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B6Z 7Z
File conversion

Convert B6Z to 7Z

Verified by Adam B.· reviewed by FE Editorial ·updated Sep 2, 2026
QUICK ANSWER
Is it possible to convert B6Z to 7Z?
Yes - B6Z converts to 7Z.

There is no single one-click B6Z-to-7Z button; you extract the .b6z (it uses LZMA2, the 7z algorithm) and then compress the extracted files back into a .7z. PeaZip does both steps in one GUI on Windows and Linux; on macOS the native B6Zip app or The Unarchiver opens it.

Also to 7Z: EGG · 7Z.002 · 7Z.001

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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Why convert B6Z to 7Z?

B6Z is a proprietary macOS archive from B6Zip built on the same LZMA2 compression as .7z. Converting to .7z gives you a widely supported, open format that opens in 7-Zip, PeaZip and most archive managers on any platform.

How to convert B6Z to 7Z

PeaZip EASIEST

Open the .b6z in PeaZip, select all contents, then use Convert (or extract and re-add) choosing 7Z as the output format to write a standard .7z.

7-Zip FREE

Right-click the extracted files in Explorer, choose 7-Zip > Add to archive, set Archive format to 7z and click OK. Use 7-Zip or PeaZip to extract the .b6z first.

B6Zip / The Unarchiver APP

On macOS open the .b6z with B6Zip (its native app) or The Unarchiver to extract it, then repack the files as .7z with Keka or p7zip.

About these formats

.B6Z B6Z Archive

A .b6z file is a compressed archive made by B6Zip, a macOS utility that packs one or more files into a single container. It uses LZMA2 compression by default and supports optional AES-256…

Open .B6Z details →
.7Z 7-Zip Archive

A 7z file is a compressed archive in the 7-Zip format, created by Igor Pavlov in 1999. It bundles files and folders into one compressed container, often smaller than ZIP, and can include…

Open .7Z details →

Quality & what to watch

  • This is a two-step extract-then-repack; the B6Z container and any B6Z-specific metadata or encryption settings are not carried over.
  • Plain 7-Zip may not open every .b6z directly despite the shared LZMA2 core; PeaZip or the B6Zip app are the most reliable openers.
  • The file contents are unchanged and lossless - only the archive wrapper changes from B6Z to 7Z.

Frequently asked questions

Can 7-Zip open a .b6z directly?
Sometimes, because B6Z uses LZMA2, but it is not guaranteed; PeaZip or the native B6Zip app open it reliably.
Is any data lost converting to 7z?
No, the stored files are extracted losslessly; only the proprietary B6Z wrapper is discarded.
What made the .b6z file?
B6Zip, a macOS archiver that defaults to LZMA2 compression with optional AES-256 encryption.
Do I need macOS to open it?
No - PeaZip on Windows or Linux can extract most B6Z archives without the original Mac app.