ButterDocs is a word processor for writers with notes, branch drafts, and opt-in AI. Free for 3 documents; paid plans from $10/month. See features and pricing.
Researched and fact-checked by Bartu Cavusoglu · Updated October 26, 2026
ButterDocs is a word processor built for writers who need more than a single page that scrolls up and down. It combines notes, research, outlining, drafting, and collaboration in one app, with AI features that are optional. The company positions it as a replacement for Google Docs for writing that involves multiple drafts, editors, and sources.
The product comes from Arc Studio Labs, Inc. and, according to its site, earned the number one Product Hunt spot of the day for 2/21. The About page frames the idea as writing's version of GitHub for developers and Figma for designers, aimed at problems such as context switching, suggestion overload, and rogue edits.
Writing in ButterDocs starts with structure. A draft is organized in blocks that can be rearranged and written within, and a Board serves as a digital whiteboard for ideas, resources, and outline. Notes and research appear next to the text, so writers do not need extra browser tabs. Stash holds cut text, and Alternates keep several versions of a block.
Version control runs through Snapshots, which are created automatically or manually, and through unlimited undo for any past edit. For collaboration, contributors can work on branch drafts privately, and the owner reviews them side by side with the main draft before merging. The app runs in desktop and mobile browsers and as a desktop download.
The planning and drafting tools include the Board, blocks, Alternates, Notes, Stash, and an AI assistant. The assistant can run research inside the document, suggest ideas, and speed up proofreading. The company states that all AI features are 100% opt-in and that it believes AI should help writers rather than write for them.
The collaboration and focus tools cover real-time presence that shows who is viewing and typing, branch drafts, and merging. Writers also get Command-K shortcuts, a formatting bar that appears on demand, Markdown, Focus Mode, a timer for writing sprints, Nudge alerts, and dark mode. On-premises hosting is available for organizations that want data on their own servers.
ButterDocs is a word processor for writers that brings notes, research, outlining, drafting, version control, and collaboration into one app. It is made by Arc Studio Labs, Inc. and is positioned as an alternative to Google Docs. AI assistance is available but optional.
The site lists $10 per month or $60 per year, and students are listed as free. Early-access Professional pricing is $100 per year for one user, listed at $333, and Team pricing is $1000 per year, listed at $3333. Discounts of 30% to 70% apply to early signups.
Yes. Anyone can create up to 3 documents for free without a credit card, and paid plans include a 7-day free trial. The Team plan offers a 3-month free pilot.
The site targets students and academics, fiction writers, content writers, marketing teams, lawyers, and other writers. It suits people who manage research and outlines alongside their drafts or who write with several collaborators.
Yes. The AI assistant can do research inside a document, offer advice and ideas, and speed up proofreading. The company says all AI features are 100% opt-in and that AI should help writers rather than write for them.
The sources name Zotero, which students and academics can use to import references. Apple and Google sign-in are also supported. No other integrations are listed.
The site says ButterDocs works in desktop or mobile browsers and as a downloadable desktop app, and that it works online or offline.
The Team plan offers unlimited users for a limited time, user permissions, and dedicated email and call support. On-premises hosting and advanced security are also available. Collaborators can be invited into documents on any plan.