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Convert RB to PMLZ
Online & free tool to convert RB files to PMLZ

1) Input file

Choose source file(s) to convert:

0 of 5 files added (up to 1000 MB combined)

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) File URL

Choose file URL to convert:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) Cloud Service

Choose a cloud service provider:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.
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RB

Rosebud Profile

The .rb extension is used for many formats which include definition files based on the Fuzzy rule, eBook files of the Rocket Edition, class files of Ruby on Rails, project files of REALbasic and the profile configuration files of Rosebud. Other versions of Ruby which are also called gems include Mongrel, Capistrano and Ruby on Rails.
PMLZ

Zipped Palm Markup Language File

Zipped Palm Markup Language File

Trusted conversion quality

FreeFileConvert uses tuned encoding for RB to PMLZ conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.

Seamless workflow

Upload RB files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized PMLZ results on any device you rely on.

Batch support for teams

Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent PMLZ audio with dependable progress tracking.

About PMLZ

How to open PMLZ files

eReader

How to convert RB to PMLZ

STEP 1

Upload your ebook file in the RB format from your device, Dropbox, or Google Drive.

STEP 2

Select PMLZ as the output format and click Convert. Adjust optional settings if needed.

STEP 3

Download the converted ebook file. Each file stays available for up to 5 downloads.

More RB and PMLZ options

Convert other files to PMLZ

Explore popular source formats that convert beautifully into PMLZ.

Convert RB to other formats

Need a different output? These conversions transform RB into other widely used formats.

Your data, our priority

  • 256-bit SSL encrypted uploads and downloads
  • Automatic file deletion shortly after conversion completes
  • Reliable global infrastructure for consistent performance