Crash and Exception Handling

• CatchJS.com - JavaScript error tracking with screenshots and click trails. Free for open-source projects.
• bugsnag.com — Free for up to 2,000 errors/month after the initial trial
• elmah.io — Error logging and uptime monitoring for web developers. Free Small Business subscription for open-source projects.
• Embrace — Mobile app monitoring. Free for small teams with up to 1 million user sessions per year.
• exceptionless — Real-time error, feature, log reporting, and more. Free for 3k events per month/1 user. Open source and easy to self-host for unlimited use.
• GlitchTip — Simple, open-source error tracking. Compatible with open-source Sentry SDKs. 1000 events per month for free, or can self-host with no limits
• honeybadger.io - Exception, uptime, and cron monitoring. Free for small teams and open-source projects (12,000 errors/month).
• memfault.com — Cloud device observability and debugging platform. 100 devices free for Nordic, NXP, and Laird devices.
• rollbar.com — Exception and error monitoring, free plan with 5,000 errors/month, unlimited users, 30 days retention
• sentry.io — Sentry tracks app exceptions in real-time and has a small free plan. Free for 5k errors per month/ 1 user, unrestricted use if self-hosted
• Axiom — Store up to 0.5 TB of logs with 30-day retention. Includes integrations with platforms like Vercel and advanced data querying with email/Discord notifiers.
• Semaphr — Free all-in-one kill switch for your mobile apps.
• Jam - Developer friendly bug reports in one click. Free plan with unlimited jams.
• Whitespace – One-click bug reports straight in your browser. Free plan with unlimited recordings for personal use.