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Cash Stack Visualizer – Online See How Much $1 Billion Looks Like

Enter an amount and see a virtual stack of $100 bills with height comparison to everyday objects.

Fun Tools cash stack visualizer

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Paint Color Visualizer – Online Test Wall Colors on Sample Rooms

Simulate paint colors on a pre-loaded room photo by adjusting hue, saturation. Find your perfect shade before buying. Local canvas.

Home & DIY color paint room visualizer

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Password Policy Visualizer - Online See Rules in Action

Define password rules and see a live checklist that updates as you type. Design better password UX for your app.

Security password policy rules UX visualizer

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Touch Pressure & Radius Visualizer - Online Advanced Input

Touch your screen and see the pressure and radius reported. Visualize force. Mobile developer tool.

Debugging pressure radius touch visualizer

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Regex State Machine Visualizer - Online DFA Diagram

Enter a simple regular expression and see its equivalent Deterministic Finite Automaton diagram. Learn how regex engines work.

Developer Tools DFA regex state machine visualizer

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Big‑O Complexity Visualizer - Online Compare O(1) to O(n!)

Plot different Big‑O complexities on a chart. See how O(log n) stays flat while O(2^n) explodes. Educational reference.

Developer Tools algorithm Big‑O complexity visualizer

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Keyboard Shortcut Visualizer - Online See macOS/Win Modifier Keys

Press any key combination and see the human‑readable shortcut for macOS and Windows. Developer docs helper.

Developer Tools keys macOS shortcut visualizer

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Recursion Tree Visualizer - Online See Fibonacci Calls

See the complete recursion tree for small Fibonacci or factorial calculations. Understand overlapping subproblems. Educational.

Developer Tools Fibonacci recursion tree visualizer

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aria‑describedby Visualizer - Online Check Descriptions

Highlight elements with aria‑describedby and see the linked description text. Verify a11y annotations.

Accessibility accessibility aria‑describedby debug visualizer

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Screen Reader Text Visualizer - Online View Hidden A11y Content

Paste a website's HTML and see which text is only visible to screen readers (e.g., .sr‑only). Preview the accessible layer.

Accessibility a11y screen reader text visualizer

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CSS color‑mix() Visualizer - Online Blend in sRGB & OKLCH

Pick two colors and mix them in different color spaces with sliders. See the difference between sRGB and OKLCH mixing. Copy the code.

Color Tool blend color-mix CSS visualizer

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Relative Color Syntax Visualizer - Online Adjust Lightness/Chroma

Start from a base color and use `oklch(from color l c h)` to create lighter or darker variants. Copy the code.

Color Tool CSS oklch relative color visualizer

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Event Loop Visualizer - Online See Call Stack & Microtask Queue

Watch a simulation of how the JavaScript event loop handles synchronous code, microtasks, and macrotasks. Learn async.

Developer Tools async event loop JavaScript visualizer

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Storage Quota Visualizer - Online See Available Space

Call navigator.storage.estimate() and display a visual pie chart of used vs. available browser storage. For PWA debugging.

Developer Tools estimate quota storage visualizer

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Tire Size Visualizer - Online Compare & Dimensions

Enter two tire sizes and see a side‑by‑side comparison of diameter, width, and speedometer error. Local math.

Automotive comparison size tire visualizer

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Data Structure Visualizer - Online Array, Stack, Queue

Add, remove, push, pop items and watch the data structure change visually. Supports arrays, stacks, and queues. For CS students.

Developer Tools array data structures stack visualizer

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Password Bit Strength Visualizer - Online Security Meter

Type a password and see a bar that fills based on estimated bits of entropy. Color‑coded feedback. No storage.

Security entropy password strength visualizer

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JSON to Graph Visualization - Online Tree Diagram

Paste a JSON object and see a dynamic, draggable tree graph representation. Excellent for debugging nested data.

Developer Tools graph JSON tree visualizer

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CSS Box Model Visualizer - Online Interactive Margin Padding

Adjust margin, border, padding, and content sizes interactively and see the rendered box model. Get the exact CSS. Teach or learn layout.

Developer Tools box model CSS margin visualizer

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Pathfinding Visualizer - Online A*, Dijkstra & BFS Grid

Draw walls on a grid and watch A*, Dijkstra, or BFS find the shortest path. Interactive animation. Learn graph traversal.

Developer Tools A* algorithm pathfinding visualizer

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Sorting Algorithms Visualizer - Online Bubble, Quick & Merge

Watch classic sorting algorithms step through a randomized bar chart. Adjust speed and array size. Great for learning algorithm efficiency.

Educational algorithms education sorting visualizer

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SQL JOIN Visualizer - Online Interactive Venn Diagrams

See interactive Venn diagrams for SQL JOINs: INNER, LEFT, RIGHT, FULL, CROSS. Understand set theory visually. Local static site.

Developer Tools JOIN SQL Venn visualizer

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Audio Waveform Visualizer - Online See Your Sound

Visualize audio in real time from your microphone or uploaded audio file. See the waveform dance. Uses Web Audio API locally.

Entertainment audio microphone visualizer waveform

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Bit Density Visualizer - Online File Binary Viewer

Upload a small file to see each byte as a block, color-coded by value. Visualize the structure of binary data. Client-side.

Developer Tools binary bits file visualizer

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Audio to GIF Waveform - Online Animated Sound Visualizer

Upload an audio clip and generate an animated GIF of its waveform dancing. Shareable sound snippet. Canvas magic.

Generator audio GIF visualizer waveform

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Regex Visualizer - Online Railroad Diagram Generator

Enter a regular expression and see a visual railroad diagram explaining the pattern. Learn and debug regex.

Developer Tools debug diagram regex visualizer