Browser tools that need no installation β what kinds exist and what to check before using them.
A great deal of work that once required downloading software now happens on a single web page, because browsers themselves provide enough computing power and APIs. Unit conversion, encoding, image handling and text comparison all qualify. Nothing to install or update, and sharing a link is enough for someone else to use it too.
The most important question with any free tool is where your input goes. A tool that computes inside the browser never transmits what you type; one that processes on a server may record it in logs. For passwords, identification numbers or contract text, that distinction is decisive.
What people actually look for narrows to a few groups: converters for units, number bases and currency; generators for QR codes, passwords and colour palettes; developer helpers such as JSON formatting and regex testing; calculators for dates, age and finance; and text utilities. Bookmarking the ones you use often saves the search itself.
Everything collected here works without an account and computes inside your browser. Because input is never sent to a server, nothing is recorded even if you paste sensitive text. Some of the most used ones are linked below.
Each button runs this keyword on that search engine