Perceptr is an open-source AI bug detection platform built for frontend teams that want to find and reproduce issues before users report them. It records user sessions, uses AI to detect UI bugs, broken flows, and backend errors, and automatically creates clear reproduction steps with full session context. Users can set it up with just one line of code, without event definitions or complex configuration, and it works alongside tools like Sentry, Jira, and Linear. Teams also get smart issue categorization, proactive alerts, and session-based insights, while the open-source approach allows them to inspect the code and self-host when needed. Perceptr offers a Free Forever plan for up to 5,000 monthly sessions, a Startup plan at $199/month for up to 50,000 sessions, and a custom Enterprise plan with unlimited sessions and advanced features.