FA Dev Tools

Explain IT

Type a technology you keep seeing and do not know — a language, a framework, a protocol, an acronym. You get what it is, what people actually use it for, how popular it is, whether it is still alive or has been replaced, what you would use instead, and what it turns up beside.

Try:

Powered by DeepSeek (deepseek-v4-flash). Answers are generated and then cached, so an older one can describe a project that has moved on — check the links before you bet a project on it.

Instructions

A plain-English reference for IT jargon. Ask about a language, framework, tool, protocol or acronym and get one page on it: what it is, what it is used for, how widely it is used, whether it is still current or has been superseded, what the alternatives are, and what comes up alongside it.

  1. Type the term — php, laravel, node js — and hit Explain, or press Enter.
  2. Read the answer: What it's used for, How popular is it, Still active, or replaced, Alternatives, Related and Links. The badge beside the name is the short version of the status.
  3. Follow the links. Any term in the answer that has already been explained becomes a link to its own page, and those open in a new tab so you keep the one you are reading.
  4. The chips at the bottom are everything explained so far, most read first — a click reads it back out of the cache.

Tips

  • Spelling does not matter much: react, react js, React.js and reactjs all reach the same answer, as do the aliases the answer itself lists.
  • The first ask for a term goes to the model and takes a few seconds; it is then stored, so everyone after gets it instantly. The header strip says which of the two you just got.
  • Answers are stored on the server and shared by everyone on this deployment — the term you look up is not private to your browser, though what is in the box before you hit Explain is.
  • Ask something that is not a technology and it says so rather than inventing one, and nothing is cached.
  • There is no web search behind this — it is the model's own knowledge, with a cutoff, cached on top. For anything that turns on the last year or so, follow the official link in the answer.
  • Terms are capped at 60 characters. This is a lookup box, not a prompt box — a sentence typed here is still answered as if it were the name of a technology.
  • Hit Example, then click Explain or any of the Try chips to run a sample lookup.