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.