GeoJSON Map Previewer - Online Render on Interactive Map
Paste GeoJSON and instantly see it drawn on a draggable map. Supports points, lines, and polygons. Local fetch of tiles.
UD5 Toolkit
Extract and inspect all meta tags, Open Graph, Twitter Cards, SEO data from any webpage. Simply enter the URL below.
https://Fetching page meta...
<meta name="robots"> tag tells search engine crawlers how to index or not index a page, and whether to follow links. Common values: index,follow (default), noindex, nofollow. Incorrect usage can accidentally hide pages from search results.<link rel="canonical"> tag indicates the preferred URL for content when several versions exist (e.g., duplicate pages). It helps prevent duplicate content issues and consolidates ranking signals to the canonical version.Paste GeoJSON and instantly see it drawn on a draggable map. Supports points, lines, and polygons. Local fetch of tiles.
Write a paint worklet in JavaScript and see it used as a CSS background instantly. Experiment with Houdini. Local.
Define the initial scroll position for a scroll container with scroll‑start. Test with and without snapping. New feature.
Apply a Proxy to an object and see the get/set traps log fired in real time. Understand metaprogramming. Local.
Draw shapes and experiment with globalCompositeOperation. See Porter‑Duff operators in action. Great for game devs.
Register and apply a custom paint worklet to draw a background pattern dynamically. Write the paint function in the browser.
Add many complex CSS styles and measure frames per second. Isolate expensive properties. Practical performance lab.
Render the classic Stanford Bunny with a basic WebGPU pipeline. Rotate and zoom. Check if your browser supports WebGPU.
Create a custom soap recipe by selecting oils and their percentages. Get precise lye and water amounts. Safety warnings included.
A beautiful full‑screen drawing canvas with variable brush sizes, colors, and an eraser. Export your sketch as PNG. All data stays local.
Help the bird fly through pipes without touching them. Click or tap to flap. Track your high score in localStorage. Classic time‑waster.
Adjust root, margin, and threshold. See a live log of intersection events as you scroll. Debug lazy loading.
Create a simple tessellation by deforming a square or triangle and repeating it across the canvas. Hypnotic patterns.
Divide pooled tips among staff based on hours worked or weighted percentages. Ensures fair distribution. Instant local calculation.
Move your mouse or finger to create colorful paint splatters on canvas. Great stress reliever. Download as PNG.
Drop a PDF and count the total words, characters, and pages. Text extraction is done locally. Privacy‑friendly.
Paste an image from your clipboard directly into the page (Ctrl+V) and extract its color palette. No file dialog needed.
Paste a direct link to an image and get its 5 dominant colors with hex codes. No upload, uses canvas with CORS proxy.
Paste your article and see a table of the most frequent words with their density percentages. Help avoid keyword stuffing. Local.
Build a proper <meta name='viewport'> tag with width, initial‑scale, and user‑scalable options. Avoid common mobile rendering issues.
Paste an SVG file and extract all path data. Clean and copy individual d strings. For icon manipulation.
Upload an animated GIF and download every single frame as a separate PNG image. See frame delays and total count. Entirely local.
Enter a URL and see a nested list of all h1‑h6 tags. Check document structure for SEO and accessibility.
Enter a URL and see its favicon at all standard sizes. Check if it's properly defined. SEO basic check.
Trace the full redirect path of a URL. See every hop, status code, and final destination. Detect broken chains.
Paste a robots.txt file and validate its syntax. See if a specific user‑agent can access a path. Essential for webmasters.
Enter an image URL and extract its dominant color palette. No download needed. Fast visual analysis.
Fetch a website's CSS and extract :root custom properties (‑‑color) to reveal its design token palette. For learning and inspiration.
Extract selectable text from a PDF using the browser's built‑in PDF rendering. Copy or download as TXT. No upload, fully private.
A tiny tool that hooks into the console and lets you export all messages to a file. Helpful for non‑technical bug reporting.