HTMLZ Converter

Convert HTMLZ ebooks to AZW3, DOC, DOCX, EPUB and more online. Upload, convert, and download — no software required.

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What is HTMLZ ?

HTMLZ is Calibre's zipped HTML e-book: the book as one HTML file with its images and stylesheet in a ZIP archive.

HTMLZ format  ▶

Why convert HTMLZ files?

HTMLZ is Calibre's zipped HTML e-book. Readers do not open it. People convert in both directions:

Start converting your HTMLZ files now — it's fast, easy, and supports any output format you need.

How to convert HTMLZ files

  1. Upload your HTMLZ file
    Drag & drop your HTMLZ file, click 'Select Files' to upload from your device, or import directly from Dropbox, Google Drive, OneDrive, or paste a URL.
  2. Choose the output format
    Pick any supported format you want to convert to.
  3. Adjust settings (optional)
    If you like, tweak output options such as resolution, quality, or compression.
  4. Convert the file
    Click the 'Convert' button. The conversion takes only a few seconds.
  5. Download your converted file
    Download the converted file to your device, or save it directly to Google Drive, Dropbox, or OneDrive.