Backup and restore Android devices, list contents of, unpack, and convert Android Backup files to TAR files and back, decrypt, encrypt, split them into by-app pieces, etc. Android Backup files are `backup.ab`, `*.ab`, `*.adb`, and similarly named files produced by `adb shell bu backup`, `adb backup`, `bmgr`, and similar tools.

Passively capture, archive, and hoard your web browsing history, including the contents of the pages you visit, for later offline viewing, replay, mirroring, data scraping, and/or indexing. Your own personal private Wayback Machine that can also archive HTTP POST requests and responses, as well as most other HTTP-level data.

Fetch, flag/mark, delete/expire, and perform other batch operations on messages residing on IMAP servers. A very fast KISS mail fetcher with cool security and convenience features.

Find files matching given criteria quickly, find duplicated files and deduplicate them, record file hashes and verify them, etc.