Atticus
Cross-platform writing-plus-formatting app (browser/PWA) aimed at indie authors who want Vellum-like output without needing a Mac. Strong for fiction interiors and print/ebook export; writing features are lighter than Sc…
Formatting & layout
Ebook and print interior formatters — from free browser tools to Mac-only premium apps.
7 tools
Calibre
Free ebook library manager and converter supporting many formats. Excellent for converting and tweaking EPUBs; the learning curve for advanced editing is real. Pair with Sigil if you need deeper HTML-level EPUB surgery.
Draft2Digital
Wide ebook (and print) aggregator that sends files to multiple retailers and libraries for a distribution commission. Includes automated formatting from Word. A common companion to KDP for authors who want Apple, Kobo, l…
Kindle Create
Amazon’s free formatter for Kindle ebooks and KDP paperbacks. Convenient if you are Amazon-first; output is oriented to KDP (including KPF), so authors going wide usually prefer EPUB-centric tools.
PressReady
Manuscript in → KDP-ready EPUB3 & print PDF out. Browser formatter for indie authors: import Markdown, plain text, or DOCX; set metadata; pick KDP trim (5×8 / 5.5×8.5 / 6×9) and theme; run preflight; download print PDF +…
Reedsy Studio
Free browser writing and formatting tool (formerly Reedsy Book Editor) with EPUB and print-ready PDF export, collaboration, and clean themes. Less customisation than Atticus or Vellum, but an excellent zero-cost starting…
Vellum
Mac-only book formatter prized for polished fiction interiors, styles, and device previews. You import a manuscript, style chapters, and generate retail ebooks plus print PDF. Not available on Windows — many Windows auth…