CHM Reader: Offline & PDF

Open and read CHM files on iPhone and iPad with nested contents, encoding controls, bookmarks, full-text search, and PDF export.

CHM Reader is a modern reader for technical manuals, offline help files, and archived reference material. No account is required—choose a file and read it directly on your iPhone or iPad.

RELIABLE CHM PARSING

• Import CHM files from Files, iCloud Drive, and other document providers • Preserve nested contents, the default page, images, tables, code, and internal links • Detect common legacy encodings used by Simplified Chinese, Traditional Chinese, Japanese, Korean, Western, and Cyrillic documents • Change the encoding and reparse an individual document if text appears garbled

COMFORTABLE READING

• Restyle old or desktop-oriented pages for a cleaner mobile layout • Choose reading themes, including Dark Mode • Adjust typeface, text size, line spacing, and paragraph spacing • Keep your reading position, progress, history, and bookmarks • Find information with nested contents and full-text search

PDF EXPORT

Convert the current chapter or the entire document to a paginated PDF, then save, print, or share it with the system share sheet.

LOCAL AND PRIVATE

Parsing, reading, search, and PDF conversion happen locally on your device. The app requires no sign-in and contains no ads, analytics SDKs, or tracking code. Document scripts, remote resources, and external web links are blocked.

FREE USE AND LIFETIME UNLOCK

You can fully parse 5 different CHM files for free. Parsing a 6th new file requires a one-time Lifetime Unlock purchase; this is not a subscription. Deleting imported files does not reset the lifetime count. Eligible purchases support Family Sharing and can be restored.