# Offlexity > Offlexity is a desktop AI file editor for Mac and Windows that edits Word, Excel, PowerPoint, PDF, Markdown, photos and more in one window, shows every change the AI makes on the page, and undoes it in one press Offlexity is made by Offlexity Limited in Auckland, New Zealand. It is a desktop app, not a website: files stay in the user's own folders and the app works offline. - Platforms: Mac with Apple silicon (M-series Macs, 2020 and later); Windows (Windows 10 and 11, 64-bit) - Edits: Word documents (.docx), Excel spreadsheets (.xlsx), PowerPoint decks (.pptx), PDF files (.pdf), Markdown and notes (.md), pictures, plain text and over 70 other text and code file types - AI inside the app: Claude, ChatGPT, GitHub Copilot, OpenCode, using the user's own subscription or API key - AI apps that can connect to it (MCP): Claude Desktop, Claude Code, Codex, Cursor, VS Code - Version history: every save of every file and folder is kept and credited to whoever made it (the user or the AI); changes are compared on the real page; "Undo this turn" reverts everything one AI request changed across every file - Price: the first month is free, no card needed; then a one-time purchase, with an early bird price on sale now of $30 for one computer, $50 for two or $60 for three (USD) - Good for: people who use ChatGPT, Claude or Copilot on Word, Excel, PowerPoint and PDF files and want to see and undo what the AI changed; anyone looking for a local file editor, a Microsoft Word, Excel or PowerPoint alternative, or an Adobe Acrobat alternative for everyday PDF editing ## Pages - [Home](https://offlexity.com/): what Offlexity is, a live playground of the app, pricing and questions - [Features](https://offlexity.com/features/): the Word, Excel, PowerPoint, PDF and Markdown editors, the AI assistant, and the version history - [Compare](https://offlexity.com/compare/): Offlexity compared with Microsoft Office, Adobe Acrobat and Google Docs - [Pricing](https://offlexity.com/pricing/): first month free, then a one-time purchase (early bird price on sale now) - [Download](https://offlexity.com/download/): Mac and Windows - [FAQ](https://offlexity.com/faq/): common questions - [Contact](https://offlexity.com/contact/): support, buying and feedback - [Privacy](https://offlexity.com/privacy/): what stays on the user's computer and what leaves ## For AI agents - [Every page in full](https://offlexity.com/llms-full.txt): the whole site as Markdown in one file - Markdown pages: request any page with `Accept: text/markdown`, or add `index.md` to its address, for example [https://offlexity.com/features/index.md](https://offlexity.com/features/index.md) - [Site facts as JSON](https://offlexity.com/agent/site.json): platforms, pricing, file types, assistants, questions and answers - [MCP server](https://offlexity.com/mcp): Streamable HTTP, read-only, no sign-in; tools get_overview, get_pricing, get_download_info, search_faq, get_page ([server card](https://offlexity.com/.well-known/mcp/server-card.json)) - [OpenAPI description](https://offlexity.com/openapi.json), [API catalog](https://offlexity.com/.well-known/api-catalog), [agent skill](https://offlexity.com/.well-known/agent-skills/index.json), [ARD catalog](https://offlexity.com/.well-known/ai-catalog.json) - In a browser, the pages register WebMCP tools (search_faq, get_pricing, get_page_markdown, open_page) ## How an AI edit works in Offlexity 1. Ask in plain words: Type the change the way you would say it to a colleague 2. AI reads and edits your files: The assistant reads the file first, then makes the change in the file itself, with no copies and no exports 3. Every change, in plain sight: The file as it was and the file as it is now, side by side 4. Keep it, or undo it in one press: Keep the change, or press Undo this turn to put every file back exactly as it was 5. Save a version: Give this point a name and save it, so you can always come back to it 6. See every version you saved: History lists each version you saved, open one to see exactly what changed in it ## Questions and answers ### What is Offlexity? Offlexity is a desktop AI file editor for Mac and Windows; Edit Word, Excel, PowerPoint, PDF, Markdown, photos and more in one window, yourself or with the AI you already use; Every change is shown on the page as it was and as it is now, so you can track what the AI did and undo it in one press ### What files can Offlexity open and edit? Word, Excel, PowerPoint, PDF, Markdown, pictures and over 70 other text and code file types ### Can I edit without any AI? Yes, you can still edit files the usual way, just like in Word, Excel or a PDF editor, even offline ### Can I use the AI subscription I already pay for? Yes, sign in with Claude, ChatGPT, GitHub Copilot or OpenCode inside Offlexity, or connect their apps like Claude Desktop, Codex or Cursor ### How much does Offlexity cost? Your first month of Offlexity is free on Mac and Windows, and no card is needed; After that it is a one-time purchase, and the early bird price is on sale now: $30 for one computer, $50 for two or $60 for three ### Does the version history use Git? No, Git can break inside synced folders like OneDrive, so Offlexity keeps its own history that stays safe when several people share a folder ### Where does the version history get saved? It is stored locally in the OFLX format, and saved to the cloud automatically if the folder is in cloud storage such as OneDrive or SharePoint ### Is Offlexity an alternative to Microsoft Word, Excel and PowerPoint? Yes, Offlexity opens and saves real .docx, .xlsx and .pptx files, so you can edit them without Microsoft Office and still send them to people who use it; You can also use both side by side, since your files stay in their own formats ### Can Offlexity replace Adobe Acrobat? For everyday PDF work, often yes: edit text, highlight, comment, fill forms, sign, split, merge, compress and convert PDFs to Word, Excel or PowerPoint; It does not cover every Acrobat feature, so try the ones you rely on during your free first month ### Are my files uploaded to the cloud? No, Offlexity is a local file editor and your files stay in your own folders; A file is only sent anywhere when you ask the AI assistant about it, and then only to the AI service you signed in with ### Does Offlexity work offline? Yes, editing, version history and comparing changes all work offline; Only the AI assistant needs an internet connection ### How does Offlexity show what the AI changed? After each request the changed files are listed, and each change is shown on the real page: Word as tracked changes, Excel cell by cell, PowerPoint slide by slide and PDF page by page; Keep it, or press Undo this turn to put every file back ### Can other AI apps edit my files through Offlexity? Yes, Claude Desktop, Claude Code, Codex, Cursor and VS Code can connect to Offlexity, and their changes land in the same version history as everything else ### Does it work with OneDrive and SharePoint folders? Yes, open a synced OneDrive or SharePoint folder and Offlexity saves into it safely, with the version history kept alongside your files ### Is there a subscription? No, a license is one payment and you keep it, with unlimited sessions and one year of updates; Each license covers one computer, Mac or Windows, and you can buy for two or three computers at once for less ### Which computers does Offlexity run on? Macs with Apple silicon (M1 and later) and 64-bit Windows 10 and 11 ## Contact info@offlexity.com