Random Accessible Palette Generator - Online WCAG Safe
Generate a random 5‑color palette where every adjacent pair passes WCAG AA contrast. Safe for inclusive designs.
UD5 Toolkit
Create Hero Abilities — Unleash Your Imagination for RPGs, Writing & Character Design
The ability to create, control, and manipulate fire and heat with one's mind. Users can generate flames from their body, shape fire into constructs, and resist extreme temperatures.
No saved superpowers yet. Generate one and click Save!
Generate a random 5‑color palette where every adjacent pair passes WCAG AA contrast. Safe for inclusive designs.
Build a renovate.json file to automate dependency updates. Choose schedule, automerge, and package rules. Local.
Build a Vite configuration file by selecting plugins (Vue, React, etc.), aliases, and build options. Copy the final code.
Register a custom CSS property with syntax, initial value, and inherits. Animate colors and numbers that couldn’t before.
Load images or use colors and apply all 15 CSS blend modes. Visual tester for creative effects.
A completely black page to save battery on OLED devices. Click to go fullscreen. Simple utility.
Estimate how long a battery will last given capacity (mAh/Wh) and load current. Also computes backup time for power banks. Quick and local.
Swap between physical and logical properties (margin‑inline vs margin‑left). Live preview with writing‑mode. Internationalize your CSS.
Enter network name and password to generate a stylish printable card for visitors. Local, no data leak.
Apply user‑select: none, text, all and see how it affects selection. Copy the CSS snippet for your UI elements.
Paste your CSS and get a sorted list of all custom properties defined under :root with their values. Quick audit.
Apply will‑change to any element and see its effect on compositing. Learn best practices for smooth animations.
Enter any integer and quickly find the next prime number after it. Perfect for hashing and puzzles.
Easily compute posterior probabilities given prior, likelihood, and marginal likelihood. Visual diagram. All local.
See every HTML input type in one page. Check browser support and styling. Copy sample markup. Quick frontend reference.
Log shedding events, note duration, and track humidity to optimize next cycle. Healthy scales.
Connect to a BLE device and read its Battery Service characteristic. See the charge level in a gauge.
List all resources loaded by the current page and their detailed timing breakdown. In‑browser waterfall.
Create promises that resolve or reject after a delay. See state changes and chain .then/.catch. Debug async code.
Paste your CSS and see rules sorted by specificity. Find overrides and potential collisions. Understand your cascade.
Paste your stylesheet and get a clean list of all custom properties defined under :root. Copy the whole block. Local analysis.
Schedule tasks with user‑visible, user‑blocking, or background priority. See execution order and delays. Modern web perf.
Enter a URL and instantly generate a PDF version using the browser's print-to-pdf engine. Private, no upload.
See your device's battery level, charging status, and discharge time using the Battery Status API. Fun utility.
Convert English sea yarns into pirate lingo. Arrr‑matey generator. Perfect for September 19th.
Upload any picture and instantly get a 5‑color palette. Useful for UI design themes. Canvas‑based extraction.
Enter a URL and instantly generate a PDF version using the browser's print-to-pdf engine. Private, no upload.
Manipulate CSS values as typed objects using attributeStyleMap. Convert between CSSUnitValue, CSSMathSum, etc. Futuristic CSS‑in‑JS.
See the current state of a Service Worker for your page: installing, waiting, active. Unregister or skip waiting. Developer utility.
Paste a raw server log snippet and see a structured table with IP, method, URL, and status. Quick audit.