Convert.FAST

Convert EPUB to Word Online - Edit Your Ebooks in Word

Transform EPUB ebooks into editable Word documents with preserved formatting.

Drop up to 50 EPUBs at once — no install, no sign-up required.

Drop EPUB Files Here

25 MB per file Up to 50 files 3 parallel conversions 1 credit each

Encrypted EU Servers Auto-delete 1h

Median EPUB to Word time (last 10k jobs): 248ms

How it works

  1. 1 · Drop your files

    Drag & drop or choose EPUB files. No account required—paid plans unlock bigger batches, higher limits, and priority queues.

  2. 2 · We convert securely

    Processed on our dedicated servers. Encrypted in transit & at rest. Chapter structure, images, and formatting are preserved. We never store filenames—only file types & sizes for accounting.

  3. 3 · Download & auto-delete

    Grab your Word files in seconds. Files delete automatically after 1 hour. Delete anytime after downloading with one click.

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.

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.

Frequently Asked Questions

What is EPUB format?

EPUB (Electronic Publication) is an open ebook standard developed by the IDPF (now part of W3C). It's a reflowable format, meaning text adapts to different screen sizes. EPUB files are ZIP archives containing HTML, CSS, and images organized according to the EPUB specification.

Why convert EPUB to DOCX?

Editing. EPUB is designed for reading, not editing. Converting to DOCX lets you edit the content in Microsoft Word, Google Docs, or LibreOffice. This is useful for authors revising manuscripts, publishers making corrections, or researchers extracting quotes.

What is preserved during conversion?

Our converter preserves: chapter structure (converted to Word headings), embedded images, text formatting (bold, italic, etc.), and paragraph structure. Complex CSS styling may be simplified, and some EPUB-specific features (like embedded fonts) may not transfer exactly.

Can I convert DRM-protected EPUBs?

No. DRM-protected EPUB files (purchased from stores with copy protection) cannot be converted. You must remove DRM protection first using appropriate tools, or contact the publisher for a DRM-free version.

What EPUB versions are supported?

We support EPUB 2 and EPUB 3 formats. Both versions convert successfully, though some EPUB 3-specific features (like embedded audio/video or advanced interactivity) may not transfer to DOCX format.

Will the table of contents be preserved?

Chapter headings are converted to Word heading styles (H1, H2, etc.), which Word can use to generate a table of contents. The EPUB's navigation document (NCX/nav) structure is reflected in the heading hierarchy of the output DOCX.

How large can my EPUB files be?

File size limits depend on your plan: Guest: 25 MB, Free: 25 MB, Pro: 200 MB, Business: 1024 MB. Most ebooks are under 50 MB, so even free users can convert typical novels and textbooks.

Can I convert multiple EPUB files at once?

Yes-that's what we're built for. Drop up to 50 files at once. We process 3 conversions in parallel, so batches complete faster than sequential tools.

What are the limits for this converter?

TierMax File SizeMax Files/BatchParallel Processing
Free25 MB50 files3 at once
Pro200 MB200 files6 at once
Business1024 MB1000 files10 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 25 MB

How it works:

  • Files up to 25 MB: 1 credit (minimum)
  • 26-50 MB: 2 credits
  • 51-75 MB: 3 credits
  • 76-100 MB: 4 credits
  • Over 1000 MB: 40 credits (maximum cap)

Example: A 5 MB file = 1 credit. A 95 MB file = 4 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:

TierDaily LimitMonthly Limit
Free50 credits/day
Pro10,000 credits/month
Business30,000 credits/month

Daily credits (Free tier, including guests) reset every day at midnight UTC. Monthly credits (Pro & Business) reset on your billing cycle date.

Note: With 1 credit per 25 MB, a typical document costs 1 credit. Pro users can convert 10000 documents per month.

Choose Your Plan

Limits shown for EPUB to Word conversion. One subscription unlocks the entire Tools.FAST Network. Plans cover Convert.FAST, Compress.FAST, PDF.FAST (soon), and all future tools.

Monthly Annual 4 Months Free

Free

$0

For occasional personal use

  • 25 MB per file
  • 50 files per batch
  • 3 parallel conversions
  • 50 credits/day
  • Standard priority
  • Email support
Sign Up Free

No sign-up required. Create an account for your own credit pool.

Popular

Pro

$9 /month

For independent work

  • 200 MB per file
  • 200 files per batch
  • 6 parallel conversions
  • 10,000 credits/month across Tools.FAST
  • High priority
  • Email & chat support
  • One subscription for the entire Tools.FAST network

Business

$19 /month

1 seat

For production scale

  • 1 GB per file
  • 1000 files per batch
  • 10 parallel conversions
  • 30,000 credits/month across Tools.FAST
  • Add seats to invite team members
  • Highest priority
  • Priority email & chat support
  • One subscription for the entire Tools.FAST network

How Credits Work

  • Usually 1 credit per conversion. Exact cost shown before you start.
  • Credits refresh monthly on your billing cycle.
  • Unused credits roll over, capped at your plan's monthly amount.
  • One subscription, all sites. Works across Convert.FAST, Compress.FAST, and future tools.

What's New in EPUB to Word

Latest improvements to this converter

Last updated December 16, 2025
Dec 16, 2025

Initial release of EPUB to DOCX converter for high-fidelity ebook to Word conversion.