Every tool opens and works without an account, an installer or a trial. Open the page, drop a file in, take the result away. This page covers the parts that are not obvious: finding the right tool quickly, what keeps working with the network off, and the few things an account adds.
255 tools is more than anybody browses, so there are three faster routes.
241 of the 255 tools keep working once the page has loaded, even with the network switched off, because the work happens in your browser rather than on a server. The rest need to fetch something first: a few pull down an AI model the first time you use them and then work offline afterwards, and a handful genuinely need a connection every time, because the thing they do is look something up.
You can also install the site as an app. In Chrome or Edge, look for the install icon at the right-hand end of the address bar; on an iPhone, use Share and then Add to Home Screen. It opens in its own window with no browser chrome, and the tools you have already visited keep working without a connection.
Nothing is taken away if you never make one. An account is free and adds three things.
237 of the 255 tools do the whole job inside your browser, so the file never reaches us at all: it is not uploaded, not stored and not seen. The other 18 do send something to a server, and each one is named along with the reason, because a promise that broad is only worth anything if the exceptions are listed too.
Any current version of Chrome, Edge, Firefox or Safari, on a desktop or a phone. Because the heavy tools run on your own machine rather than ours, how fast they are depends on your device: the AI tools in particular are noticeably quicker on a laptop than on an older phone, and a very large PDF or a high-resolution photo needs memory to work in.
If a tool will not start, the usual cause is an extension blocking the code it needs, or a cached copy of an older version of the site. A hard reload fixes the second one. If it persists, tell us which tool and which browser.
The same tools are available as a Windows app and an Android app, and there is a machine-readable interface if you want to reach the catalogue from a program or an AI agent. Anything wrong on this page is worth reporting to support@toolsmonk.com.