HTMLZ to RTF Converter

Convert HTMLZ (Zipped HTML e-book) files to RTF online, for free, with nothing to install.

To convert HTMLZ to RTF, select or drop your .htmlz file above, check that RTF is chosen as the output, and click Convert. This conversion runs on our server, and your files are deleted 72 hours later.

What is a HTMLZ file?

HTMLZ – Zipped HTML e-book. HTMLZ is a ZIP of one HTML file with its pictures and style sheet, an e-book format that calibre makes and reads.

HTMLZ Converter →

What is an RTF file?

RTF – Rich Text Format document. RTF (Rich Text Format) is a plain text format with formatting codes. Almost every word processor reads it, which made it the usual way to exchange formatted text; it has no real support for modern features.

RTF Converter →

How to convert HTMLZ to RTF

  1. Click Select File, or drop your .htmlz files anywhere on this page. You can add several at once.
  2. Check that RTF is chosen as the output format. On this page it is picked for you.
  3. Click Convert. When a file has to go to our server, the button says Upload and convert instead.
  4. Click Download next to each file when it's done.

HTMLZ vs RTF: how they compare

HTMLZRTF
LayoutFlowing textFlowing text
EditableYes, in a text editorYes
Created bycalibre, 2010Microsoft, 1987
Best forPutting an e-book on a web pageExchanging formatted text between different programs

Good to know

  • The HTMLZ e-book is converted by calibre. Copy-protected (DRM) e-books cannot be converted: ConvertKitty does not remove DRM, so use books you have bought without it or that are free of it.
  • Only the text is kept: pictures, fonts and the table of contents are not.
  • The RTF is made so that word processors can edit it.

Frequently asked questions

Is converting HTMLZ to RTF free?

Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.

Are my HTMLZ files uploaded anywhere?

This conversion runs on our server, because reading a HTMLZ file needs calibre, which does not run in a browser. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion. The server has no internet access while it works on your file.

How large can the HTMLZ file be?

Up to 1 GB per file. This conversion runs on our server, which accepts files up to that size.

Will the RTF look the same as the HTMLZ?

Only the text is kept: pictures, fonts and the table of contents are not.

Can I convert several HTMLZ files at once?

Yes. Add as many files as you like; they are converted one after another, and each one gets its own Download button.

Convert HTMLZ to other formats

Convert other files to RTF

All e-book formats

Updated