Sentry
Sentry is the industry standard for error monitoring and performance tracking. It captures exceptions, stack traces, breadcrumbs, and performance metrics across every platform (JavaScript, Python, iOS, Android, etc.). Self-host with Docker or use their generous free cloud tier. Best for any development team that needs visibility into production errors.
AI ToolFree Tier: Free tier: 5K errors/month; fully free self-hostedCompany: Sentry (Functional Software)Category: Git ReposOpen Source: YesQuick Start: For cloud: sign up at sentry.io (free tier) → Install the SDK for your language → See errors appear in the dashboard in real timeVisit Sentry