Folio Writer
Folio Writer app icon New in 1.10 — track changes like Word, your Folio Cloud projects in the app, nine new templates →

The writing studio for
scholarly manuscripts, books & novels.

Draft anything long — a paper, a book, a novel — the way you actually think about it: a binder of sections you outline, rearrange, and fold into a finished draft. Everything stays as plain text you own — portable Markdown and Typst files, on disk, forever.

macOS · iPhone · iPad · any browser — your files, everywhere, no lock-in.
Folio Writer: the Markdown editor beside a live typeset preview

Built for the way scholars write

Not a text box. A studio — with the structure, citations, and output a manuscript needs, on top of plain files.

☁️

Folio Cloud — write in the browser

Open and share a .folio project at cloud.foliowriter.app and edit it together in real time — no install, optionally end-to-end encrypted — then download it back, byte-compatible.

Open Folio Cloud →

📥

Import from Scrivener

Open a .scriv project and rebuild it inside Folio — the full binder hierarchy, each document converted from RTF to Markdown, with synopses, labels, and statuses carried across. Free.

📄

Preview as PDF

Render the current document or the whole manuscript through the real PDF engine and proof the actual pages before you compile — with a flag when the text has moved on since the last render.

📊

Diagrams in the preview

Fenced mermaid code blocks render as flowcharts, sequence diagrams, and more — right in the live preview, fully offline.

🕸️

Graph view

See how documents link — now with directional arrows and nodes colored by their binder folder, so chapters and sections read as clusters at a glance.

📚

A real binder

Sections, folders, and subdocuments you outline, drag to reorder, and lay out on a corkboard — Scrivener-style.

Guide →

🔖

Citations from BibTeX

Keep references as .bib files in the project. Insert by author and year; see them rendered inline as you write.

Guide →

Live math & markup

LaTeX math, Markdown, and citations render right in the editor — the syntax steps aside as you read, returns as you edit.

Guide →

📄

Compile anywhere

Export to PDF, Word, LaTeX, Typst, HTML, or Markdown through pandoc — title pages, figures, cross-references, bibliography.

Guide →

✍️

Markdown or Typst

Write in Markdown, or keep a document as a native Typst file — mix both in one project and compile them together.

Guide →

🏷️

Tags that organize themselves

Type #tags inline or add Keywords in the inspector — one index, colored capsules everywhere, a project-wide Tag Index, and tag: search filters.

Guide →

📓

A journal inside your draft

⌥⌘J opens today’s entry from your template. Entries file themselves by year, month, and day, and a calendar in the binder shows the days you wrote.

Guide →

⌨️

Command palette & split editor

⇧⌘P runs any command; ⌃⌘L jumps to any document. Put two documents side by side with ⌥⌘\.

🔁

Sync you can see

Conflict-safe merging, automatic version history synced to every device, and a live indicator under the binder: Saving… Syncing… Synced.

Guide →

☁️

Everywhere, safely

Sync across your Macs and the free iPhone and iPad apps through iCloud, Dropbox, or any Files location — conflict-safe.

Guide →

🕯️

Focus & composition

A distraction-free room, typewriter scrolling, sentence focus, and per-document, per-session word targets.

Guide →

🗂️

Snapshots & history

Take a snapshot before a heavy revision; browse, diff, and restore. Nothing you write is ever quietly lost.

Guide →

✏️

Suggested edits

Propose a change instead of making one — every suggestion carries its author, shown as a diff to accept or reject.

Guide →

📬

The Word round trip

Send co-authors real tracked changes in .docx; Import Review brings their edits back as proposals — nothing lands without your say-so.

Guide →

📐

31 project templates

Elsevier, IEEE, AGU, Tufte, and NSF proposal templates — plus a lab notebook, a Quarto data-analysis report, a response to reviewers, lecture notes, and a Typst cover letter. Each opens with a page explaining how it’s meant to be used.

Guide →

🔍

Zotero & comments

Pull references straight from your Zotero library, anchor comments to any passage — highlighted in the editor — and build a response-to-reviewers letter from them.

Guide →

Tracked changes rendered in the editor beside the Track Changes panel, with a margin comment for a co-author.
✏️

Track changes & comments

Switch to Suggesting and every edit becomes a reviewable insertion or deletion in your color, like Word — accept or reject each one, keep comments in the text where they sync, and export as native Word revisions or colored PDF markup.

Guide →

The corkboard arranged by status: To Do, In Progress, and Revised columns of index cards.
🗃️

Boards that work like boards

Arrange the corkboard by label or status and drag a card between columns to reassign it — the lane highlights as you drag, kanban-style.

Guide →

📊

Run code, place the figure

Execute Python or R cells right in the preview — matplotlib and ggplot figures render in place, via Quarto through the free Folio Helper.

Guide →

🧪

Analysis scripts

Keep Python and R scripts in Research: edit with full highlighting, Run, and every figure lands in a Figures folder named after its label.

Guide →

🔗

Cross-refs that match

Write @fig:x or @fig-x — Folio Writer converts to pandoc-crossref or Quarto to match the renderer you compile with, your code left untouched.

Guide →

Folio Writer Cloud

The private web studio.

Open a .folio in any browser and write together in real time — no install, nothing to configure. Share by link with edit or view access, protect links with a password, and download your project back, byte-compatible with the Mac and iPhone apps.

End-to-end encrypted projects go further: documents, binder, and research files are sealed in your browser with AES-256-GCM before upload, the key travels only inside your link, and the server stores ciphertext it cannot read. Typeset preview, PDF export, and search all run locally in the tab.

  • Live co-editing — shared cursors, edits in real time
  • End-to-end encryption — the server can’t read your work
  • Typeset preview & PDF — in the browser, even encrypted
  • Free to start — two projects on the house; Pro and Premium subscriptions unlock the Mac and iPhone apps too
  • Byte-compatible — the same .folio your Mac and iPad open

A look inside

One project, seen every way you work — and what each view unlocks: Free, Pro, and Premium.

The editor beside a live rendered preview
FreeEditor & live preview — Markdown, math, and citations render as you write.
The outline view of a manuscript with metadata columns
FreeOutline — the whole manuscript with synopsis, label, status, type, and word counts.
Sections laid out as index cards on a corkboard
FreeCorkboard — sections as index cards with status stamps; reorder by dragging.
The corkboard arranged into columns by status
ProBoards by status or label — group cards into columns to see what's left.
A BibTeX file beside a rendered bibliography
FreeBibTeX citations — @keys resolve inline and into a formatted reference list.
Grid tables and KaTeX math in the editor and preview
FreeTables & math — self-aligning grid tables and live KaTeX math.
The compile panel exporting to PDF, Word, LaTeX, and Typst
ProCompile & export — PDF, Word, LaTeX, Typst, EPUB, HTML, Markdown, Quarto.
A freeform canvas with notes, cards, shapes, and images
PremiumFreeform canvas — frames, mind maps, images, and connections.
A document in distraction-free composition mode
FreeComposition — a distraction-free room with focus, typewriter scrolling, and targets.

Free to write in. One purchase, forever.

No account needed, no add-ons. Pro and Premium are one-time in-app purchases on the Mac App Store — free to try for 7 days — and the iPhone and iPad apps are free for everyone. Start with Pro and move up whenever — Premium then costs just the difference ($19.99), credited automatically in the app. Prefer to subscribe? A Folio Cloud plan unlocks the same tier on the Mac and includes the web studio.

Folio Writer

Freeforever

Everything you need to write and organize a manuscript.

  • The editor, binder, outline, and grid corkboard
  • Wikilinks, backlinks, and BibTeX citations
  • Live math, Markdown, and single-document preview
  • Syntax Highlight, Style Check, and the visual table editor
  • Manuscript check, sprints, and writing targets
  • Revert to Saved and conflict-safe recovery — never gated
One-time

Folio Pro

$29.99once, not yearly

Finish and ship your manuscript. Buy it once and it stays unlocked — on every Mac you own, for every future version.

  • Compile & export — PDF, Word, LaTeX, Typst, EPUB, HTML, Quarto, and source
  • Executable Quarto code cells — Python & R figures generated from your data at every compile
  • The whole-manuscript preview
  • Corkboards arranged by label or status
  • Snapshots and version history, with a changes view
  • Revision passes, collections, the figure and name browsers, and read-aloud proofing
  • Word (.docx) import
  • Live sync with the free iPhone and iPad apps
One-time

Folio Premium

$49.99once, not yearly

The full studio — everything in Pro, plus the boards and everything that talks to other people and other tools. Pro owners upgrade for the difference ($19.99).

  • Everything in Folio Pro
  • The freeform canvas — frames, mind maps, and image export
  • Track changes — mark edits, review them with Show My Edits, accept or reject each one, and revert a snapshot or version as reviewable changes
  • Tracked changes in exports — native Word revisions, or colored insertions and deletions in PDF and HTML
  • The Word review round trip — tracked changes out, reviews back in
  • References from your Zotero library
  • The Response to Reviewers builder, and web capture into Research
  • The writing assistant — local model, Apple Intelligence, or your own account

Folio Writer for iPhone and iPad is completely free

Every feature, no trial, no purchase, no add-ons — and it syncs live with your unlocked Mac. Draft on the Mac, keep writing on the train, pick it up again on the iPad; a project is the same folder of plain Markdown files at both ends, in iCloud Drive or any Files location. Nothing to buy twice: the one-time Mac unlock covers the whole setup.

Folio Writer Cloud one subscription — the web studio, the Mac, and the iPhone

Write in any browser, share by link, co-edit live — end-to-end encryption on every plan, including Free. Plans differ in room: how many projects you keep on the server, and how much they may hold. A Pro or Premium subscription also unlocks that tier in Folio Writer for Mac (Mac App Store edition) and on iPhone and iPad, so you can subscribe instead of buying once. Subscribe in the apps through the App Store today; web checkout opens soon. Annual billing is ten months for the year.

Free

$0
forever
2 projects · 50 MB

Standard web checkout soon

$2/month
or $20 a year · web only
30 projects · 2 GB

Pro App Store

$4.99/month
or $49.99 a year · unlocks Folio Pro on the Mac
100 projects · 6 GB

Premium App Store

$9.99/month
or $99.99 a year · unlocks Folio Premium on the Mac
Unlimited projects · unlimited storage
fair use 50 GB

Every plan — Free included — has live co-editing, passworded links, byte-compatible downloads, and in-browser typeset preview & PDF for encrypted projects. Subscribe in Folio Writer for Mac or the free iPhone app, sign in to your Folio Cloud account there, and the web plan follows — one subscription, everywhere. Start free today → Prefer your own server? Self-host with Docker soon

The apps, one project format

The Mac app, its free tool helper, and the free iPhone and iPad apps — a project is the same folder of plain files everywhere.

macOS · Mac App Store

Folio Writer

  • Fully sandboxed and notarized, updated automatically
  • Compile with the tools already on your Mac — pandoc, LaTeX, Typst, Quarto — through the free Folio Helper
  • PDF, Word, LaTeX, Typst, EPUB, HTML, Markdown
  • Free to write in; Pro and Premium as one-time purchases or a Folio Cloud subscription
macOS · Free download

Folio Helper

  • A tiny free companion for the Mac App Store edition
  • Lets sandboxed Folio Writer run your installed typesetting tools — pandoc, pandoc-crossref, LaTeX, Typst, Quarto, and the Claude CLI
  • Runs only when Folio Writer asks, only a fixed list of tools
  • Download & installation guide →
iPhone & iPad · App Store · Free

Folio Writer for iOS

  • Free — every feature, no trial, no purchase
  • Syncs live with your unlocked Mac; opens the same projects byte-for-byte
  • Draft with a Markdown key bar, cite from BibTeX, preview with math
  • The full binder: reorder, snapshot, search, and organize on the go
  • Compiling stays on the Mac; your writing always syncs back

Follow along

Development notes, tips, and release news — @foliowriterapp on X.

Feed not loading? Open @foliowriterapp on X →

Your words are yours

Folio Writer collects nothing and tracks nobody. The apps need no account and run no analytics; your manuscripts live in plain files on your own disk and your own iCloud. Folio Cloud is optional, and its end-to-end encrypted projects are ciphertext the server cannot read. Read the privacy policy →