Sentry’s real-time error tracking gives you insight into production deployments and information to reproduce and fix crashes—before your users contact you.



The best free alternative to Bugfender is Sentry. If that doesn't suit you, our users have ranked more than 25 alternatives to Bugfender and 19 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Bugfender are Logstash, Android Debug Bridge, AppSignal and Rollbar.
Sentry’s real-time error tracking gives you insight into production deployments and information to reproduce and fix crashes—before your users contact you.



Logstash is an open source, server-side data processing pipeline that ingests data from a multitude of sources simultaneously, transforms it, and then sends it to your favorite "stash.".



Android Debug Bridge (adb) is a versatile command-line tool that lets you communicate with a device. The adb command facilitates a variety of device actions, such as installing and debugging apps, and it provides access to a Unix shell that you can use to run a variety of...

Monitoring for Ruby & Elixir developers. All the metrics and alerts you need to keep your app running smooth. Support for Rails, Rack, Sinatra, Padrino & Grape.




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.



Open source observability platform. SigNoz helps developers find issues in their deployed applications & solve them quickly.









Android Ultimate Toolbox Pro is a free program that enables you to flash your Android device. The program allows you to perform tasks such as: flash kernels, flash ROMs, ect.




Loggly is a cloud-based log management service built on top of a powerful search engine. With Loggly, you can collect logs from your servers then quickly search them with an intuitive user interface. We make looking at logs fun again!




Monitor and reproduce errors in web sites/applications. Using the built-in recorder feature you’ll know exactly what the user did. This means you don’t have to read call stacks or parse through huge logs to be able to reproduce bugs.



Warnly is an open-source exception monitoring platform designed for development teams that demand simplicity, speed, and transparency.
It's the original android developers development toolbox developed by the original developers