Ellipse Drawing Tool - Online Interactive Geometry
Draw perfect ellipses by dragging focal points and a point on the curve. See the equation update dynamically. Educational.
UD5 Toolkit
Draw perfect ellipses by dragging focal points and a point on the curve. See the equation update dynamically. Educational.
Calculate the area of an irregular polygon by entering its vertex coordinates. Uses the shoelace formula. Pure math.
Try to draw a perfect circle freehand. Score based on roundness. Fun and addictive. No data sent.
Drag the seven tangram pieces to form a target silhouette. Multiple puzzles. Develop spatial thinking. All canvas interactions.
Create a virtual scratch card with a hidden message or prize. Send the link; recipient scratchs with mouse/touch. Canvas-based.
Drag colored shapes to matching outlines. Simple, no-text game for 2-4 year olds. Works on touch devices.
Arrange preβdrawn comic panels into a strip. Add speech bubbles. Export as image. Fun for kids.
Click grid to place beads, choose colors, generate a loom pattern. Download as image.
Enter mold dimensions or water weight to get total resin needed, including Part A and B.
Drag pie slices to represent fractions and see them added together. Great for visual learners.
Measure window width and get rod length and number of curtain panels for proper fullness.
Enter an original pan size and find an alternative pan with the same batter volume. Never overflow or underfill.
Random shapes appear; compute the area mentally. Multiple choice. For middle schoolers.
Calculate board feet for dimensional lumber and generate a cut list with waste factor. Quick carpentry tool.
See exact mm and inch dimensions of ISO A-series and US paper sizes. Visual comparison tool. Also calculates weight based on GSM and dimensions.
Design circular string art by ticking nails and seeing simulated thread lines. Adjust number of nails and steps. Export pattern. Local only.
Type notes and convert them into a realistic handwriting image with varied pen styles, ink colors, and paper backgrounds. Perfect for study notes.
Input telescope and eyepiece parameters to see a simulated view of the Moon or Andromeda. Plan observations.
Choose colors and knots to design a friendship bracelet pattern. View the simulated final result.
Choose colors and knot types to design a bracelet pattern. See visual guide. Save locally.
Apply a color tint overlay over text to see if it helps reading comfort. Trial for visual stress.
Enter number of eyelet pairs and lacing style to find the correct shoelace length in inches/cm. Never buy too short.
Upload a photo and convert it into a Perler/Hama bead pattern with matching colors. Download chart.
Enter your sander model or hole count to find compatible hookβandβloop discs. Stop buying the wrong sandpaper.
Calculate how much resin part A and part B to measure for a given total volume. Common ratios (2:1, 1:1). Avoid sticky failures. Local.
Convert annual salary to effective hourly rate considering holidays, vacation, and work hours per week.
Design friendship bracelet patterns by placing forward and backward knots on a grid. See a visual preview of the finished bracelet.
Convert text between various programming case styles. Includes SCREAMING_SNAKE, PascalCase, etc.
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.