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Dev tools · April 6, 2024

AU

A url only notepad that hosts itself

I like playing around with bookmarklets (bookmarks that are executable JavaScript) And I wanted to make a Quine (code that prints a copy of its own source code ad infinitum) So I made a bookmark-only notepad that saves a copy of its own executable and current state to a JavaScript executable bookmarklet. As you type, a link on the page updates with the source code and the internal state. You can drag this link to the bookmarks bar to “save” your work. Works cross device if you have browser sync on. No server involved!

In plain words

A self-contained notepad built as a bookmarklet that stores notes entirely within executable JavaScript code. As users type, the tool generates an updated bookmarklet containing both the application code and current notes, which can be dragged to a browser's bookmarks bar for saving. The notepad requires no server and syncs across devices through browser synchronization. Developers interested in bookmarklets and self-replicating code will find this tool notable for its quine-like approach to data persistence.

written from the facts on this page · September 2026

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