Hello.

This blog post introduces a bookmarklet utilizing the EyeDropper API for quickly grabbing color information in Chromium-based desktop browsers. The bookmarklet simplifies color selection by opening the eyedropper tool and returning the chosen color's sRGBHex value in an alert box. A link to a related blog post about creating a similar Chrome extension is also included.

I created a bookmarklet to easily download all images from my daughter's nursery school portal, which doesn't allow direct downloads. It uses the File System API to let the user choose a directory and save all images there. The bookmarklet grabs all images, fetches them sequentially to avoid overloading the server, and saves them to the chosen directory using file handles and writer streams. Now I can easily preserve these memories!

This blog post introduces a simple bookmarklet that provides quick access to a webpage's JavaScript console logs, warnings, and errors directly on desktop and mobile devices. It eliminates the need for connecting to Chrome DevTools, especially useful for quick debugging on mobile. The bookmarklet creates a small, expandable element at the bottom of the page that displays console outputs and keeps a running tally. It intercepts calls to console.log, console.warn, and console.error, displaying the messages in the created element while preserving their appearance in actual DevTools. While not a full DevTools replacement, it's a handy tool for quick insights and debugging on the go.

I created a simple bookmarklet for quickly enabling Picture-in-Picture mode for videos, even on sites that disable it. Drag the "Quick PIP" bookmarklet link to your bookmarks bar. When clicked, it activates PIP for the first actively playing video on the page or in any same-origin iframe. The bookmarklet's code is concise and avoids polluting the global scope. It efficiently finds the first playing video and requests Picture-in-Picture mode.

Just saw that Scroll To Text Fragment is launching in Chrome 81! This feature lets you link to specific text within a page, which is awesome. I created a bookmarklet that grabs your selected text and generates a link using the new :~:text= fragment identifier. Drag the "Find in page" link to your bookmarks bar to try it out. The bookmarklet currently selects whole words, but I'm planning on adding some logic to handle partial word selections better. You can also easily modify the bookmarklet to copy the generated link to the clipboard instead of opening a new window.

A simple bookmarklet that will performance trace the current page and open in an hosted devtools instance

Being able to run a browser on a server is one of the most powerful things to hit the web.

I love (actual love) the `window.performance` API. Use it to help speed up your site.

I recently used Page Speed Insights for Mobile to improve my blog's page load time and one of the key recommendations was to reduce render-blocking CSS above the fold. This led me to explore the concept of critical CSS, which is the minimum CSS required to render the initial view of a page. I developed a proof-of-concept tool (bookmarklet and devtools snippet) that analyzes the DOM and extracts the critical CSS by iterating through visible elements and using window.getMatchedCSS(). This tool helps identify unnecessary CSS, integrate into build processes for optimization, and potentially generate page-specific CSS files for improved performance. It currently has limitations, working only in WebKit/Blink, ignoring media queries, and not handling pseudo-elements.