About Voolza

We built Voolza on a simple idea: the small tools people reach for every day — calculators, converters, timers, formatters, document and image helpers — should be instant, free, and private. No installs, no sign-ups, and no waiting for a server. You open the page, get your answer, and move on.

What you can do here

Voolza currently offers 64 tools across 16 categories, including Calculators, Data formats, Encoding & decoding, Hashing & crypto, Text utilities, Code formatters and more. Whether you're a developer formatting JSON, a student working out percentages, a freelancer splitting a bill, or anyone who needs to convert a file or set a timer, there's likely a tool here for you. You can find anything instantly with the ⌘K command palette.

Privacy comes first

Almost every tool on Voolza runs 100% in your browser. The text you paste, the files you drop, and the numbers you type are processed on your own device and are never uploaded to a server. Your recent activity is stored only in your browser's local storage so you can pick up where you left off. Read more on our Privacy page.

Free to use

Voolza is free and supported by unobtrusive advertising. That lets us keep building and maintaining tools for everyone without putting them behind a paywall. If a tool ever needs a network request to work, it's clearly labelled.

Get in touch

Have a suggestion, found a bug, or want a tool we don't have yet? We'd love to hear from you on our Contact page. Voolza is always growing, and a lot of what we build comes straight from user requests.