Your document and your privacy
Files and pasted text
Opening a file or pasting Markdown renders it in your browser. This app does not upload the text or filename. It saves the document and its revisions in this browser using IndexedDB, so you can reopen them later. Opening another document leaves the saved copy available on the homepage.
Saved documents and history
History is local to this browser profile and device. There is no account or cloud sync. View or delete individual revisions in History, remove a document there or on the homepage, or choose Clear all on the homepage to remove every saved document. Anyone using this browser profile can access saved documents. Samples are not saved.
Browser storage is not a backup: clearing site data removes it, private browsing usually removes it when the session ends, and the browser may remove it to reclaim space. Keep your original files. Updates are saved only when you or your agent explicitly open a finished version; the reader never watches your files.
Agent links
The agent API receives your text and returns a link with the document encoded after the #. The server application does not store the request body or resulting link. Opening the link saves its document in this browser’s history. This is a different flow from local file opening.
Anyone with that link can decode and read the document. It is not encryption and cannot be revoked. The link contains a fixed snapshot; this browser may show a newer saved revision when the link carries the same document ID. Deleting saved documents in the app does not revoke an encoded link. The full URL can remain in browser history, sync, clipboard or chat history. The fragment is not sent in the HTTP request when the reader page opens.
External content
Embedded images are not loaded, including remote tracking images and local image files. Raw HTML is disabled. Mermaid diagrams and equations are generated in your browser; their source is not sent to a rendering service. Following a document’s external link opens the destination in a new tab without sending a referrer. That website then applies its own privacy practices.
Analytics and logs
We use PostHog to count page visits, opening-action choices, successful document opens and opening failures, with basic browser/device information and the referring domain. Document text, filenames, query strings and link fragments are excluded. Analytics identifiers stay in memory for the current page; they are not saved to cookies or browser storage. If you opt out, a cookie stores only that choice. Session replay, automatic interaction capture and automatic error reporting are disabled. Application code does not log document text, filenames or content-bearing URLs. Hosting providers can retain network metadata such as IP addresses, paths and timing. Infrastructure logging and retention depend on the hosting provider. We do not promise zero infrastructure retention; use local file opening for documents you do not want to send to the API.
Turn off analytics in this browser. Clear this site’s cookies to reset the choice.
Nothing added to your words
Your document is rendered as supplied. We do not append branding or promotional text to copied document content.