Extend Bulwark
your way.
Free and open source plugins and themes that plug right into Bulwark Webmail. Add new features, customize the interface, or build your own.
The directory is just getting started.
Be the first to publish a plugin or theme. We review every submission and publish the ones that meet our open source and quality guidelines.
Plugins and themes,
no lock-in.
Plugins
Add hooks, UI buttons, sidebar apps, keyboard shortcuts, and whole new workflows that integrate with Bulwark's JMAP client.
Themes
Fonts, colors, layouts — customize the look and feel of your inbox.
Developer docs
API reference, manifest schema, permission model, and the submission checklist.
Review guidelines
Every extension is reviewed for safety, permissions, and licensing before it's published.
Publish yours
Link a public GitHub repo and a release tag. We handle the bundle, scan, and listing.
Build something worth installing.
The extension API is small, typed, and open source. Submit a plugin or theme and put it in front of the whole Bulwark community.