Z-Sync
Z-Sync is not affiliated with, endorsed by, or an official product of Zen Browser.
Z-Sync is a native iOS and Android app. It syncs your spaces, tabs, and essentials with Zen Browser over Firefox Sync.
Share into a space
Share a link from another app and save it into a space as a pinned tab or a normal tab.
Quick browser
Look something up in a small in-app browser without leaving Z-Sync.
Repo
| Path | What |
|---|
ios/ | SwiftUI app (ios/project.yml → XcodeGen) |
android/ | Kotlin + Jetpack Compose |
shared/contract/ | Sync spec and golden JSON, no executable code |
store-listings/ | App Store and Play screenshots |
docs/ | The marketing site at z-sync.kjell.cc, uploaded to Cloudflare as-is. Hand-written HTML, CSS and one small script, no build step. Also holds privacy.md, the app's privacy policy. |
Maintained by one person.
Contributing
See CONTRIBUTING.md.
Community
Questions, ideas and general chat belong in Discussions.
Use Issues for concrete bugs and feature requests.
Support
Z-Sync is free and ad-free. If you'd like to say thanks:
License
Copyright (c) 2026 Kjell Behrends. MIT License.
Icons from Zen Browser are MPL 2.0.
Privacy
