Compare 24 free alternatives to inspector.dev for Monitoring. Every one of their free tier limits side by side, with the read and catalogue dates we hold.

AgentDeals › Alternatives › inspector.dev

Best inspector.dev Alternatives with Free Tiers (2026)

24 free alternatives in Monitoring. Sorted by pricing stability.

Current inspector.dev Situation

Risk Level: source unconfirmed
Why: The page we cite for inspector.dev states no amount, tier or rate we can read when we last looked, on 2026-10-11. We are not publishing a stability judgement for it until that is fixed.
Category: Monitoring
Pricing Page: www.inspector.dev

All Free Alternatives (24)

14 of these carry no recorded demerit and are indistinguishable under every signal we hold; their order rotates daily. 10 are demoted with the reason named, and 0 are listed last because they are not generally available or are not a free offer. How we rank.

Left out of this list: UptimeRobot (shares no subtype with this product), Pulsetic (shares no subtype with this product), Healthchecks.io (shares no subtype with this product), StatusCake (shares no subtype with this product), PagerDuty (shares no subtype with this product), Cronitor (shares no subtype with this product), Uptimia (shares no subtype with this product), OnlineOrNot (shares no subtype with this product), incident.io (shares no subtype with this product), StatusPile (shares no subtype with this product), assertible.com (shares no subtype with this product), Core Web Vitals History (none of this category's subtypes apply), deadmanssnitch.com (shares no subtype with this product), downtimemonkey.com (shares no subtype with this product), economize.cloud (none of this category's subtypes apply), incidenthub.cloud (shares no subtype with this product), linkok.com (none of this category's subtypes apply), loader.io (none of this category's subtypes apply), MonitorMonk (shares no subtype with this product), OntarioNet.ca CN Test (none of this category's subtypes apply), pagecrawl.io (shares no subtype with this product), pagertree.com (shares no subtype with this product), phare.io (shares no subtype with this product), pingbreak.com (shares no subtype with this product), Pingmeter.com (shares no subtype with this product), pingpong.one (shares no subtype with this product), robusta.dev (none of this category's subtypes apply), Servervana (shares no subtype with this product), sitesure.net (shares no subtype with this product), statusgator.com (shares no subtype with this product), SweetUptime (shares no subtype with this product), UptimeObserver.com (shares no subtype with this product), uptimetoolbox.com (shares no subtype with this product), Wachete (shares no subtype with this product). Each is still listed in its category, with the vendor's own words we read that from on its page. How we decide this.

Grafana stable
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.
Monitoring Read 2026-10-28 · catalogue date 2026-08-27
Profile
Axiom stable
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
Monitoring Read and confirmed 2026-10-22
Profile
Grafana Cloud stable
Free
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.
Monitoring Read 2026-11-03 · catalogue date 2026-08-14
Profile
SigNoz stable
Free OSS
OpenTelemetry-native observability with logs, metrics and traces in one tool. The community edition is free to self-host.
Monitoring Read 2026-10-22 · catalogue date 2026-08-27
Profile
BetterStack stable
Free
10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1 responder
Monitoring Read and confirmed 2026-10-30
Profile
360 Monitoring stable
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
Monitoring Read and confirmed 2026-10-26
Profile
Elastic stable
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…
Monitoring Read and confirmed 2026-11-05
Profile
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
Monitoring Read 2026-10-25 · catalogue date 2026-08-18
Profile
syagent.com stable
Free
Free server monitoring service with alerts and metrics. Up to 25 servers and 25 uptime monitoring instances.
Monitoring Read and confirmed 2026-11-04
Profile
New Relic stable
Free
Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic checks, 8+ days retention
Monitoring Read and confirmed 2026-10-24
Profile
Simple Observability stable
Free
Powerful server monitoring in a unified platform for metrics and logs, with no setup complexity. Free for one server.
Monitoring Read and confirmed 2026-11-08
Profile
skylight.io stable
Free
Application performance monitoring — free for first 100,000 traces/month.
Monitoring Read and confirmed 2026-11-07
Profile
Middleware.io stable
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
Monitoring Read and confirmed 2026-10-26
Profile
AppSignal caution effective between 2026-09-09 and 2026-09-26 reduced
Free
Application monitoring (APM, errors, logging) — Our free plan is perfect for startups, hobby, or side-projects 30K requests 1GB logging 5-day retention
Monitoring Read and confirmed 2026-11-10
Profile
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!
Monitoring Read 2026-10-24 · catalogue date 2026-07-08
Profile
−1 stale_verification Our last read of the vendor's pricing page, on 2026-10-24, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor.
Sentry stable
Developer
Developer tier: 1 user, 5K errors/month, 5M spans/month, 50 session replays, 5GB application logs, 1GB attachments
Monitoring Read 2026-11-02 · catalogue date 2026-08-11
Profile
−1 stale_verification We cannot confirm this offer: 1 consecutive re-check attempt has failed (most recently 2026-11-02 — Could not parse AI response), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor.
Hyperping stable
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
Monitoring Read 2026-10-26 · catalogue date 2026-07-07
Profile
−1 stale_verification Our last read of the vendor's pricing page, on 2026-10-26, found the page different from the terms we hold. This is our confidence in the record, not a change by the vendor.
bleemeo.com
Free
Free for 3 servers, 5 uptime monitors, unlimited users, unlimited dashboards, unlimited alerting rules.
Monitoring Read 2026-11-01 · catalogue date 2026-07-11
Profile
−1 stale_verification Our last read of the vendor's pricing page, on 2026-11-01, found the same terms as an earlier read we had declined to record. This is our confidence in the record, not a change by the vendor.
Prometheus
Free OSS
Free OSS (Apache 2.0). CNCF graduated time-series monitoring and alerting.
Monitoring Read 2026-10-10 · catalogue date 2026-08-22
Profile
−1 stale_verification Our last read of the vendor's pricing page, on 2026-10-10, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor.
Sematext stable
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.
Monitoring Read 2026-10-28 · catalogue date 2026-07-05
Profile
−1 stale_verification Our last read of the vendor's pricing page, on 2026-10-28, found the page different from the terms we hold. This is our confidence in the record, not a change by the vendor.
Datadog stable
Free
Infrastructure monitoring free for up to 5 hosts with 1-day metric retention
Monitoring Read 2026-11-05 · catalogue date 2026-08-12
Profile
−1 stale_verification We cannot confirm this offer: 9 consecutive re-check attempts have failed (most recently 2026-11-05 — The truncated pricing page text contains navigation menus and product listings but no actual pricing details, free tier terms, or host/retention limits for Infrastructure Monitoring, so the stored deal info cannot be verified.), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor.
Jaeger
Free OSS
Free OSS (Apache 2.0). CNCF graduated distributed tracing system.
Monitoring Read 2026-10-10 · catalogue date 2026-08-26
Profile
−1 stale_verification Our last read of the vendor's pricing page, on 2026-10-10, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor.
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.
Monitoring Read 2026-10-29 · catalogue date 2026-07-13
Profile
−3 free_tier_withdrawn Recorded free tier removal on 2026-08-28: The page highlights a 14-day free trial, and then lists paid plans starting at $4.99/mo. Unconfirmed. We could not check this change against an archived copy of Xitoring.com's page, so it does not count toward the rating. Source: https://xitoring.com/
−1 stale_verification Our last read of the vendor's pricing page, on 2026-10-29, found the page different from the terms we hold. This is our confidence in the record, not a change by the vendor.
fivenines.io risky 2026-05-15 removed
Trial
Linux server monitoring with real-time dashboards and alerting — no permanent free tier. 14-day free trial with no credit card required; paid plans from €19/month.
Monitoring Read and confirmed 2026-10-25
Profile
−3 free_tier_withdrawn Recorded free tier removal on 2026-05-15: fivenines.io removed its Free plan (5 monitors, 1 team member, 1 month of data retention) between the archived copies of its site from 2026-05-13 and 2026-05-15. Paid plans now start at €19 a month, with a 14-day free trial. Source: https://fivenines.io/
−2 time_limited_offer Tier "Trial" is a trial that expires, not an ongoing free tier.
Recompute today's order yourself. The order above is a permutation seeded only on the UTC date and the query key — no vendor name, slug, id or offer field is an input. The algorithm is published, so anyone can reproduce this page's order without asking us.
date
2026-11-11
query_key
alternative-to:inspector.dev
seed
1b5b73560264c6b6a2f77e21770d9eabd79eabe3e5f4b2cb0cd2fe671c1e7ec9
tie_count
14

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Frequently Asked Questions

What are the best free alternatives to inspector.dev?
We publish no ranking of these. Nothing we record measures popularity or generosity, so naming a best or a top few would be our preference rather than our data. We hold 24 free alternatives to inspector.dev, each listed below with its tier, category and the read and catalogue dates we hold. Of those, 14 carry no recorded demerit and are indistinguishable under every signal we hold, so they are listed in an order that rotates daily, 10 are demoted with the reason named. Our ranking rule is published at /criteria.
Is inspector.dev's free tier still available?
We cannot confirm that today. The page we cite for inspector.dev states no amount, tier or rate we can read when we last looked, on 2026-10-11. Our stored record says inspector.dev offers a free tier (Free), but we have not confirmed those terms against the source we cite.
How many free alternatives to inspector.dev exist?
There are 24 free alternatives to inspector.dev tracked on AgentDeals across the Monitoring category.
Has inspector.dev changed their pricing?
We hold no recorded pricing changes for inspector.dev, but the page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-11, so that is a statement about our records rather than a positive signal.