B1 Archiver vs PeaZip

B1 Free Archiver creates and extracts archives, with desktop software, an Android app and an online archiver. The desktop application creates B1 and ZIP archives and supports almost 40 formats, including RAR, RAR5 and 7z. The online tool extracts files from B1, ZIP, RAR, 7z and other archive types. On Android, B1 also works as a file manager. The B1 format supports password protection using 256-bit AES encryption, and the desktop archiver checks archive integrity with Adler-32 before unpacking. B1 says files uploaded to its online archiver are deleted a few minutes after the page is closed. Its privacy policy says it does not knowingly collect identifying personal data, though it may collect non-personally identifiable server information such as IP address and browser type. The policy also says app and device usage data, including location and network performance, may be collected for anonymous ad-related use in B1 apps. Support is by email and in English only. B1 is free for personal and commercial use, with no registration.

PeaZip is a free file archiver and archive manager for creating, opening, and extracting archives on Linux, macOS, and Windows. It extracts more than 200 archive formats and variants, including 7Z, RAR, TAR, ZIP, Brotli, and Zstandard, and can create supported archives, convert existing ones, and split or join files. Its file manager includes browsing, search, bookmarks, duplicate detection, and integrated text, hex, and image viewers. Encryption options include strong encryption, authenticated encryption, and optional password-and-keyfile two-factor authentication. Tasks set up in the graphical interface can be exported as command-line scripts. Portable packages are available for all three listed platforms and can be used without installation. PeaZip is licensed under GNU LGPLv3 and is free for personal, professional, and commercial use; the listed plan is free. The software says it does not collect or transmit personally identifiable information. Packages are not currently signed, but SHA256 hashes are published for integrity checks. Creating RAR archives requires WinRAR, while opening or extracting ACE files requires the optional UNACE plugin.