Overview

Bugzilla is a mature, open-source bug-tracking system used to track defects, issues, and enhancements in software development projects. It supports advanced search, customizable workflows, time tracking, and security controls, and is installable on multiple operating systems.

Updated Sep 8, 2026.

Key Features

Pros

Open-source and free to use without licensing fees.
Highly customizable with support for custom fields, workflows, and extensions.
Robust security features including group-based visibility and protection against common web vulnerabilities.
Supports multiple database engines and authentication methods.
Used and trusted by large open source projects and organizations globally.

Cons

Requires installation and hosting on own servers, which may require technical expertise.
User interface may be less modern compared to newer SaaS bug trackers.
No hosted or cloud version officially provided; users must self-host.
May have a steeper learning curve for new users due to extensive features.
Limited direct integrations compared to some commercial bug tracking tools.

Plan

Price

Highlights

Free

0 perpetual

Open-source and free to use

Self-hosted installation
Full access to all features
Community support

Key Features

Pros

Open-source and free to use without licensing fees.
Highly customizable with support for custom fields, workflows, and extensions.
Robust security features including group-based visibility and protection against common web vulnerabilities.
Supports multiple database engines and authentication methods.
Used and trusted by large open source projects and organizations globally.

Cons

Requires installation and hosting on own servers, which may require technical expertise.
User interface may be less modern compared to newer SaaS bug trackers.
No hosted or cloud version officially provided; users must self-host.
May have a steeper learning curve for new users due to extensive features.
Limited direct integrations compared to some commercial bug tracking tools.