Keller

An easy to use speech synthesis and recognition tool for your browser!

Defending against Font fingerprinting by reporting a fake value.

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

Open a blank dark or white tab rather than the default browser's new tab page.

Easily adjust various sound settings (volume, balance, etc.) via toolbar popup.

A lite, free & flexible LaTeX editor app for your browser.

Allow the right-click menu for all elements with a restriction!

Create animated GIFs from existing video file(s) or images!

A free & easy-to-use word editor extension for your browser.

Save a page content & incorporate all resources (i.e. images) in a single file!

Easily vectorize an image (convert to SVG) in your browser!

Useful information about your system's connection including, type, speed, and rtt.

Listen to more than 20K free radio stations around the world!

Generate QR code from any text and save it as an SVG image

A simple and elegant dark theme for your browser.

A lite, free & flexible Markdown editor app for your browser.

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

Disable window.eval() in all websites and improve your online security!

An easy-to-use and lite Magic Squares game

Defending against WebGL fingerprinting by reporting a fake value.