Convert EPUB to CHM Online — Free
Fast, free EPUB to CHM converter. No registration required.
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How to Convert
Upload your .epub file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .chm file when it's ready.
What is EPUB?
EPUB is the most widely supported ebook format. It supports reflowable text that adapts to different screen sizes, making it ideal for e-readers.
Format Details
- Full Name
- Electronic Publication
- Extension
- .epub
Key Features
- Reflowable text
- E-reader standard
- DRM support
- Multimedia
What is CHM?
CHM (Compiled HTML Help) is Microsoft's proprietary help file format introduced with Windows 98. It compiles HTML pages, images, and an index into a single compressed archive viewed with the Windows Help viewer.
Format Details
- Full Name
- Compiled HTML Help
- Extension
- .chm
Key Features
- Compiled HTML
- Search index
- Table of contents
- Windows Help viewer
EPUB vs CHM
| Feature | EPUB | CHM |
|---|---|---|
| Full Name | Electronic Publication | Compiled HTML Help |
| Extension | .epub | .chm |
| Best For | Reflowable text | Compiled HTML |