New

Visual Garden Bed Grid Planner – Online Drag & Drop Plants

Draw a raised bed and drag plant icons to arrange them. See spacing requirements. Print layout.

Gardening garden planner visual

New

Visual Cron Schedule Builder – Online Next 10 Runs Preview

Build a cron expression using plain English toggles and see its visual timeline. No memorization needed.

Developer Tools builder cron visual

New

CSS Blend Mode Playground – Online background-blend-mode & mix-blend-mode

Load images or use colors and apply all 15 CSS blend modes. Visual tester for creative effects.

Design Tools blend mode CSS visual

New

Memory Palace Trainer – Online Visualize & Place Items

Virtual rooms where you can place images representing items to remember. Practice the method of loci.

Education memory palace technique visual

New

Paper Size Visual Comparison – Online A4 vs Letter vs Legal

Overlay outlines of different paper sizes scaled to real dimensions on screen. Choose the right one.

Comparison comparison paper size visual

New

Simple Sentence Diagrammer – Online Visual Grammar

Type a simple sentence and see a rudimentary Reed‑Kellogg diagram. Educational.

Education grammar sentence diagram visual

New

CSS Grid Placement Playground - Online Visual Area Builder

Drag items into grid cells and see the resulting grid‑area or line‑based placement code. Learn how auto‑placement and spanning work.

Developer Tools CSS grid placement playground visual

New

Binary Number Explainer - Online Visual Bit Representation

Enter a decimal number and see a visual breakdown of bits, place values, and bitwise operations. Learn binary easily.

Developer Tools binary bits explainer visual

New

Breathing Exercise Timer - Online Inhale Hold Exhale Visual Guide

Animated circle guides your breathing: breathe in, hold, breathe out. Customizable ratios (e.g., 4-7-8). Soothing colors, optional bell sound. Purely local.

Health & Fitness breathing meditation timer visual

New

Traceroute Simulator - Online Visual Hop Path

Simulate a traceroute by entering a destination IP. Learn about AS paths and latency. Does not send real packets; educational visualisation.

Educational education network traceroute visual

New

CSS Grid Layout Builder - Online Visual Drag & Drop

Add rows and columns, merge cells, and set gaps visually. Get the grid‑template CSS and HTML. Fast layout prototyping.

Developer Tools builder CSS Grid layout visual

New

CSS Transition Playground - Online Visual Easing Curve Builder

Choose a property, duration, and bezier curve. Trigger the transition and see the animation. Copy the complete CSS rule.

Developer Tools builder CSS transition easing visual

New

CSS Filter Visual Editor - Online Apply & Chain Filters

Add multiple CSS filters (grayscale, blur, hue‑rotate) to an image. See the combined effect. Copy the CSS filter value.

Developer Tools chain CSS filter editor visual

New

Visual CSS Specificity Calculator - Online (0,0,1) Style

Enter a CSS selector and see its specificity broken down into A,B,C columns with a visual weight comparison. Learn specificity.

Developer Tools calculator CSS specificity visual

New

CSS Grid Auto Placement Demo - Online How Items Flow

See how grid-auto-flow: row vs column changes item placement. Add and remove items to understand the algorithm. Visual.

Developer Tools auto-placement CSS Grid demo visual

New

Cron Job Simulator - Online Visual Schedule Tester

Set a cron expression and see a calendar of the next 1,000 execution times. Never miss a schedule again.

Developer Tools cron schedule simulator visual

New

AudioContext Sandbox - Online Web Audio API Visual Programming

Connect oscillators, gain nodes, and filters with a visual graph. Hear the result in real time. Learn Web Audio interactively.

Developer Tools AudioContext oscillator visual Web Audio

New

GraphQL Query Builder - Online Visual Construct Request

Build a GraphQL query by selecting fields and nesting visually. Copy the built query string. For learning and fast prototyping.

API builder GraphQL query visual

Venn Diagram Builder - Online 2‑ & 3‑Set Overlap Visualizer

Create simple 2‑ or 3‑set Venn diagrams by entering comma‑separated lists. Shareable via URL fragment. No account.

Educational builder sets Venn diagram visual

Prime Factor Tree Generator - Online Visual Factorization

Enter a number and see an animated factor tree breaking it down to primes. Perfect for teaching factorization.

Calculator factor tree math prime factorization visual

New

Collatz Conjecture Visualizer - Online Hailstone Numbers

Enter a number and see its Collatz sequence graphed. Watch the steps until it reaches 1. Mesmerizing math.

Educational Collatz hailstone sequence visual

New

Visual Fraction Adder – Online Slice & Combine Pies

Drag pie slices to represent fractions and see them added together. Great for visual learners.

Education add fractions visual

New

Decision Tree Builder - Online Visual Yes/No Path

Build a simple decision tree by adding yes/no nodes. Flowchart style. Export as text outline.

Productivity builder decision tree logic visual

New

Digital Hourglass - Online Visual Timer with Sand

An animated hourglass that you can set for any time. Watch the sand flow. Beautiful and calming timer.

Relaxation hourglass sand timer visual

New

Text to Binary Grid - Online Visual Representation

Enter text and see each character's 8‑bit binary laid out in a black‑and‑white grid. Beautiful data art. Local.

Educational binary grid text visual

New

Keyboard Layout Tester - Online Visual Key Press Viewer

Press any key and see it light up on a standard QWERTY layout. Check functionality or demonstrate shortcuts.

Developer Tools keyboard layout tester visual