Feather Book Writing App

Feather is a writing app for people who want to write a book and want some peace to do it. You write in plain text with Markdown, your chapters sit in the sidebar, and everything you need to keep a story together is a few taps away. WRITE • A quiet editor with Markdown you see as you type: bold, italics, headings, quotes and lists • Chapters in a sidebar, with word counts, status and coloured labels • Two chapters side by side, handy for rewriting or comparing • Zen mode, so only your text is left • Find and replace across the whole manuscript • Your work is saved as you write, and after a crash Feather picks up where you left off NOTES ON YOUR TEXT • Notes attached to a sentence or passage, visible without cluttering your text • A checklist for each chapter and a notepad for the whole book • A story bible with characters, places, objects and organisations, with relationships and photos, always one click away from your text PROOFREAD • Spelling and grammar in Dutch, English, French, German, Spanish, Italian and Portuguese • A word list for each book; names from your story bible are ignored automatically • The repetition panel finds words that sit too close together, as well as filler words, adverbs and sentences that keep starting the same way SEND YOUR BOOK INTO THE WORLD • Export to Word, EPUB, PDF, Markdown or plain text • Pick a destination: general, Amazon KDP paperback, Amazon KDP Kindle or Apple Books • A PDF that looks like a printed book, with the right trim sizes and margins • Print with a choice of chapters, paper size and title page STAYS YOURS • Your book is an ordinary folder of text files. You can always open it in another app, keep it in iCloud Drive or put it on a backup disk • No account, no subscription and no ads. Feather collects no data • If you like: a small local server (off by default) that lets another app on your own Mac, such as an AI assistant, fetch a chapter and add proofreading notes to it. Nothing goes onto the internet Feather runs on Mac, iPad and iPhone and comes in Dutch and English.