Command-line tool

b4

brew/b4

Checked 25 Oct 2026, 21:09 UTC · Listing refreshed from Homebrew, winget, npm, Scoop and cargo; npm packages checked against OSV.dev

Tool to work with public-inbox and patch archives

Website

At a glance

Type

Command-line tool

Install on

Windows, macOS, Linux

Last checked

25 Oct 2026, 21:09 UTC

Install it

Windows

pipx install b4

macOS

brew install b4
pipx install b4

Linux

brew install b4
pipx install b4

Retrieve a thread from a public-inbox archive and save as an mbox file

b4 mbox message_id

Retrieve patches from a thread and prepare them for applying with `git am`

b4 am message_id

Retrieve and apply patches directly to the current Git tree

b4 shazam message_id

Browse

• Email

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