False Friends Language Quiz – Online English/Spanish etc.
Show a word and guess the correct translation, but watch out for false friends. Avoid embarrassment.
UD5 Toolkit
Master kanji strokes by guessing or ordering – fun, fast, and effective for JLPT and daily study.
How many strokes does this kanji have?
Drag & drop or use arrows to sort kanji by stroke count (low to high).
Show a word and guess the correct translation, but watch out for false friends. Avoid embarrassment.
Answer a series of deliberately confusing and trick questions. Lives system and funny wrong answers. Playful, no data stored.
Paste a line of poem and see which syllable stresses create a particular meter. Educational tool.
Select a destination language and generate a printable mini phrasebook with essential greetings, directions, food, and emergency phrases. Local only.
Compute probability for simple events, as well as permutations and combinations (nPr, nCr). Useful for statistics and game theory. Browser-based math.
Determine what score you need on your final exam to achieve your target overall grade. Enter current grade, weight, desired grade. Local only.
Convert a number like 1234.56 to English words 'one thousand two hundred thirty-four and 56/100'. For checks.
Paste a passage and automatically remove every nth word to create a fill‑in‑the‑blank exercise. For teaching and self‑study.
Get a random tattoo concept with style and placement suggestion. For fun and inspiration only. Not real art.
Estimate make probability of a putt based on distance and skill rating. For disc golf enthusiasts. Fun statistical tool, no data upload.
Brainstorm information architecture: enter a parent term and generate child terms and related concepts. Quick idea list.
Choose colors and knot types to design a bracelet pattern. See visual guide. Save locally.
Random shapes appear; compute the area mentally. Multiple choice. For middle schoolers.
Drag the seven tangram pieces to form a target silhouette. Multiple puzzles. Develop spatial thinking. All canvas interactions.
Enter pins per roll and calculate total bowling score including strikes and spares. Supports 10 frames. Learn scoring rules visually.
Enter two names and get a playful love compatibility percentage. Purely for entertainment! All calculation happens instantly in your browser.
Enter your UK tax code and see an explanation of what the numbers and letters mean. Simple educational reference. No data stored.
Listen to two notes and identify the interval. Purely local Web Audio synthesis. Sharpen your relative pitch.
Type notes and convert them into a realistic handwriting image with varied pen styles, ink colors, and paper backgrounds. Perfect for study notes.
Arrange pre‑drawn comic panels into a strip. Add speech bubbles. Export as image. Fun for kids.
Test how fast you can convert between binary and decimal. Timed drills with increasing difficulty. Learn base‑2 fluency.
Create custom flashcards and review them with a simple spaced repetition algorithm. Data stored in your browser. No sign-up required.
Select two birth year animals to see a fun compatibility rating and description. Pure cultural entertainment.
Practice mental arithmetic with customizable operators and digit count. Timed rounds, score tracking. Works offline. Improve your brain speed.
Create a completely randomly generated alien script with fonts and syllable patterns. Translate your name into alien. Fun.
Solve random arithmetic problems under a time limit. Track your score and improve mental calculation. No data collected.
Enter letters and see every possible word permutation. Filter by dictionary words. Master your word game.
Calculate the exact flour, water, and yeast for a poolish or biga based on your final dough recipe and desired prefermentation percentage. Improve aroma and crust.
Choose colors and knots to design a friendship bracelet pattern. View the simulated final result.
Convert between currencies using manually updated or default rates. Great for estimation when offline. Local settings.