CHM to FB2 - Convert ebook online
Conversion Results:
| # | Output File | Source File | Action |
|---|
How to convert CHM to FB2:
1. Click the "Choose Files" button to select multiple files on your computer or click the "URL" button to choose an online file from URL, Google Drive or Dropbox.
2. Set ebook conversion options include: base font size, embed fonts, page margin, metadata and whether to remove the first image which is useful if the input document has a cover image that is not identified as a cover. Choose a target ebook format. The target ebook format can be AZW3, EPUB, DOCX, FB2, HTML, OEB, LIT, LRF, MOBI, PDF, RTF, SNB, TCR, TXT, etc.
3. Click the "Convert Now!" button to start batch conversion. The output files will be listed in the "Conversion Results" section. Click icon to show file QR code or save file to cloud storage services such as Google Drive or Dropbox.
CHM vs FB2:
| Name | CHM | FB2 |
| Full name | Microsoft Compiled HTML Help | FictionBook Ebook format |
| File extension | .chm | fb2, fb2.zip |
| MIME | application/vnd.ms-htmlhelp | application/x-fictionbook+xml |
| Developed by | Microsoft | Dmitry Gribov |
| Type of format | Document file format | Ebook file format |
| Introduction | Microsoft Compiled HTML Help is a Microsoft proprietary online help format, consisting of a collection of HTML pages, an index and other navigation tools. The files are compressed and deployed in a binary format with the extension .CHM, for Compiled HTML. The format is often used for software documentation. | FictionBook is an open XML-based e-book format which originated and gained popularity in Russia. FictionBook files have the .fb2 filename extension. The FictionBook format does not specify the appearance of a document; instead, it describes its structure. For example, there are special tags for epigraphs, verses and quotations. |
| Technical details | Help is delivered as a binary file with the .chm extension. It contains a set of HTML files, a hyperlinked table of contents, and an index file. The file format has been reverse-engineered and documentation of it is freely available. CHM files support the following features: data compression, built-in search engine, ability to merge multiple .chm help files, extended character support. | In contrast to other eBook formats (e.g. ePub), a FictionBook document consists of a single XML file. Images are converted to Base64 and reside inside the |
| Associated programs | Sumatra PDF, HTML Help Workshop | FBReader, AlReader, Haali Reader, STDU Viewer, CoolReader, Okular, Ectaco jetBooks. |
| Sample file | sample.chm | sample.fb2 |
| Wikipedia | CHM on Wikipedia | FB2 on Wikipedia |