What is Bugzilla?

Bugzilla is a free, open source, web-based bug and issue tracking system originally developed by Netscape and released by the Mozilla project in 1998. It is used by large open source projects including Mozilla, LibreOffice, Apache, and the Linux kernel to manage defect reports, with powerful Boolean search charts, product and component management, milestones, and time tracking.

Because Bugzilla is fully open source, there is no vendor license fee; teams download and self-host it on their own infrastructure at no cost. The project is independently funded through community sponsorship. Its interface is dated compared to modern trackers, but it remains valued for its search power, email integration, and long track record on large scale software projects.

Key Features of Bugzilla

Here are the powerful features that make Bugzilla stand out from the competition. Packed with innovative tools and advanced functionalities, this software offers a range of benefits.

  • Advanced Boolean search charts for complex queries
  • Automatic duplicate bug detection
  • Product and component management
  • Milestones and versioning
  • Time tracking for estimates and work logs
  • Email notification and bugmail integration
  • Custom fields and workflow states
  • Fine-grained user permissions and groups
  • Patch/attachment management with review flags
  • REST API for integrations

Bugzilla Pricing

Here are the pricing plans for Bugzilla. Choose the plan that best fits your requirements and budget.

Open Source / Self-hosted

Free

Unlimited users (self-hosted)

Free to download and self-host under the Mozilla Public License; no official paid tier or vendor support contract

Bugzilla Specifications

Get a closer look at the technical specifications and system requirements for Bugzilla. Find out if it's compatible with your operating system and other software.

Software Tagline :
Free, open source web-based bug tracking system originally built by Mozilla
Deployment :
  • on premises
Subscription Plan :
onetime
Desktop Platforms :
  • web app
Mobile Platforms :
Language Support :
english
Target Audience :
  • startups
  • smes
  • enterprises
Available Support :
Integrations :
Git, CVS, Subversion via hooks, LDAP authentication, email/bugmail integration
Product Url :
API Available :
Yes
Free Trial Available :
No
Run On Mobile Browser :
Yes
Free Plan Available :
Yes
Customization Available :
Yes

Bugzilla Videos

Bugzilla Screenshots

Overall Bugzilla Reviews

Here's our unbiased review of Bugzilla. Discover how our team of experts rates its features, ease of use, customer support, and other aspects that contribute to its overall appeal.

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Bugzilla Pros and Cons

Bugzilla FAQs

Yes, Bugzilla is completely free and open source, with no vendor license fees for self-hosting.

Bugzilla was originally released by the Mozilla project in 1998 and is maintained as an independently funded open source project used by Mozilla, LibreOffice, the Linux kernel, and many other organizations.

Yes, Bugzilla provides a REST API for integrating bug data with other tools and scripts.

No official Bugzilla cloud service exists from the project itself; it is self-hosted software, though some third-party providers offer hosted Bugzilla instances.

Bugzilla offers Boolean Charts that let users build complex queries with multiple conditions, logical operators, and nested criteria, considered one of the more powerful search systems among bug trackers.