Warnly

Spec sheet

Product

Warnly is an open-source exception monitoring platform designed for development teams.Read 9 Oct 2026 · docs.warnly.io

Authentication

Users can authenticate with local accounts or external providers such as OIDC.Read 9 Oct 2026 · docs.warnly.io

Data control

The maker says self-hosting keeps data on your infrastructure and gives you control over sensitive error information.Read 9 Oct 2026 · warnly.io

Error grouping

Warnly groups similar error events into issues using fingerprints and similarity matching across error characteristics, stack traces, messages, and context.Read 9 Oct 2026 · docs.warnly.io

Event details

Events can include an error message and stack trace, environment and release information, user and device context, timestamps, and unique identifiers.Read 9 Oct 2026 · docs.warnly.io

Integrations and infrastructure

The documented setup uses MySQL for primary data storage and ClickHouse for analytics and event storage.Read 9 Oct 2026 · docs.warnly.io

Limits and roadmap

The repository roadmap marks mobile and frontend exception monitoring, swappable storage, and SLO and flexible alerting rules as not implemented.Read 9 Oct 2026 · github.com

Observability

The server configuration supports OpenTelemetry tracing and an optional Prometheus metrics endpoint.Read 9 Oct 2026 · docs.warnly.io

Project access

Projects have their own API keys, and teams and users can be assigned to projects to manage access to issues.Read 9 Oct 2026 · docs.warnly.io

Requirements

The quickstart lists Docker and Docker Compose as recommended, Go 1.25 or later for building from source, MySQL 8.0 or compatible, and ClickHouse 24 or later.Read 9 Oct 2026 · docs.warnly.io

Security and compliance

The maker describes Warnly as self-hosted and says data stays on your infrastructure; the opened pages did not state a compliance certification.Read 9 Oct 2026 · warnly.io

Self-hosting

Warnly is designed to run on your infrastructure, with Docker, Kubernetes, or bare-metal deployment listed on its site.Read 9 Oct 2026 · warnly.io

Sentry compatibility

Warnly accepts error events through an HTTP API and supports the Sentry envelope format for compatibility with Sentry clients.Read 9 Oct 2026 · docs.warnly.io

Support and community

The site links to GitHub for contributions and community, and to online documentation for setup guidance.Read 9 Oct 2026 · warnly.io

Plans and prices

Every Warnly plan and price →

Where Specifiction places it

• Error Monitoring Software#27 of 307.3