Feature Details
Plain Text Input
Write your content in simple plain text format. No complex markup required.
Valid EPUB
Generate valid EPUB 3.2 files instantly with proper structure and metadata for accessibility.
No Installation
Browser-based tool that works offline as well. No software to install.
Live Layout Preview
See real-time layout changes across different device screens and orientations.
Responsive Design
Test typography, margins, and layouts on mobile, tablet, and desktop screen sizes instantly.
Visual Design Feedback
Immediate visual feedback for cover design, chapter breaks, and formatting choices.
Rapid Iteration
Avoid device round trips when testing responsive and interactive behaviours.
Integrated Scripting
Add extension libraries, custom build-time scripts and Reading System scripts.
Browser-Based Debugging
Use familiar developer tools for debugging and performance evaluation.
These samples will open in the app below
- 01 Family History Sample
- 02 Minimal Sample
- 03 Introduction to Markdown
- 04 Introduction to Textile
- 05 Introduction to Asciidoc
- 06 Introduction to LaTeX
- 07 Introduction to Fountain
- 08 Responsive Music Notation
- 09 Syntax Highlighting
- 10 Animation Samples
- 11 Build-time Transformation
- 12 Dynamic Content
- 13 Planting the SEED
- 01 Family History Sample
- 14 Digital Choir Resources
- 15 Diagnostic EPUB
- 02 Minimal Sample
- 03 Introduction to Markdown
- 04 Introduction to Textile
- 05 Introduction to Asciidoc
- 06 Introduction to LaTeX
- 07 Introduction to Fountain
- 08 Responsive Music Notation
- 09 Syntax Highlighting
- 10 Animation Samples
- 11 Build-time Transformation
- 12 Dynamic Content
- 13 Planting the SEED
- 16 Introduction to Org Mode