Free · No signup · Runs in your browser

The internet’s toolbox

Free calculators, converters and utilities. No signup, just tools.

Popular: Percentage · QR code · PDF merge · Word counter

Built for one thing: getting you an answer fast

Isobj is a collection of free online tools — calculators, converters, generators and utilities for everyday problems. Every tool loads instantly, works on any device, and gives you the result right on the page.

There are no accounts, no downloads and no paywalls. Files you process with our PDF and image tools stay in your browser wherever possible — your data isn't our business model.

Instant results

No page reloads. Type, click, done.

No signup

Every tool is free to use, no account required.

Works everywhere

Desktop, tablet or phone — no install needed.

Private by design

File tools process locally in your browser when possible.