BinaryTranslatorTool started as a one-page utility: paste text, get binary; paste binary, get text. That is still the whole tool. It runs in your browser tab using the ASCII character set, nothing you type is uploaded anywhere, and there is no account to create.
Around that converter sits a set of guides on how binary, ASCII, and hexadecimal actually work, plus a dated ASCII reference table with a downloadable CSV for anyone who wants the raw values instead of the explanation. The guides are written by Marcus Vance, whose beat on this network is tools and technology. Editorial oversight is Chris Terry's; see the editorial standards page for how facts in these guides get checked before and after publishing. Meet the people behind the site on the authors page, or send a correction through contact.