Emoji Version Detector - Online Check Unicode Support
See how your browser renders emojis from different Unicode versions. Detect gaps in your system's emoji font support.
UD5 Toolkit
Instantly check, preview, and download any website's favicon in all available sizes
We'll scan multiple sources including standard favicon.ico, Apple Touch Icons, and Google's favicon cache
favicon.ico – 16×16, 32×32 (classic format, max compatibility)favicon-32x32.png – 32×32 PNGfavicon-16x16.png – 16×16 PNGapple-touch-icon.png – 180×180 PNG (for iOS Safari, Android Chrome)icon-192x192.png – for PWA manifesticon-512x512.png – for PWA manifest/favicon.ico, /apple-touch-icon.png, and other common paths on the target domain.google.com/s2/favicons) to retrieve icons at 16px, 32px, 64px, 128px, and 256px sizes.<head> includes <link rel="icon" href="/favicon.ico">..ico or .png. Avoid .svg as the only favicon (Safari doesn't support it well).apple-touch-icon.png) is a larger icon (recommended 180×180 pixels) used when users add your website to their home screen on iOS devices (iPhone, iPad). It also appears in Safari's tab overview and Apple Watch. Yes, you absolutely need one. Without it, iOS uses a low-quality screenshot of your page, which looks unprofessional. Android Chrome also uses this icon for the "Add to Home Screen" prompt. Place a 180×180 PNG at your site root named apple-touch-icon.png and add the link tag for best results.
<head> section:
<link rel="icon" type="image/x-icon" href="/favicon.ico">
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
<link rel="manifest" href="/site.webmanifest">
Place the icon files in your website's root directory. For most CMS platforms (WordPress, Shopify, Wix), there are dedicated settings to upload your favicon without editing code.
<link rel="icon" type="image/svg+xml" href="/favicon.svg">. SVG favicons are resolution-independent and lightweight. However, Safari (both macOS and iOS) does not support SVG favicons as of 2024. Therefore, always provide a fallback .ico or .png favicon. The recommended approach: use an SVG as the primary icon with a PNG fallback using the sizes="any" attribute for the SVG link tag.
favicon.ico?v=2) to force cache refresh.
/assets/img/favicon.ico) specified in a <link> tag, our direct URL check might miss it. Google's cached service usually catches these cases.See how your browser renders emojis from different Unicode versions. Detect gaps in your system's emoji font support.
Enter an emoji or browse to see which Unicode version introduced it and whether older OS versions might fail.
Enter a URL and get a list of all images that fail to load (404, CORS). A simple asset audit tool. Runs in your browser.
Paste your email subject and body. The tool highlights common spam trigger words and gives a risk score. Improve inbox placement.
Load an image and see the exact events fired (load, error, abort). Monitor progress. Dev helper.
Convert between emoji characters and their shortcode representations (e.g., :tada: to 🎉). Supports Slack and GitHub styles.
View every standard emoji in a searchable grid. Hover to see a larger preview. Click to copy. Updated with Unicode 16.
Pick a color palette and the tool shows sample images that match it. Great for moodboard and brand inspiration. Static dataset.
Transform regular text into the mocking SpongeBob‑style alternating case. Copy and paste for hilarious effect.
Paste HTML code and extract all comments or remove them completely. See a list of comments found. Clean your markup.
Select a heading font and get recommended body font pairings. Live preview with sample text. Copy the CSS import links.
Drop files onto a zone and see a preview with name, size, and type. Copy the JavaScript pattern for your site.
See how to implement file upload progress using both fetch and XHR. Real‑time bar and code snippets for your project.
Quiz yourself on element symbols, names, and atomic numbers. Multiple modes: element to symbol, symbol to element. Score tracking. Great for chemistry students.
Start a fetch request and cancel it with AbortController. See how to implement request cancellation. Interactive.
Paste a list of words or lines and convert all to UPPERCASE or lowercase at once. Also supports title case.
Convert running shoe sizes between US (men/women), UK, EU, and centimeters. Also includes brand-specific fit notes (general guide).
Generate a printable pace band for ultra distances with mile/km splits and cumulative time. Adjust for terrain.
Type any character and see how it renders in different font stacks. Detect missing glyphs and fallback behavior.
Click to get a randomly generated, unique abstract icon (geometric pattern). Download as SVG. For placeholder avatars and designs.
Look at HTTP headers and JavaScript objects to guess which browser extensions might be installed. For awareness.
Enter a package name and version range to see all satisfying versions from the registry. Understand ^ and ~.
Check if an IBAN has the correct length and structure for its country. Early validation, no bank connection.
Enter a URL and see a nested list of all h1‑h6 tags. Check document structure for SEO and accessibility.
Drop an image that might have wrong extension and see its real format (JPEG, PNG, WebP) based on header bytes.
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.
Pick an emoji and convert it into a proper favicon .ico file for your website. No design skills needed. Instant download.
Paste your email body and subject, and get a spam score based on common trigger words and patterns. Improve your cold outreach.
Type a word to see all its homophones with definitions. Avoid embarrassing mistakes (their/there/they’re). Static dictionary.