Crash and Exception Handling

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.

Error-tracking with Sentry-SDK compatability. Free for up to 5,000 errors/month, or unlimited use when self-hosted.

Free for up to 2,000 errors/month after the initial trial

JavaScript error tracking with screenshots and click trails. Free for open-source projects.

Error logging and uptime monitoring for web developers. Free Small Business subscription for open-source projects.

Mobile app monitoring. Free for small teams with up to 1 million user sessions per year.

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.

Simple, open-source error tracking. Compatible with open-source Sentry SDKs. 1000 events per month for free, or can self-host with no limits

Exception, uptime, and cron monitoring. Free for small teams and open-source projects (12,000 errors/month).

Developer friendly bug reports in one click. Free plan with unlimited jams.

Cloud device observability and debugging platform. 100 devices free for [Nordic](https://app.memfault.com/register-nordic), [NXP](https://app.memfault.com/register-nxp), and [Laird](https://app.memfault.com/register-laird) devices.

Exception and error monitoring, free plan with 5,000 errors/month, unlimited users, 30 days retention

Free all-in-one kill switch for your mobile apps.

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

One-click bug reports straight in your browser. Free plan with unlimited recordings for personal use.