Prisment – Local-first doc workspace (Markdown, OpenAPI, Mermaid)

Prisment launched as a free, local-first document workspace that positions itself as a verification layer between human intent and AI-generated software, letting users open an entire project folder and review AI-drafted plans, APIs and diagrams without an account. Prisment reads and renders Markdown, OpenAPI specs and Mermaid diagrams locally in browser memory, writes edits back to the same files, and carries team review comments through Git or synced cloud folders such as OneDrive, Google Drive and Dropbox rather than a server. The tool mounts folders directly in its desktop app and Chromium browsers, while Safari and Firefox users import folders into a browser-local copy, and it exports approved work as an HTML document, linked documentation site or PDF.

Prisment is a free, local-first workspace — the verification layer between human intent and AI-generated software. Open your whole project folder, review what your AI drafted, decide what gets built and plan the work. No account, and your files stay on your device. Use it alone with your AI agent. Share only when you want to. AI writes code faster than teams can validate architectural intent. When the plan is unclear, each new prompt can pull the build in a different direction. Review the draft design and architecture, set the boundaries, and record your decisions in the files. Settle the solution and the timeline in Plans and Notes. Then give your AI tool the agreed plan to write code with pinpoint accuracy. Your vision guides the work. Your decisions shape accurate code. Agreed Plan Scope & APIs defined Boundaries locked Architecture reviewed Timeline set Exact Spec AI Coding Agent Accurate // Implemented strictly to agreed plan See an example project folder An example project: the documents behind the decisions docs/ 01-product/ — vision, scope, users 02-architecture/ — systems, APIs, data 03-design/ — screens, flows, diagrams 04-planning/ — phases, costs, roadmap AGENTS.md — tells your agent where the decisions live Your folder can look different. What matters is keeping the agreed requirements and design where your agent can read them. YOUR WHOLE PROJECT FOLDER Open your entire project folder in one step Choose the folder your AI agent writes to and every document, API spec, diagram and picture inside it opens in one workspace, with a file tree, working links between files and changes shown as they are saved. Prisment reads the folder where it is, on your own computer, and your files stay there. Open it where it is In the desktop app, Chrome, Edge or another Chromium browser, pick the folder once and Prisment mounts it. Your edits are written back to the same files. Safari and Firefox too Use Import Folder in the Files sidebar to bring a folder’s supported files into a browser workspace. They are copied into this browser on your device, never to a server. Stays in step with your agent When your agent saves a file in the folder, Prisment picks up the change, so you review each draft as it lands. Review with your team. Carried by Git or your trusted cloud. Comment on a passage, decide each point and approve the exact versions you read. The review is saved as files in your project folder, so Git or your team’s synced cloud OneDrive, Google Drive, Dropbox carries it through local folder sync — no server, no account, no share link. Comment on the page Select words in a rendered document, table or diagram. Suggest a change, flag an issue or mark it reviewed. Only the person who started the review decides and approves. Git or your trusted cloud Commit and push through Git, or keep the project in a local folder synced by OneDrive, Google Drive or Dropbox. Colleagues open the folder in Prisment and reply — carried by the storage your team already trusts. GitHubOneDriveGoogle DriveDropbox Commit without leaving In the desktop app, Source Control stages, commits, pushes, pulls and clones with your own git. In a browser it reads the repository without changing it. Everything above works for one person and their AI agent, and sharing is your choice. When you want to show the work to a client, investor or team, give them a clear version: one interactive document, a linked documentation site or a PDF for the meeting. Give the team a plan they can use. Share the decisions with the files behind them. Export a readable HTML document, a linked documentation site, or a PDF when the conversation needs a handout. Prisment reads and renders your documents locally. No document upload or account is needed. You choose the files to open, the folders to connect and what to share. Local document processing Markdown parsing, diagram rendering, and themes run locally in browser memory. Your approved storage Open a local folder in the desktop app or browser. Sync reviews and plans via your company’s existing GitHub, OneDrive, or Google Drive through local folder sync — with zero new cloud silos. GitHubOneDriveGoogle DriveDropbox You control sharing Documents stay local until you choose to export or share them. Open a whole project folder in the desktop app or a Chromium browser, or start with a single document in any browser. Review the next AI draft with no account, and your files stay on your device.