DeadBro is a Rails-first application performance monitoring (APM) platform built by Ruby Dev. Add one gem, get live request traces, slow SQL, N+1 signals, and error tracking in a single dashboard—without enterprise pricing tied to host count.

What it does

• Automatic N+1 detection — flags N+1 queries in real time with full query traces and line numbers
• Rails error tracking — stack traces, request context, user info, and Slack notifications
• Real-time dashboards — SQL performance, cache hit rates, memory patterns, and user activity
• Built-in uptime checks — Is It Dead incidents alongside your APM data
• System monitor — queues, CPU, memory, and DB latency samples next to request traffic

Why DeadBro

DeadBro is purpose-built for Rails teams that want serious visibility without juggling multiple vendors. Request-based billing scales with traffic, not machine count—a free tier stays free (50k requests/month), and paid plans start at €19/month. Data is EU-hosted on dedicated bare-metal servers, not US hyperscalers.

Getting started

Add dead_bro to your Gemfile, run bundle install, and configure an initializer with your API key from the dashboard. You can be up and running in under five minutes.

Works with the Bro family

DeadBro pairs naturally with SolidBro (Solid Queue UI) and SideBro (Sidekiq Web UI)—all maintained by Ruby Dev for Rails background job observability.

Get started free View features