Everyday tools.
Extraordinary simplicity.
Compress, convert, and calculate. Thoughtfully simple tools that get you back to what matters. Free, right in your browser.
Your everyday essentials
Small tasks, meet your new shortcuts.
Matching tools: 3
Image Compressor
Smaller images. Same big impression. Compress JPG, PNG, and WebP in seconds.
Open toolPDF to JPG
Turn your PDF pages into crisp, shareable JPG images. One page or all of them.
Open toolPercentage Calculator
Percentages, discounts, and changes. Get the numbers right, without the guesswork.
Open toolFind the right tool for the task at hand.
Made for your everyday
Everything you need. Nothing in your way.
Your files. Your business.
Your images and PDFs are processed locally. They never leave your browser.
Straight to the good part
No accounts, no installations, no complicated workflows. Just open a tool and go.
Simple by design
Clear controls and useful results, on your desktop, tablet, or phone.
Three steps. One less task.
Choose your tool
Add your file or numbers
Get your result
A few things you might wonder
Built to make your day a little easier.
Is DuoTools really free?
Yes. All three tools are free to use, without an account.
Are my files uploaded?
No. Image compression and PDF conversion happen in your browser. Closing the tab clears the working session.
Can I use DuoTools on my phone?
Yes. The interface works on mobile devices. Large documents may exceed your device’s available memory.
Do I need to install anything?
No. Use a current browser with JavaScript enabled. An internet connection is needed to load the site.