Amazon CloudWatch Logs

Amazon CloudWatch Logs collects and stores logs from AWS resources, applications, services, on-premises systems, and other clouds. It provides log pipelines, structured parsing, archive export, and live log tailing through cloud deployment with web and API access. Logs Insights can filter and aggregate data, use regular expressions, visualize time-series results, and export them to CloudWatch Dashboards. Standard logs are for real-time monitoring and advanced analytics; Infrequent Access supports ad-hoc querying and forensic analysis. Live Tail gives users an interactive view of streaming logs, and anomaly detection uses machine learning to identify log structures, trends, and unusual content. Teams can search logs across accounts from a central monitoring account. CloudWatch integrates with AWS services as well as Prometheus, Grafana, and OpenTelemetry. The free tier includes 5 GB for ingestion, archive storage, and Logs Insights scans, plus 1,800 Live Tail minutes per month. Usage is billed at month end with no upfront commitment or minimum fee; rates vary by Region and usage.

CloudWatch Logs combines collection, querying, anomaly detection, and live analysis, with a free tier covering specified monthly allowances. Paid usage is charged at month end and varies by Region.

It may suit teams monitoring logs and operational health across AWS, on-premises, or other-cloud workloads. Central cross-account views and supported integrations may also help teams managing multiple accounts or observability tools.

Overview

Amazon CloudWatch Logs collects and stores logs from AWS resources, applications, on-premises systems, and other clouds. It suits teams that want log analysis within AWS’s broader monitoring environment. Its central strength is bringing collection, investigation, and operational visibility together; usage-based charges make volume management important.

Key features

Standard log groups support real-time monitoring and advanced analytics, while Infrequent Access is aimed at occasional queries and forensic analysis. That distinction helps teams align log access with purpose, but workloads needing frequent investigation are a better fit for Standard. Logs Insights supports filters, aggregations, and regular expressions, and can visualize time-series results or export them to CloudWatch Dashboards.

Live Tail gives teams an interactive view of streaming logs for live investigation. Anomaly Detection uses machine learning to identify log structures, trends, notable content, and anomalies, and teams can set alarms and automate responses. Data-protection policies can scan ingested logs and mask sensitive information. Logs are encrypted in transit and at rest, support AWS KMS encryption for log groups, and are PCI and FedRAMP compliant.

Logs can be sent through the CloudWatch Agent, installed with AWS Systems Manager, or the PutLogData API. Native integrations span AWS services; integrations also include Prometheus, Grafana, OpenTelemetry, and direct sources such as CrowdStrike Falcon, Microsoft Office 365, Okta Auth0, Microsoft Entra ID, Wiz, and GitHub Audit Logs. Cross-account views let teams search and query logs from a central monitoring account at no additional cost. Integration with Amazon OpenSearch Service enables querying and analysis without moving or duplicating logs.

Pricing

The free tier costs free and includes 5 GB for log ingestion, archive storage, and Logs Insights data scanned, plus 1,800 Live Tail minutes per month. It also includes one Contributor Insights rule per month, 10 custom or detailed monitoring metrics, three custom dashboards referencing up to 50 metrics each, and 10 alarm metrics for applicable standard-resolution alarms. These allowances make it possible to cover a modest workload, but exceeding them shifts costs to usage-based pricing.

Published pay-as-you-go rates include $0.50 a month for log ingestion, the first 10 TB per month in US East (N. Virginia), and $0.03 a month for archived log storage. Rates vary by Region and tier. Paid Live Tail costs $0.01 per minute. There is no upfront commitment or minimum fee; usage is charged at month end, and total paid usage has custom pricing. The free tier has no trial period beyond its stated allowances.

Platforms

CloudWatch Logs is cloud-deployed and available through web and API. Supported environments include Amazon ECS, Amazon EKS, Red Hat OpenShift on AWS, and Kubernetes on Amazon EC. Workloads can also run on premises or in other clouds. Container log collection, container metrics, resource alerts, and runtime events support operational monitoring; the offering also includes mobile app monitoring, interaction tracking, geographic breakdown, error correlation, and Core Web Vitals. Data retention is 30 days.

Who it's for

CloudWatch Logs is a strong choice for AWS-centered teams that want log search, live investigation, anomaly detection, and cross-account visibility alongside metrics and traces. Its AWS integrations and centralized views are especially useful when teams already manage workloads across multiple AWS accounts. Readers with unpredictable or high-volume ingestion should account for usage charges, while teams seeking a self-hosted deployment should look elsewhere.

Pros and cons

• Pro: Native AWS integrations and no-additional-cost cross-account log views support centralized operations across accounts.
• Pro: Logs Insights combines expressive queries, visualizations, and dashboard export, while Live Tail serves immediate investigations.
• Pro: Sensitive-data masking, encryption, AWS KMS support, and PCI and FedRAMP compliance address security needs.
• Con: Charges vary by Region and usage, so ingestion, archive, query scans, and Live Tail can make total spend harder to predict.
• Con: The free tier is bounded by monthly allowances, including 5 GB across three log activities and 1,800 Live Tail minutes.

Alternatives

Logflare is worth considering for readers who want a freemium service across mobile, web, API, and self-hosted platforms; its free Project plan includes unlimited sources but limits retention to three days.

ELK Stack is an alternative for teams seeking a freemium option with self-managed deployments across Linux, macOS, and Windows.

SparkLogs offers a freemium alternative across self-hosted and major desktop and mobile platforms.

Google Cloud Logging is another freemium cloud logging option, with a stated free allowance of 50 GiB per project per month for non-vended network log storage.

Oracle Cloud Infrastructure Logging has a freemium plan that includes 10 GB of log storage per month.

Sumo Logic suits readers looking for a web-based freemium option with a free plan of 20 daily credits and seven-day log retention, capped at three users.

Oracle Log Analytics has a freemium plan that includes the first 10 gigabytes of log storage.

Elastic Observability is a paid alternative with a free plan and trial, spanning self-hosted and cloud-oriented platforms.

Browse Log Management Software, Metrics Monitoring Tools, Real User Monitoring, and Container Monitoring for more options by category.

Verdict

Choose CloudWatch Logs if your team works across AWS and wants log collection, analysis, live monitoring, and cross-account visibility in one observability environment. Its strongest reason to buy is the depth of AWS integration; its main drawback is a bill that scales with usage and varies by Region. Teams needing self-hosting or a more predictable fixed price should compare alternatives.