Open Kindle and Mobipocket (.mobi) books directly in your browser - completely free, no Kindle device or app needed. The book opens with its cover and chapters, and you can search the text, jump to any page, listen with read-aloud, bookmark your spot, and export as TXT or HTML. Have other ebook formats? Try our EPUB Viewer, PDF Viewer, DOCX Viewer, or browse all file viewers.
or click to browse - works without a Kindle
Drag and drop your .mobi, .prc, or DRM-free .azw file onto the upload area, or click to browse. The book is decoded locally in your browser - up to 200 MB, nothing is uploaded.
The book opens with its cover, title, and author, formatted like a proper reading app. A chapter outline appears in the sidebar, internal links work, embedded images display in place, and sepia and night themes plus adjustable font size keep long reads comfortable.
Search the whole book with highlighted matches, jump to any page number, listen with read-aloud, bookmark positions, and export the text as TXT or HTML - or extract every embedded image as a ZIP archive.
A built-in Mobipocket engine: PalmDOC decompression, metadata, cover art, embedded images, and internal links - all in your browser.
An automatic table of contents built from the book's headings - click any chapter to jump straight there.
Find any phrase with highlighted matches and prev/next navigation across the whole book.
Built-in text-to-speech with selectable voice, speed, and pitch - an audiobook-style experience for any MOBI book.
The viewer remembers your position in each book, and manual bookmarks let you mark and revisit key passages.
Type a page number to jump there instantly, with pages estimated from the book's word count.
Convert the book to plain text or a standalone web page - both generated locally in your browser.
Pull every illustration and photo out of the book at original quality as a downloadable ZIP archive.
All decoding happens in your browser. Books never leave your device - your library stays yours.
MOBI is the Mobipocket ebook format that Amazon adopted for the early Kindle. A .mobi file packs the book text (usually LZ77-compressed), images, and metadata into a single PalmDOC database - the same structure behind .prc and classic .azw files. Although Amazon has moved on to newer formats, millions of books from Project Gutenberg, publisher stores, and personal libraries still circulate as MOBI, which is why a browser-based MOBI reader remains so useful.
This viewer decodes the format natively in your browser: it unpacks the database records, decompresses the text, reads the title, author, and cover from the metadata, resolves embedded images, and wires up the book's internal links - no Kindle, no conversion step, no upload.
Classic .azw is MOBI with Amazon branding and opens here when DRM-free. AZW3 (KF8) is a newer container with richer formatting - this viewer detects it and points you to a conversion path. KFX is Amazon's current locked format that only Kindle apps read. For converting between formats, the free Calibre desktop app is the standard tool; convert to EPUB and our EPUB Viewer gives you the same reading experience as this page.
For modern ebooks use the EPUB Viewer, for fixed-layout books the PDF Viewer, and for manuscripts the DOCX Viewer or ODT Viewer. The full collection is on the file viewers page.
Upload your .mobi file here and read it directly in your browser - no Kindle, no Amazon account, no software install. The book opens with its cover, chapters, and images, plus search, bookmarks, and read-aloud. Works on Windows, Mac, Linux, Chromebooks, and mobile.
MOBI is the Mobipocket ebook format that Amazon adopted for early Kindle devices. A .mobi file packs the book text (usually LZ77-compressed), images, and metadata into a PalmDOC database. Amazon has since moved to AZW3/KF8 and KFX, but millions of books still circulate as .mobi files.
DRM-free .azw files in the classic MOBI format open fine. AZW3 (KF8) is a newer container this viewer detects but does not decode yet - convert it to EPUB with the free Calibre app and use our EPUB Viewer, which offers the same reading features.
Books bought from the Kindle store are locked with Amazon DRM, which no standard reader can open - that is a property of the file, not of this viewer. Only DRM-free books, such as those from Project Gutenberg, publisher direct sales, or your own conversions, can be read here.
The free Calibre desktop app converts DRM-free MOBI files to EPUB, PDF, and most other ebook formats. For quick text reuse, this viewer exports the book as TXT or HTML directly in your browser.
Yes. The book is decoded locally in your browser using JavaScript - it is never uploaded to our servers. Your library stays on your device.
Yes. Click the speaker button to listen using your browser's built-in text-to-speech voices, with adjustable voice, speed, and pitch. Click any paragraph while listening to jump there - a free audiobook-style experience for any MOBI book.
Yes. The viewer saves your position for each book locally in your browser, and a resume banner takes you right back when you reopen the same file. Manual bookmarks let you mark additional spots. Still having trouble? Please contact us and we'll be happy to help!