Etymology Quick Lookup - Online Word Origin Reference
Enter an English word to get a brief etymology (Latin, Greek, etc.) and root meaning. From curated static data.
UD5 Toolkit
Enter an English word to get a brief etymology (Latin, Greek, etc.) and root meaning. From curated static data.
Type a modern English word and get a possible Old English equivalent. Works offline with a limited but curated wordlist. Learn history.
Enter word pattern with ? for unknown letters and known letters to find matching dictionary words. Essential crossword help. Local dictionary.
Build hreflang tags for multi‑language websites. Select languages and URLs and get the complete <link> snippet.
Enter hiding places and get a set of rhyming clues to print. Fun for kids' parties.
Paste the reference language JSON and a target language JSON. See which keys are missing or extra. Translate with confidence.
Perform simple or regex-based find and replace operations on text. Batch replace words, phrases, or patterns instantly. Processed locally in your browser.
Search and browse a comprehensive table of SI units and common imperial conversions. For students and engineers.
Find the currency code (USD, EUR, JPY) for any country or reverse‑lookup the country from a code. Static reference.
Explore all Intl APIs: NumberFormat, DateTimeFormat, RelativeTimeFormat, ListFormat. See outputs for any locale. Powerful i18n.
Transform English text into pseudolocalized text with accents, expansion, and brackets. Test your UI's readiness for translation.
Browse a searchable list of standard HTTP request and response headers with explanations. Quick dev help.
Convert normal text into UwU‑ified cuteness with 'w', nyaa, and blushes. Original meme generator.
Look up any HTTP status code and see its meaning, RFC reference, and example. Full offline reference.
Enter any two values (voltage, current, resistance, power) and compute the others. Visual triangle helper and formula display. Instant local calculation.
Set a timer that reminds you to take a break, stretch, or follow the 20‑20‑20 rule. Desktop notification supported. Runs offline.
Browse a collection of common bird calls. Play short audio samples to identify birds you hear. Educational static data.
Select species and see ideal humidity range. Set a reminder to mist enclosure. Keep scales healthy.
Select cities and see a 24-hour grid highlighting compatible meeting times. Drag to find a slot that works for everyone. Daylight saving aware.
Perform gestures on a canvas and see them detected in real time. Logs swipe direction, pinch scale, and rotate angle.
Paste email headers or body text to quickly spot phishing signs, suspicious domains, and obfuscated links. Educational and private.
Convert any text to snake_case, kebab‑case, camelCase, or PascalCase. Essential for programming variable naming. Local.
Record audio from your microphone and save as WAV file. Visual waveform while recording. Simple and privacy-friendly; audio stays in your browser.
Strip dangerous HTML tags and attributes (scripts, onclick) to prevent XSS attacks. Safe iframe preview. Local sanitation engine.
Need a reason why you are late or the build failed? Get a hilarious, tech‑themed excuse. Pure fun for dev teams.
Paste CSS with vendor prefixes and get a clean version with only the standard property. Modernize your stylesheets.
Record audio directly from your microphone and download it as a WAV file. Perfect for quick notes. No upload, fully offline support.
Timer to remind you to limit shower water exposure even with a cast cover. Keep your cast dry.
Enter your must volume and current Brix, TA, and pH to calculate additions of sugar, acid blend, or tannin. Standard winemaking formulas.
Compare time across multiple time zones and find a suitable meeting time. Convert a specific time to various cities. Browser-based and always accurate.