Peekover

Render raw markdown into beautiful, private reading. Zero network by default.

Peekover is a free, open-source browser extension that turns raw markdown files into formatted, readable pages. It works on markdown files opened from your own disk and on raw files from GitHub, GitLab and Bitbucket. It asks for no browser permissions and makes no network requests unless you ask it to. - Renders markdown with tables, task lists, strikethrough and bare-URL links. - Cleans every rendered page with DOMPurify before it is shown. - Shows a table of contents for documents with two or more headings. - Lets you sort, filter and copy tables. - Has light and dark themes and follows your system setting by default. - Blocks remote images until you choose to load them. - Has an app page, opened from the toolbar button, where you open a folder and browse its markdown files. - Can watch a document and update the view when it changes on disk, on the app page and in a tab showing a file opened from disk. - On the app page, while watching, keeps snapshots of the document on your device, which you can turn off. - On the app page, compares a document with one of its snapshots or with another file in the folder. - On the app page, draws Mermaid diagrams, renders math with Temml, and highlights code in common programming languages. - On the app page, exports a standalone HTML file, prints to PDF, and copies the document as HTML, plain text or rich text. - On the app page, has a basic editor with a live preview and a Save button, and asks before discarding unsaved changes. - In a tab, snapshots, comparison, diagrams, math, code highlighting, export and editing are not available; open the document on the app page for those. - Watching does not work for raw files from GitHub, GitLab or Bitbucket. - Files opened from disk need the extension's "Allow access to file URLs" setting turned on. Peekover collects nothing: it has no accounts, no analytics, no telemetry and no error reporting. It sends nothing about you, your files or your settings to Peekover or to anyone else. What it stores, such as your settings and snapshots of documents you watch, stays in the browser's storage on your device. "Wipe all data" in the "Stored data" panel on the app page deletes everything Peekover has stored. If you choose to load the remote images in a document, your browser downloads them from the sites that host them. Privacy policy: https://peekover.dev/privacy/ Peekover is released under the MIT licence, and its source code is at https://github.com/mosuvo/peekover.