Errsole

At a glance

• Editor score
  3.7 / 10
• Pricing
  Free plan
• Best for
  Node.js teams wanting self-hosted log monitoring
• Free plan
  Yes
• Paid from
  None
• Facts checked
  28 Sep 2026

• Where it wins

  • Collects console logs automatically and supports custom levels and metadata
  • Searchable web dashboard can run with the app or as a standalone viewer
  • Stores logs in files or databases with configurable rotation

• Where it doesn't

  • Focused on logs rather than tracing or broad application performance monitoring
  • Self-hosted deployment requires teams to manage their own environment
  • Support is through community and documentation

Our verdict on Errsole

Errsole is an open-source logging and runtime monitoring module for Node.js applications, aimed at solo developers and small to mid-market teams that want to collect and inspect application logs in a self-hosted environment. It automatically captures Node.js console logs, while a custom logger adds multiple log levels and metadata. A web dashboard provides filtering and search, and notifications can flag critical errors or application crashes. This makes Errsole a practical fit when the priority is visibility into logs and crash events rather than a broad monitoring suite.

Its standout strength is the combination of collection, storage, and viewing in one logging workflow. Logs can be stored in files or databases, with configurable rotation; supported database options include MongoDB, MySQL, PostgreSQL, SQLite, MariaDB, and OracleDB. The dashboard can run alongside the application or as a separate Node.js app, giving teams a choice in how they deploy the viewer. Integrations include Node.js, Bun.js, Next.js, Winston, and Pino. Dashboard authentication and team management support shared access, while standalone deployment may suit teams that want the log viewer separated from the monitored app.

Errsole is open source under the MIT license, and its pricing model is open source with a free plan. The product is available for web use and self-hosted deployment; teams should expect to operate that deployment themselves. Support channels are community and documentation. Its scope is narrower than full runtime monitoring: the described capabilities center on log collection, search, storage, and critical-error notifications, rather than tracing or broad application performance monitoring. Choose Errsole if a self-managed Node.js logging workflow is the main need; teams seeking a wider APM feature set should consider a broader alternative.

Errsole pricing

Errsole fact sheet

Errsole integrations

Errsole lists 11 integrations on its own site.

• Node.js
• Bun.js
• Next.js
• Winston
• Pino
• MongoDB
• MySQL
• PostgreSQL
• SQLite
• MariaDB
• OracleDB

Alternatives to Errsole

• Dynatrace Infrastructure ObservabilityA broad observability suite for teams that need infrastructure, logs, traces, and Kubernetes in one view.9.4
• Datadog APMCloud APM links distributed traces with service maps, logs, metrics and real-user data.9.3
• New Relic APMBroad APM coverage starts free, with paid plans adding users, SSO and support.9.2

See all Errsole alternatives →

Featured on iTechGuides

Errsole is listed in our Runtime Monitoring Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 9 Oct 2026 · How we research and update