---
name: "mdconvert"
section: "1"
platform: "linux"
package: "isync"
version: "1.5.1-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/mdconvert"
---

# mdconvert(1)

Maildir mailbox UID storage scheme converter

## NAME

mdconvert - Maildir mailbox UID storage scheme converter

## SYNOPSIS

**mdconvert** \[*options* ...\] *mailbox* ...

## DESCRIPTION

**mdconvert** converts Maildir mailboxes between the two UID storage schemes supported by **mbsync**. See **mbsync**'s manual page for details on these schemes.

## OPTIONS

- **-a**, **--alt**

  Convert to the **alternative** (Berkeley DB based) UID storage scheme.

- **-n**, **--native**

  Convert to the **native** (file name based) UID storage scheme. This is the default.

- **-h**, **--help**

  Displays a summary of command line options.

- **-v**, **--version**

  Displays version information.

## SEE ALSO

[mbsync(1)](/mbsync/1.md)

## AUTHOR

Written and maintained by Oswald Buddenhagen \<ossi@users.sf.net\>.