Mark Gallagher, PhD

Squoosh

Squoosh is the ultimate image optimizer that allows you to compress and compare images with different codecs in your browser.

PairDrop

Send files between nearby devices like AirDrop for the web.

PDF24

Merge, compress, and convert PDFs all in one free tool.

Cobalt

Download videos and audio with no ads or tracking.

Bitwarden

Open-source password manager with free unlimited sync.

Speedtest

Ookla's industry-standard internet connection speed test.

iLovePDF

Every PDF tool you need in one free online suite.

TinyPNG

Compress PNG and JPEG images without visible quality loss.