Intelligent tools for ebook conversion and print book design

Whether you’re a self-publishing author or a professional book designer at a publishing house, Bookalope offers intelligent and simple tools that help you analyze, structure, and review your book manuscript, and convert it to ebook, a print-ready book, and other industry-standard formats.

For Authors

So you have finished your manuscript! Do you need help reviewing and fixing content, and converting your manuscript into an ebook or print-ready format? As easy as 1–2–3, Bookalope assists you with intelligent tools each step of the way. Your ebook will pass all industry standard validations and support vision-impaired accessibility, and your print-book will look simply beautiful.

Watch our video tutorials to learn how to use our Bookalope tools step by step!


After uploading your manuscript, Bookalope’s AI analyses, structures, and cleans up your manuscript.


Bookalope’s AI assists you with finalizing your manuscript’s structure, and highlights spelling, typographical, and other problems you can review and fix.


Finally, download your book in any of your chosen formats: EPUB, MOBI, PDF, InDesign, Word, etc. All ebooks validate and meet Accessibility requirements!

For Publishers

Whether you’re a freelancing book designer or work for a publishing house, the Bookalope tools help you be more efficient with your conversion workflow. From AI-assisted semantic structuring, detailed content checking, to conversion into various formats, our tools guarantee the quality of your final product. There are three different ways to access the Bookalope tools depending on your personal workflow and how closely you want to integrate the tools.


Use our web application to upload a book manuscript, and let Bookalope’s intelligent tools guide you through the analysis and conversion process. Watch our video tutorials to learn more!


If you use Adobe InDesign for your book design and conversion work, then our free Bookalope extension helps you to clean up and structure your manuscript, EPUB tagging included!


Got your own publishing tools and workflow set up already? Integrate Bookalope’s intelligent tools into your in-house workflow using our modern and free cloud service API.


Bookalope benefits: intelligent automation

Intelligent automation
Bookalope’s tools use Artificial Intelligence, in short AI, designed to assist with semantic structuring and cleaning up your manuscript’s content.

Bookalope benefits: supports many formats

Formats that fit your needs
Bookalope accepts and produces a variety of formats that meet your professional requirements and personal needs.

Bookalope benefits: Accessibility

Benefiting from its AI-assisted semantic structuring, Bookalope automatically produces ebooks that meet Accessibility requirements for assistive technologies.

Bookalope benefits: valid and correct output

Validation & Correctness
Incorporating tools like FlightDeck and ACE, Bookalope validates every ebook, ensuring that your books meet the highest industry standards.

Bookalope benefits: integration API

Cloud Service Integration
Our freely available cloud service API allows you to integrate Bookalope’s intelligent tools into your own workflow, thereby seamlessly improving it using modern cloud technology.

Bookalope benefits: Adobe InDesign support

Adobe InDesign Support
Bookalope integrates directly into Adobe InDesign with our open-source and freely available InDesign Extension.

Bookalope benefits: epub upgrade & fixes

EPUB upgrades & fixes
Bookalope imports ebooks in any EPUB format and version. Once analyzed, structured, and cleaned, Bookalope can then convert ebooks to the latest EPUB format, Accessibility included for free. Or, using our WYSIWYG import, Bookalope upgrades & fixes outdated and invalid ebooks automatically in just a few moments. Download a scripting example here!


Using the Bookalope tools is free! You pay for your book conversions only if you’re happy with the results. Please contact us for more details on the Subscription Plan or if you’d like to discuss individual changes to meet your workflow.

Basic Pro
Access to all tools using the website
Access to cloud API
Full use of extension for InDesign
Free test version of your book
Supported import formats
Supported export formats
  • Ebook
  • Kindle
  • Print-ready PDF
  • Ebook
  • Kindle
  • Print-ready PDF
  • InDesign IDML
  • Word
  • DocBook (more)
  • HTMLBook (more)
Basic Pro
Book Plan

Up to 5 book conversions:
US$59 each

5 to 10 book conversions:
US$49 each

Up to 5 book conversions:
US$79 each

5 to 10 book conversions:
US$59 each

Subscription Plan

Up to 50 book conversions
Per month, per license
One year commitment


Up to 200 book conversions
Per month, per license
One year commitment



I’m a seasoned software architect with over two decades of experience in computer science research and commercial software development. I’m also a passionate typophile and book lover, and I design print and ebooks in my spare time. I found that none of the existing software was useful, efficient, and intelligent enough for my needs, and so I decided to build my own tools. My name is Jens Tröger, welcome to Bookalope!


In addition to connecting with us through one of our social channels, you can always contact us directly via email or Slack:


April and May 2020. At this year’s Digital Publishing Summit we presented a talk/tutorial “Towards automating accessible ebooks” (Youtube), and we updated the Bookalope server with all the brand-new features we demoed!

February and March 2020. We shipped a wealth of new features, improvements, and fixes with a major version update in early March. One of the first to notice is a much flexible account signup. And: the Bookalope extension for InDesign is now available through Adobe Exchange!

January 2020. After a well-deserved hiatus at the end of last year, we’re back in full swing. We will release a major update to the server core tools in early February, which contains heaps of improvements to the document structuring, as well as a completely overhauled design for ebooks and print.

October 2019. We’ve published another blog post The need for intelligent tools, and are currently busy improving the document import to be more versatile around identifying the semantic structure components of a book.

September 2019. After the whirlwind that was Digital Book World we updated the server’s billing model, and alongside heaps of improvements the extension for InDesign.

August 2019. We have shipped the Bookalope extension for InDesign, and it’s available through Adobe Exchange. In its wake we improved some of the document import, particulalry for images.

July 2019. More niftification of the webapp’s Structure page, and fixes and improvements to document ingestion on the server side. We also started publishing How-To posts that show how to solve various conversion problems using the Bookalope tools.

June 2019. Our new extension for Adobe InDesign is nearly finished! Meanwhile, the latest beta version is available here as a free download.

May 2019. Revamped the Structure page for the webapp (oh it’s so much more productive now) and further improved and expanded the generated A11y support for ebooks. And these are only two big-ticket items…

March and April 2019. A busy couple of months: I joined a panel discussion at Ebookcraft about AI and publishing flows; added improvements to Bookalope’s cascading AI-assisted structure analysis; and Accessibility of generated ebooks is now more accurate and detailed.

February 2019. We have deployed our new cascading AI classifiers on Beta to enable a more flexible semantic structure analysis. Watch out for more announcements!

January 2019. Heaps of minor fixes to the server, and added our old and new Blog page again, so enjoy the reads!

December 2018. Enabled our new Cloud Functionality to automate upgrading and fixing of invalid Ebooks. Contact us for details!

November 2018. Joined PubU to speak about AI and publishing, and made some exciting connections.

September 2018. We’re beta-testing importing EPUB ebooks, where Bookalope now supports automatic upgrading of ebooks in obsoleted EPUB formats.

August 2018. Bookalope now flattens hand-drawn figures and graphics in a Word manuscript into bitmap images for final export.

May 2018. Today we’re launching our awesomely stylish new website, including a much polished set of Bookalope tools!

April 2018. We’re testing WYSIWYG conversion of your book: Bookalope maintains the original styling and does not structure your book’s content. It’s a simple way to convert your book, but as a result no semantic structure and Accessibility features are available.