Convert Word to EPUB Online - Create Ebooks from Word
Transform Word documents into portable ebook format with preserved formatting.
Drop up to 50 Word files at once — no install, no sign-up required.
Drop Word Files Here
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How it works
- 1 · Drop your files
Drag & drop or choose Word files. No account required—paid plans unlock bigger batches, higher limits, and priority queues.
- 2 · We convert securely
Processed on our dedicated servers. Encrypted in transit & at rest. Heading structure, images, and formatting are preserved. We never store filenames—only file types & sizes for accounting.
- 3 · Download & auto-delete
Grab your EPUB files in seconds. Files delete automatically after 1 hour. Delete anytime after downloading with one click.
DOCX is Microsoft's modern Word document format based on Office Open XML (OOXML), standardized as ISO/IEC 29500. Introduced in Office 2007, DOCX stores content as compressed XML files inside a ZIP container, supporting rich text formatting, embedded media, styles, templates, and change tracking. Unlike the legacy binary DOC format, DOCX is more compact, less prone to corruption, and easier for third-party applications to parse.
Learn more: Office Open XML on Wikipedia
DOCX is the standard for collaborative document editing and remains fully compatible with Microsoft Word, Google Docs, LibreOffice, and most document processors. For final distribution or archival, consider converting to PDF.
EPUB (Electronic Publication) is an open ebook standard developed by the International Digital Publishing Forum (IDPF), now part of the W3C. First released in 2007 as a successor to Open eBook, EPUB has become the most widely supported ebook format. EPUB files are ZIP archives containing HTML/XHTML content, CSS styling, images, and metadata organized according to the EPUB specification.
Learn more: EPUB on Wikipedia
EPUB's key feature is reflowable content—text automatically adapts to different screen sizes, making it ideal for e-readers, tablets, and phones. The format supports embedded fonts, multimedia (in EPUB 3), and accessibility features. Most e-readers except Amazon Kindle natively support EPUB.
Frequently Asked Questions
What is DOCX format?
Why convert DOCX to EPUB?
What is preserved during conversion?
Does the conversion preserve images?
Yes. Embedded images in your DOCX are extracted and included in the EPUB. Images are preserved at their original resolution. Very large images may be optimized to keep the EPUB file size reasonable.
Will headings become chapters?
What EPUB version is generated?
How large can my DOCX files be?
Can I convert multiple DOCX files at once?
What are the limits for this converter?
| Tier | Max File Size | Max Files/Batch | Parallel Processing |
|---|---|---|---|
| Guest/Free | 50 MB | 50 files | 3 at once |
| Pro | 1024 MB | 1000 files | 6 at once |
Note: File size limits are specific to this converter. Batch and parallel processing limits apply to all documents converters site-wide. See all converter limits →
How are credits calculated for this conversion?
Cost: 1 credit per 5 MB
How it works:
- Files up to 5 MB: 1 credit
- 6-10 MB: 2 credits
- 11-15 MB: 3 credits
- 16-20 MB: 4 credits
Example: A 5 MB file = 1 credit. A 95 MB file = 19 credits.
Why per-megabyte? Larger files require more resources (processing, bandwidth, storage).
What are my daily and monthly credit limits?
Credit allocations vary by account tier:
| Tier | Daily Limit | Monthly Limit |
|---|---|---|
| Guest | 100 credits/day | — |
| Free | 100 credits/day | — |
| Pro | — | 12,000 credits/month |
Daily credits (Guest & Free tiers) reset every day at midnight UTC. Monthly credits (Pro) reset on your billing cycle date.
Note: With 1 credit per 5 MB, a typical document costs 1 credit. Pro users can convert 12000 documents per month.
Answers at a Glance
Quick answers to common questions.
- Are my files secure?
- How long do you keep my files?
- What metadata do you keep?
- What happens after I drop a file?
- Why are conversions so fast?
- How do you measure performance?
- What are the exact limits for each plan?
- Can I process files in bulk?
- Why did my file fail to convert?
- Do you use my files to train AI?
What's New in Word to EPUB
Latest improvements to this converter
Initial release of DOCX to EPUB converter for high-fidelity Word to ebook conversion.
Need to get more done? Pro starts from $5.
No subscription required.