Paste any text and instantly see what ASAP, ROI, FAQ and 100+ other acronyms mean, right inline. Add your own custom dictionary entries too.
Jargon-heavy documents move fast, but not everyone reading them shares the same shorthand. This tool makes acronyms self-explanatory without you having to rewrite a single sentence.
Every recognized acronym gets a hover tooltip showing its full meaning, right where it appears.
Company-specific and project-specific acronyms can be added once and reused on every future paste.
Unrecognized ALLCAPS words are flagged separately so you know exactly what still needs defining.
The built-in dictionary bundles roughly a hundred acronyms that show up constantly in business, technology and everyday writing — things like ASAP, ROI, KPI, API, CEO, FAQ and HTML — each mapped to a clear, unambiguous expansion rather than a list of every possible meaning. Detection looks for standalone ALLCAPS runs of two to six letters, so it catches HR and CTO just as reliably as ICYMI or RSVP, while leaving normal capitalized words like "The" or "Panda" untouched because they aren't fully uppercase. Custom entries you add are checked before the built-in list, which means you can also use them to override a built-in definition if your team uses an acronym differently — for example redefining PT as "Product Team" instead of "Part Time." Everything runs locally in JavaScript: your pasted text is never sent anywhere, and your custom dictionary lives only in your browser's local storage, tied to this site and this device. That keeps the tool useful for anything from onboarding docs and meeting notes to marketing copy, without ever asking you to sign up or upload a file.
Covers common business, tech, internet and general-purpose acronyms out of the box.
Add, override and remove entries; changes are saved automatically to your browser.
No uploads, no accounts — text is processed entirely on your device.
It scans your pasted text for standalone ALLCAPS words of 2 to 6 letters and checks each one against a built-in dictionary of about 100 common acronyms plus any custom entries you've added.
Yes. Use the Add custom acronym form to save any acronym and its expansion. Custom entries are checked first, so they can also override a built-in definition.
Custom acronyms are saved to your browser's local storage for this site. They stay on your device between visits and are never uploaded anywhere.
They're listed separately as unmatched, each with a quick Add expansion button so you can define it on the spot and have it recognized immediately.
Yes. It runs entirely in your browser using plain JavaScript, doesn't require an account, and never sends your text anywhere.
More free text-formatting tools from My Panda Toolbox.