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    Sentry’s real-time error tracking gives you insight into production deployments and information to reproduce and fix crashes—before your users contact you.
  1. Logtail lets you query your logs the same way you query a database. Experience radically better SQL-compatible log management at an unbeatable price.


  2. GlitchTip's open source platform makes monitoring software easy. Track errors, monitor performance, check site uptime all in one place. Compatible with Sentry client SDK but easier to run and entirely open source.
    • FreemiumProprietary
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    • Android
    • Ruby
    • Python
    • .NET Framework
    • JavaScript
    • PHP
    • Ruby on Rails
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    Rollbar collects errors that happen in your application, notifies you, and analyzes them so you can debug and fix them. JavaScript, Ruby, Python, PHP, Node.js, Android, Flash, .NET, and Java libraries are available.
  3. Pinpoint and solve performance issues in your Ruby, Java, .NET, PHP and Python apps with real user, application and server monitoring.
  4. Bugsnag automatically detects errors in your mobile, front-end, and back-end applications, and provides your team the tools to fix things fast. Bugsnag provides clear insights on the frequency and user impact of each error, so your team can make informed prioritization decisions.
  5. Logit.io is used for a wide variety of use cases including log management, business intelligence, SIEM, APM, container monitoring, infrastructure monitoring, monitoring website uptime, measuring sales performance & vulnerability scanning.
  6. Continuous integration build testing and error reporting for developers. 1 simultaneous build for free for both private and public projects on Github.
  7. Monika is a command-line application to monitor every part of your web app using a simple YAML configuration file. Get alert notifications through SMTP, Discord, Slack, WhatsApp, and many more when your site is down but also when it's slow!.
  8. Raygun error, crash, and performance monitoring helps customer-centric teams detect, diagnose, and resolve software issues impacting real end-users.
  9. Real time, actionable insights into your log analytics data with ELK as a service.
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  10. Errorception is a simple and painless way to find out about JavaScript errors, as they occur in your users' browsers. All you need to do is insert a script tag on your page, and you will start recording errors as they happen in real-time.
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    • FreeProprietary
    • Mac
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    • .NET Framework
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    ELMAH (Error Logging Modules and Handlers) is an application-wide error logging facility that is completely pluggable. It can be dynamically added to a running ASP.NET web application, or even all ASP.
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    • FreemiumProprietary
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
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    Bugfender is a log storage service for application developers. Bugfender collects everything happening in the application, even if it doesn’t crash, in order to reproduce and resolve bugs more effectively and provide better customer support.
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    • Windows
    • Linux
    • Online
    • BSD
    • Python
    • JavaScript
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    Error tracking and exception handling for developers, startups, and freelancers.