Twitter Card Previewer - Online See How Tweets Render
Enter a URL and fetch its Twitter card meta tags. See a live preview of how the tweet will appear. Debug social sharing.
UD5 Toolkit
Enter a URL and fetch its Twitter card meta tags. See a live preview of how the tweet will appear. Debug social sharing.
Crop any photo to the exact aspect ratio needed for TikTok, LinkedIn feed, or YouTube shorts. Download optimized image.
Paste multiple HTML snippets (header, footer) and a main content, then combine them into a single preview. Static site helper.
Enter a URL and fetch its text/background colors to perform a bulk contrast check. See warnings for WCAG violations.
Create a realistic‑looking fake tweet with any name, handle, text, likes, and retweets. Just for laughs. All local canvas.
Type directly into a contenteditable div with real‑time CSS filters, shadows, and colors. Download as HTML. Fun demo.
Create shareable quote images. Choose background gradient or photo, add text, and download as PNG. Fully local design tool.
Simulate a PWA receiving shared text, links, and images. Test the Web Share Target API without a server.
Add web content to the device’s content index (like Google Discover). See the indexed items and delete them.
Paste or write a CSS gradient value and instantly see the rendered output. Debug and iterate on gradients quickly. Local preview.
Test the Content Indexing API to add a page to the device's content feed. See how your PWA integrates with the OS.
Convert titles and sentences into clean URL slugs. Handles special characters, spaces, and case. Essential for CMS users and developers creating SEO-friendly links.
Generate a random, generic positive testimonial for product mockups. 'Great product! Changed my life.' Realistic filler.
Test the Web Share API by sharing text, links, and files directly from the browser. Check compatibility and see example code.
Enter a URL and get a one‑page report of titles, description, headings, image alts, and broken links. All from browser.
Select a story theme, input nouns, verbs, etc., and generate a hilarious story. No ads.
Apply a simple aging effect to a portrait: add wrinkles and grey hair. Just for laughs. Canvas manipulation.
Trace the edges of an uploaded image and create a glowing neon SVG effect. Adjust glow color and thickness. Download SVG.
Compare text‑rendering: auto, optimizeSpeed, optimizeLegibility, geometricPrecision. See kerning and ligature changes live.
Turn your message into a scenic mountain emoji art panel. Choose different landscapes. Copy and paste anywhere.
Apply a ripped or torn paper edge to one side of your image. Adjust intensity and style. Download PNG.
Keep a virtual pet alive by feeding, playing, and cleaning. Its state persists in localStorage. Come back or it gets sad.
Drag a slider to compare your original image with a compressed version (e.g., WebP). See the quality difference and file size savings.
Analyze text for keyword frequency and density. Highlights over-optimized terms. Perfect for content writers and SEO editors. Entirely browser-based.
Paste any article and get a list of the most relevant keywords using a simple TF‑IDF‑like model. Skip stop words. All local.
Write whatever is on your mind with auto-save. No formatting, no judgment. Data stays in browser.
Design a realistic neon sign text with multiple layers of glow. Copy the CSS and HTML. Perfect for headers.
Watch for updates to aria‑live regions and log what a screen reader would announce. Debug live regions.
Record a short audio or video snippet and get a shareable link (stored locally in browser, no server). For quick feedback.
Generate a unique geometric or pixel-art avatar from a random seed. Download as PNG. Perfect for default user icons. No upload.
Social Post Previewer
See how your link looks on Facebook, LinkedIn, and Twitter before you share.
Frequently Asked Questions
og:title,og:description, andog:imagetags in your page's<head>. If those are missing, it falls back to your page's<title>and the first large image it finds. Always define og:tags to control your link preview.og:imageURL is broken, the server blocks social media crawlers, or the image format is unsupported. Use absolute URLs and test with this tool. You can also clear the platform’s cache using their debugging tools (e.g., Facebook Sharing Debugger).og:titleis used by Facebook, LinkedIn, and other platforms. Twitter has its own card meta tags (twitter:title,twitter:description,twitter:image). However, if Twitter tags are absent, Twitter falls back to Open Graph tags. For best cross‑platform compatibility, include both.