Resources Comparisons

Koberger vs Vellum: Which Book Formatting Tool Is Right for You?

A practical comparison of Koberger and Vellum for indie authors choosing between browser-based and Mac-native book formatting.

If you're looking for a way to turn your manuscript into a professional ebook or Print PDF, chances are you've come across both Koberger and Vellum.

The good news is that there isn't really a wrong choice here. Both platforms are designed to help authors produce professional-quality books for final KDP and retailer checks.

The biggest difference lies in how they work.

Vellum is a polished native application built exclusively for Mac. Koberger is a modern browser-based platform designed to work anywhere, on any device.

As an indie author myself, I've used Vellum for years and still consider it one of the best formatting tools available. Koberger wasn't created because Vellum is lacking. It was created because many authors want the same professional formatting experience without being tied to a particular operating system or computer.

At a Glance

Feature Koberger Vellum
Works on WindowsYesNo
Works on MacYesYes
Works in browserYesNo
Ebook exportsYesYes
Print PDF exportYesYes
Cloud-based projectsYesNo
Native desktop applicationNoYes
Ongoing platform updatesYesYes

What Vellum Does Well

Vellum has earned its reputation as one of the most respected formatting tools in self-publishing.

Its interface is elegant, responsive and incredibly easy to learn. Authors can import a manuscript, apply a style and produce professional-looking books in a remarkably short amount of time.

Because it is a native Mac application, Vellum feels fast and polished in day-to-day use. Many long-time indie authors have built their entire publishing workflow around it.

If you're a Mac user who prefers desktop software and likes having your projects stored locally, Vellum remains an outstanding choice.

What Koberger Does Well

Koberger takes a different approach.

Rather than being tied to a specific computer, Koberger lives in your browser. Whether you're using Windows, Mac or Linux, you can access your projects from anywhere without installing software or managing files between devices. If you are specifically wondering about Vellum for Windows, the short answer is that it does not run there at all, so a browser-based tool is the practical route on a PC.

For many authors, that flexibility becomes increasingly valuable as their catalog grows.

Books remain available in a single account, making it easy to revisit older titles, update front or back matter, refresh print files or prepare new editions without hunting through folders on a particular machine.

Koberger is designed to be more than a one-off formatting tool. It's intended to be a long-term home for your publishing projects. See the full book formatting features.

Choosing Between Desktop and Cloud-Based Software

In many ways, the decision comes down to whether you prefer desktop software or a cloud-based platform.

Desktop software gives you complete control over local files and allows you to work entirely offline.

Cloud-based software offers flexibility, accessibility and the ability to access your work wherever you happen to be.

Neither approach is inherently better. Many authors strongly prefer one or the other.

The important thing is choosing the workflow that best fits how you publish.

Choose Vellum If...

Vellum may be the right choice if:

  • You primarily use a Mac
  • You prefer native desktop applications
  • You want to work entirely offline
  • You prefer storing projects locally on your own machine
  • You already have an established workflow built around Mac software

Choose Koberger If...

Koberger may be the right choice if:

  • You use Windows, Linux or multiple devices
  • You prefer browser-based software
  • You want access to your projects from anywhere
  • You publish regularly and maintain multiple books
  • You like the idea of a platform that continues to evolve over time
  • You want your publishing projects organized in a single online workspace

Pricing and Ownership

Vellum and Koberger take different approaches to pricing.

Vellum is purchased outright and installed on your Mac.

Koberger is available through a subscription model that includes ongoing access to the platform, new features and future improvements. See current Koberger pricing.

Some authors prefer owning software outright. Others prefer a service that continues to evolve without needing to purchase major upgrades.

Neither model is objectively better. The right choice depends on how you prefer to invest in the tools that support your publishing business.

Final Verdict

Vellum remains one of the finest formatting tools available today and continues to be a well-deserved favorite among Mac-based indie authors.

Koberger isn't trying to replace Vellum for everyone.

Instead, it offers a modern alternative for authors who want professional formatting, cross-platform access and a cloud-based workflow that grows alongside their publishing catalog.

If you're a dedicated Mac user who loves desktop software, Vellum is still an excellent option.

If you want the flexibility to work from any device and keep your publishing projects available wherever you are, Koberger may be worth a closer look. For a wider view, our roundup of the best book formatting software compares both against Atticus, Reedsy, Scrivener and InDesign.

Frequently asked questions

Does Vellum work on Windows?

No. Vellum is a native macOS application, so it runs only on a Mac. Authors on Windows have to choose different software, buy Apple hardware, or rent a cloud Mac. Koberger runs in a browser, so the operating system does not decide it for you.

Is Koberger meant to replace Vellum?

Not exactly. Vellum remains one of the most respected formatting tools in self-publishing and many authors have built their whole workflow around it. Koberger was built so that authors can get a professional result without being tied to one operating system or one computer.

Can both produce files for KDP?

Yes. Both export ebook files and Print PDF interiors suitable for final checks with KDP and other retailers and print-on-demand services.

Where are my book projects stored?

Vellum keeps projects locally on your Mac. Koberger keeps them in your account, so the same book can be opened from another device without moving files around.

Format your book

Turn your manuscript into a finished book, free.

Import your Word file, choose a professional design, and preview every page of your ebook and print book in the browser. You only pay when you export the final files, so you can see exactly how your book will look before you spend anything.

  • Free to import, design, and preview
  • Validated EPUB and print-ready PDF
  • No Mac, no downloads, works on any device
Start formatting free

Why authors choose Koberger

Everything you need to publish, in one place.

Chapter designs, front and back matter, a live preview, and clean exports for KDP, IngramSpark, Apple Books, and Kobo. Format one book or a whole series from the same account.

Explore the features

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