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.
HTMLZ is a ZIP archive containing HTML files and resources, used as an intermediate format for ebook conversion.
FreeFileConvert uses tuned encoding for RB to HTMLZ conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload RB files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized HTMLZ results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent HTMLZ audio with dependable progress tracking.
HTMLZ bundles HTML, CSS, images, and metadata into a single archive for easy ebook processing.
Upload your ebook file in the RB format from your device, Dropbox, or Google Drive.
Select HTMLZ as the output format and click Convert. Adjust optional settings if needed.
Download the converted ebook file. Each file stays available for up to 5 downloads.