About Pandoo

Pandoo is a collection of small, free tools for everyday problems: calculating a loan, merging a PDF, converting an iPhone photo, counting business days, or checking how a pixel art game scales on a Steam Deck.

Why we built it

Most free tool sites ask you to upload your files to their servers, cover the page in pop-ups, or lock basic features behind a sign-up. We wanted the opposite: tools that open instantly, do one job well and respect your privacy.

How it works

Every tool on Pandoo runs inside your browser. When you compress an image, merge a PDF or calculate your finances, the work happens on your own device. Your files and numbers are never sent to us, which is also why the tools work fast and keep working on slow connections.

Who makes it

Pandoo is an independent project created and maintained by Pietro Christe in São Paulo, Brazil. It's available in English and Portuguese, and new tools are added based on what people need — including a growing set of tools for indie game developers.

How Pandoo stays free

The site is supported by advertising. Ads never block a tool, and no account or payment is ever required to use anything here.

Accuracy

We test every calculator against known results and explain the formulas on each page. Still, the tools are meant for information and planning: for financial, legal or tax decisions, check the numbers with a qualified professional.

Support and follow

Pandoo is made by Pietro Christe, who also creates indie games at Christe Studio. If the tools help you, you can support his work on Patreon or connect on LinkedIn.

Have an idea for a tool or found a problem? Get in touch.