Leonardo Compson

Easily draw on any website with simple drawing tools, then print the result.

See multiple world clocks in toolbar popup!

Search and highlight keywords in any webpage via toolbar popup.

Manipulate PDF documents via Ghostscript interpreter right in your browser!

Make any webpage into a content editable document and modify it via toolbar popup!

Easily clear your browser's data and speedup browsing via toolbar popup.

Record your computer's screen with just one click!

Download fragmented media files with HLS (HTTP Live Streaming) downloader.

Blocks scripts (and more) on untrusted websites.

Easily access to recent clipboards via context-menu or toolbar popup.

Easily save all images in a website to a zip file with just one click!

Switch cookies ON or OFF with just one click!

An easy-to-use and lite Magic Squares game

Easily block (nullify) undesired Web API(s) and improve your privacy.

Easily suspend inactive tabs and save up memory for your browser.

Easily convert text to image (.png) with a custom background image.

A global dark theme for the web.

Easily add (Access-Control-Allow-Origin: *) rule to the response header.

Easily stop coin miners from using your computer resources.

A fast, easy and secure way to block all unwanted popups and pop-unders!

Gain complete control over all content settings (cookie, images, javascript, etc.).

Easily remove desired HTML5 elements with just one click!

Test your vision (visual acuity) via Tumbling E chart in your browser!

Encrypt or decrypt any file with just one click inside your browser!

Play YouTube videos in the highest or lowest available quality.