Global CSS and JS for Jira

for Jira Server 9.0.0 - 9.5.1 and more
170 installs
  • Jira Service Management

We no longer offer sales and support for server apps. You can stay connected by exploring the migration options to either the cloud or Data Center version of this app.

Use CSS and Javascript to customize your Jira environment safely and easy. Now includes a new Dark Mode to give Jira a dark theme

Add custom CSS and JS

Clean up your announcement banner and use dedicated editors to safely add custom Javascript and CSS to Jira.

Javascript Syntax Check

Check your Javascript for syntax errors to find bad code before it's committed to your Jira installation.

Customize Jira

Safely customize Jira to your liking using your own custom code.

More details

Learn how to setup Global CSS & JS for Jira or read how to get started.


  • Custom CSS & Javascript: Add custom CSS and Javascript to your Jira environment with dedicated Javascript and CSS fields.
  • JS sytnax check: Quickly check your Javascript syntax for common mistakes.
  • Dark Mode: Users can enable darkmode, which changes Jira to a dark theme that makes using Jira in dark environments more comfortable.

Privacy and security

Privacy policy

Atlassian's privacy policy is not applicable to the use of this app. Please refer to the privacy policy provided by this app's partner.

Partner privacy policy



Enable Dark Mode and let your Jira users choose if they prefer to use Light Mode or Dark Mode. Dark Mode lets you use Jira comfortably in dark environments.