Word Origin Dictionary - Online Quick Etymology Lookup
Enter an English word to get a quick etymology. From a curated list of common roots. Learn language history.
UD5 Toolkit
Uncover the fascinating origins of English words — instantly.
Enter an English word to get a quick etymology. From a curated list of common roots. Learn language history.
Enter word pattern with ? for unknown letters and known letters to find matching dictionary words. Essential crossword help. Local dictionary.
Paste the reference language JSON and a target language JSON. See which keys are missing or extra. Translate with confidence.
Enter a domain and see public WHOIS info via a free API with rate limiting. Quick domain check.
Shows a random historical event that occurred on today's date. Fun daily knowledge snippet.
Get a random history fact or see what major events happened on this day. Curated from public domain sources. Local.
Enter hiding places and get a set of rhyming clues to print. Fun for kids' parties.
Select a country to see a concise list of cultural norms, greetings, and taboos. Be a respectful traveler.
Search and browse a comprehensive table of SI units and common imperial conversions. For students and engineers.
Build hreflang tags for multi‑language websites. Select languages and URLs and get the complete <link> snippet.
Browse a searchable list of standard HTTP request and response headers with explanations. Quick dev help.
Transliterate English letters into Elder Futhark runes. Fun for tattoos and fantasy. One‑to‑one mapping.
Browse a collection of common bird calls. Play short audio samples to identify birds you hear. Educational static data.
Type your name and see it spelled letter-by-letter in the NATO phonetic alphabet. Useful for radio calls or just for fun.
Enter a registration (e.g., N123AB) and convert to the standard phonetic callsign. Aviation enthusiast tool.
Paste a sentence and see each word tagged with its part of speech (noun, verb, adjective). Local rule‑based analysis.
Look up any HTTP status code and see its meaning, RFC reference, and example. Full offline reference.
Type an abbreviation and its full form to get the proper `<abbr title='...'>` HTML. For accessible markup.
Enter any two values (voltage, current, resistance, power) and compute the others. Visual triangle helper and formula display. Instant local calculation.
Full scientific calculator with history tape, memory keys, and unit conversions. All in your browser, no install.
Test how non‑Latin characters (Chinese, Cyrillic, Arabic) convert to URL‑safe slugs with proper transliteration rules. Preview the final string.
Select bracelet type (chevron, candy stripe) and enter rows to estimate total embroidery floss needed per color. Reduce waste.
See current time in multiple pre-selected cities simultaneously with day/night indicators. No tracking, just a simple multi-clock.
Record audio from your microphone and save as WAV file. Visual waveform while recording. Simple and privacy-friendly; audio stays in your browser.
Type a passage and see it appear in a realistic cursive font. Helps connect handwriting to digital text.
Select cities and see a 24-hour grid highlighting compatible meeting times. Drag to find a slot that works for everyone. Daylight saving aware.
Set a timer that reminds you to take a break, stretch, or follow the 20‑20‑20 rule. Desktop notification supported. Runs offline.
Display current time for multiple cities worldwide. Add and remove locations. See day/night indicator. Lightweight and always accurate.
Enter a URL and see its CORS headers. Understand why a fetch fails. Check preflight responses. Client‑side debugger.
Plan your travel budget by entering flights, accommodation, meals, activities, transport. See cost breakdown and per-person share. Fully local.