Acronym/Abbreviation Finder

What is Acronyms?

A detector for all-caps acronyms and abbreviations (API, JSON, AWS…) with the surrounding sentence as context.

How it works

A regex finds uppercase runs of 2+ letters (Roman numerals and single letters excluded), and each is deduplicated with its first sentence context.

1. Enter your input. Type or paste your input into the field above — the tool responds instantly.
2. Review the result. Output updates live as you type. Everything runs entirely in your browser.
3. Copy or download. Use the Copy button to grab the result, or Download to save it as a file.

Examples

Extracting acronyms from docs

Paste a technical document and get every acronym with its first-use expansion — a quick glossary for onboarding docs.

Common mistakes

False positives

Short all-caps words that aren't acronyms (like SQL in prose) can slip in. Review the list and filter by minimum length.

Frequently asked questions