A backup application for the Android Open Source Project.
If you are having an issue/question, please look at our FAQ.
- Local Contacts Backup - an app that backs up local on-device contacts
- Storage library - a library handling efficient backup of files
- Seedvault app - the main app where all functionality comes together
- Backup application data to a flash drive.
- Restore application data from a flash drive.
- User-friendly encryption using a mnemonic phrase (BIP39).
- Automatic daily backups that run in the background.
SeedVault is developed alongwith AOSP releases
We update it every time Google releases a new Android version, make any changes required for basic functionality, and any improvements possible through API changes in the OS.
This means that for ROMs using SeedVault it's recommended to use the same branch as your android version
- This current branch
android14is meant for usage with Android 14 - This is indicated by the version name starting with
14, and the version code starting with34- the Android 14 API version
For older versions of Android, check out the branches.
Trying to use an older branch on a newer version may lead to issues and is not something we can support.
- Check out the wiki for information on building the application with AOSP.
This application is compiled with the operating system and does not require a rooted device for use.
It uses the same internal APIs as adb backup which is deprecated and thus needs a replacement.
android.permission.BACKUPto back up application data.android.permission.ACCESS_NETWORK_STATEto check if there is internet access when network storage is used.android.permission.MANAGE_USBto access the serial number of USB mass storage devices.android.permission.WRITE_SECURE_SETTINGSto change system backup settings and enable call log backup.android.permission.QUERY_ALL_PACKAGESto get information about all installed apps for backup.android.permission.INSTALL_PACKAGESto re-install apps when restoring from backup.android.permission.MANAGE_EXTERNAL_STORAGEto backup and restore files from device storage.android.permission.ACCESS_MEDIA_LOCATIONto backup original media files e.g. without stripped EXIF metadata.android.permission.FOREGROUND_SERVICEto do periodic storage backups without interruption.android.permission.FOREGROUND_SERVICE_DATA_SYNCto do periodic storage backups without interruption.android.permission.MANAGE_DOCUMENTSto retrieve the available storage roots (optional) for better UX.android.permission.USE_BIOMETRICto authenticate saving a new recovery codeandroid.permission.INTERACT_ACROSS_USERS_FULLto use storage roots in other users (optional).android.permission.POST_NOTIFICATIONSto inform users about backup status and errors.
Bug reports and pull requests are welcome on GitHub at https://github.com/seedvault-app/seedvault.
See DEVELOPMENT.md for information on developing Seedvault locally.
This project aims to adhere to the official Kotlin coding style.
⚠ WARNING: the Seedvault developers make no guarantees about external software projects. Please be aware that disclosing your secret recovery key to other software has security risks.
The Seedvault backup parser allows you to decrypt and inspect your backups (version 0 backup). It can also re-encrypt them.
The Seedvault extractor allows you to decrypt and inspect your backups from newer versions of Seedvault (version 1 backup). It is currently work-in-progress.
This application is available as open source under the terms of the Apache-2.0 License.
This project is primarily developed and maintained by the Calyx Institute for usage in CalyxOS.
This project was funded through the NGI0 PET Fund, a fund established by NLnet with financial support from the European Commission's Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 825310.