Convert m4b to muse

Download and install the latest version of Filestar.
Right click on one or more M4b file(s) on your desktop and select Convert with Filestar.
Type convert to muse in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.m4b -c "convert to muse" (how).

Let your AI agent convert M4B to MUSE

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Then ask your agent:

“Convert the M4B files in my Downloads folder to MUSE”

Or run it yourself:

filestarcli -i file.m4b -c "convert to muse"

Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.

Can my AI agent convert M4B to MUSE?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.m4b -c "convert to muse" on your computer, so your files stay on it.

Using Filestar With AI Agents →

What is the difference between .m4b and .muse?

Name: MPEG-4 Audio Book File; Emacs Muse Document
Extension: .m4b; .muse
Format: Binary; Text
Category: Audio; Document
Developer: Apple; John Wiegley
Description: It is an audiobook file compressed using .AAC algorithm based on MPEG-4 container format. It is similar to .M4A file but its denoted as an audiobook and supporting audio players can bookmark it.; Emacs Muse is a lightweight markup language and authoring tool for Emacs, used to write structured documents that can be published to formats like HTML, LaTeX, and PDF. The .muse extension denotes a plain text file written in this markup syntax.
MIME Type: audio/x-m4a; text/x-muse
Sample: sample.m4b; sample.muse
Wikipedia: .m4b on Wikipedia

Convert M4b To Muse Today

Get started within minutes

Download