TermBox

Build your own glossary from any CSV. 5 built-in domain glossaries, PIN protection, 12 languages. Fully offline, no account.

TermBox turns any CSV file into a fast, searchable glossary — available instantly from your browser toolbar. Perfect for: • Acronym lookup and abbreviation expansion • Technical glossaries (medical, legal, engineering, AI/ML, finance) • Team or company-specific terminology • Any domain jargon you need close at hand HOW IT WORKS 1. Prepare a CSV with a "term" and "definition" column (plus optional full_form, aliases, domain) 2. Load it into TermBox from a local file 3. Search instantly — no internet connection needed KEY FEATURES ✓ Build your own custom glossary — bring any CSV or JSON source pack ✓ Create a glossary from scratch — no CSV needed, add terms directly in the app ✓ Edit and delete individual terms — right-click any result to modify or remove it ✓ Browse all terms A–Z — flip to a full alphabetical list with one tap ✓ PIN protection — encrypt any source with AES-256-GCM; unlock once per session ✓ Acronym expander — add a full_form column to expand abbreviations ✓ Aliases — one entry can match multiple names (e.g. "PCR", "qPCR", "rt-PCR") ✓ Multiple glossaries — load several sources and search across all of them ✓ Search by term name or search inside definitions ✓ Smart ranking: exact match → prefix → alias → substring ✓ Export any glossary back to CSV or JSON ✓ 12 built-in languages — English, German, Spanish, French, Japanese, Korean, Portuguese, Kinyarwanda, Kiswahili, Turkish, Vietnamese, Chinese (Simplified) ✓ Install custom language packs from a JSON file ✓ Author credits — CSV and JSON glossaries can embed author name and URL ✓ Fully offline after first load — no server, no account, no subscription ✓ Dark mode, adjustable font size, resizable popup ✓ Open source — MIT licence, code on GitHub PRIVACY Stores data only on your device using Chrome's local storage. No analytics, no tracking, no external connections.