Checkend

What Checkend is

Checkend is self-hosted error monitoring for applications, with a dashboard for tracking errors while keeping error data on your own servers. Similar errors are grouped automatically through fingerprinting, and teams can define custom fingerprints. Notifications can be routed to email, Slack, Discord, webhooks, or GitHub Issues, with rules configured separately for each app. Teams can invite members by email, assign apps to teams, and use role-based access. A full REST API covers apps, problems, teams, and users, with fine-grained permissions.

Checkend supports frontend monitoring and source maps. Its listed Ruby integrations include Rails, Sinatra, Rack, Sidekiq, and Resque, and a single Ruby SDK serves major Ruby frameworks, web apps, and background jobs. For Python, it captures errors together with tracebacks, request data, and other context. The product can be deployed using one Docker command and uses PostgreSQL without requiring Redis. Checkend describes its source as available under the O'SASSY License and welcomes contributions for additional SDKs. The Free plan costs nothing, billed Forever, with no subscriptions or per-event fees.

Who it suits

Checkend suits developers and teams who want to monitor application errors while keeping the data on infrastructure they control. It is relevant to Ruby and Python projects, as well as teams that need app-level notification rules, role-based access, and API management.

Limits

The Free plan is self-hosted and costs nothing, billed Forever. It has no subscriptions or per-event fees.

Getting started

1. Open the Checkend website.
2. Deploy Checkend with Docker, using PostgreSQL.
3. Connect an application using a listed Ruby integration or the Python error reference.
4. Configure app fingerprints and notification rules.
5. Invite team members and assign apps as needed.

Verdict

Choose Checkend if you want self-hosted error monitoring with team controls, flexible notifications, and no per-event fees. Its listed integrations focus on Ruby and Python, so teams using other stacks should check whether their needs are covered before choosing it.