Labs dominicreichl.com

For indie authors and self-publishing ebook designers

Preflight your EPUBs. Stop 1-star reviews.

EPUB Guard is a proposed local tool that analyzes your ebook layouts against known CSS rendering matrices for Kobo, Kindle, and Adobe Digital Editions. Find and resolve broken layouts before readers request refunds.

Request author accessSee how it works

Concept validation only. No payment, no commitment, no recurring newsletter.

Local-first directionPortable outputsBuilt around a specific workflowEarly access is free

Proposed workflow

Verify layout integrity before publishing.

We are validating a local preflight utility designed specifically to prevent layout breakages across Adobe ADE, Kindle, and Kobo rendering engines.

01

Deep styling AST analysis

Goes beyond basic EPUBCheck. We parse EPUB CSS and HTML to identify exact selectors and styles that trigger legacy device layout bugs.

02

100% Secure local execution

Drafts and manuscripts are inspected completely offline on your computer. Your creative work never touches our cloud servers.

03

Visual workaround suggestions

Explains exactly why a style fails on specific renderers and suggests Git-friendly, semantic CSS workarounds to preserve layout intent.

The honest status

This is a product decision, not a finished product.

The concept is being validated before development time is committed. Joining tells us the problem is relevant to you and gives you first access if the evidence supports a build.

  • You will not be charged.
  • Your email is only used for this experiment.
  • You can leave the list at any time.

Before you decide

Questions, answered clearly.

The current scope, privacy model, and next step without launch-day promises.

Is EPUB Guard available to download now?

No. This is a validation page for a proposed tool. Joining the waitlist helps us verify willingness-to-pay and interest before writing production code.

Why is on-device parsing important?

Unpublished manuscripts are valuable intellectual property. By running the preflight engine completely locally, you maintain absolute control over your files.

What happens when I request access?

Your email is recorded for this experiment only. You will receive one relevant update or beta invitation if the concept moves forward.

Early access

Want to prevent EPUB layout breakages?

Request early access and lock in the €29 preflight license. Your feedback will help define the minimum viable preflight suite.