✓ 1 Oct 2026
SyAgent · Observability
25 servers per user · 25 uptime monitors per user · Metrics retained 7 days
Billing risk: None
No card
✓ 28 Sep 2026
Grafana · Observability
10,000 active series for metrics · 50GB logs ingested/month · 50GB traces ingested/month
Billing risk: Low
No card
✓ 28 Sep 2026
Elmah.io · Observability
21-day free trial, no credit card required · Cheapest paid plan (Small Business): $26/month, 10,000 messages/month, 30-day retention · Free subscriptions available to open source projects and Microsoft MVPs who apply
Billing risk: Low
No card
✓ 28 Sep 2026
Inspector.dev · Observability
30,000 transactions/month · Unlimited events · Unlimited hosts and apps
Billing risk: Low
No card
✓ 28 Sep 2026
OpenObserve · Observability
No enforced limits on logs, metrics, or traces (self-hosted, AGPL-3.0) · Self-hosted Enterprise edition free up to 50 GB/day ingestion
Billing risk: None
No card
✓ 28 Sep 2026
Middleware.io · Observability
100 GB data volume (metrics, logs, traces) · 2 million OpsAI tokens · 1,000 RUM sessions, 20,000 synthetic checks
Billing risk: Low
No card
✓ 28 Sep 2026
Pingbreak.com · Observability
Unlimited monitors · Checks every 60 seconds · Alerts via Twitter DM, Slack, Discord, Mattermost, email, or webhook
Billing risk: None
No card
✓ 28 Sep 2026
LangChain · Observability
1 seat · 5,000 base traces per month · Community support
Billing risk: Low
No card
✓ 1 Oct 2026
Helicone · Observability
10,000 requests · 1 GB storage · 1 seat, 1 organization
Billing risk: Low
No card
✓ 1 Oct 2026
Memfault · Observability
No charge for up to 10 development devices · Pay-as-you-go billing beyond 10 devices
Billing risk: Medium
No card
✓ 28 Sep 2026
CatchJS · Observability
14-day free trial on any plan · Development plan (trial): 1,000 logged errors/month · Free subscription available for open source projects (by application)
Billing risk: Medium
Card
✓ 28 Sep 2026
AWS · Observability
10 custom/detailed monitoring metrics · 5GB log data (ingestion, archive, and Logs Insights scans) · 3 dashboards with up to 50 metrics each
Billing risk: Medium
Card
✓ 28 Sep 2026
Azure · Observability
5 GB log data ingestion/month · 31 days log retention · Unlimited platform metrics ingestion
Billing risk: Medium
Card
✓ 28 Sep 2026