All tools run in your browser — your files never leave your device.
All tools154

Insights

Document work,
explained properly.

Practical writing about PDF, image and document work — what is actually inside the file, which settings change the outcome, and how to get it right the first time. Every guide is written here, not reprinted.

Runs in your browserNothing uploadsNo signupWorks offline

Page 3 of 15

Four common sums, and where each one goes astray

BMI was never designed for individuals. Working-day counts are off by one more often than not. Both errors are ordinary and both are avoidable.

Stop reading, start doing

Every tool in this guide is free.

154 browser-based utilities. No account, no upload, and no file size limit — your files are processed on your own device and never sent anywhere.

Browse all 154 tools