Web & SEO

Web and SEO utilities: meta tag previews, structured-data validators, sitemap parsers.

All Web & SEO

• QR Code Generator Generate QR codes for URLs, text, wifi, contact cards. Download as PNG or SVG.
• Meta Tag / OG Card Previewer See how your page looks when shared on Twitter, Facebook, LinkedIn, Slack.
• URL Slug Generator Convert any title into a clean URL slug. Handles unicode, custom separators.
• Sitemap.xml Validator Validate a sitemap.xml: schema, URL count, lastmod dates, priority ranges.
• SVG Optimizer / Minifier Strip metadata, simplify paths, minify SVG markup. Often 50-70% smaller.
• Favicon Generator Upload an image, get favicon.ico + every size for iOS, Android, browser tabs.
• RSS / Atom Feed Validator Validate RSS 2.0 and Atom feeds. Catches missing required fields.
• OpenAPI Spec Viewer Paste an OpenAPI/Swagger spec, get interactive docs without any setup.
• URL Parser & Builder Decompose a URL into protocol/host/path/query. Build URLs from parts.
• robots.txt Tester Test whether a URL is allowed for a given user agent against a robots.txt.
• Schema.org JSON-LD Generator Build Article, Product, FAQ, Breadcrumb, Organization JSON-LD blocks.
• Image Compressor — In-Browser Compress JPG / PNG / WebP entirely in browser. Quality slider, no upload.
• robots.txt Generator Build a robots.txt with allow/disallow rules per user agent. Sitemap declarations.
• Mermaid Live Preview Write Mermaid diagrams (flowcharts, sequence, ERD), see them rendered live.
• SVG Path Inspector Parse and visualize SVG <path> d attributes. See each command, point, control point.
• Lorem Picsum URL Builder Build placeholder image URLs. Dimensions, blur, grayscale, seed.
• UTM URL Builder Build UTM-tagged URLs for Google Analytics campaign tracking.
• Image Dimensions Reader Drop any image; see width, height, aspect ratio, file size, type. No upload.
• Image Metadata Stripper (EXIF) Remove EXIF, GPS, camera data from JPG/PNG. Browser-only — image never uploads.
• OpenGraph Image Builder Build 1200×630 share images in your browser. Background, title, subtitle, logo. Download PNG.
• Image Resizer (Browser-only) Resize JPG / PNG / WebP images in your browser. No uploads, full quality control.
• Image Format Converter (JPG ↔ PNG ↔ WebP ↔ AVIF) Convert images between JPG, PNG, WebP, AVIF in your browser. No upload, lossless option.
• Image Cropper (Canvas) Crop images in your browser with a draggable selection. Save to JPG / PNG / WebP.
• Image Placeholder Generator Generate placeholder images at any size with custom color and text overlay. Browser-only.
• User Agent Parser Parse a User-Agent string into browser, version, OS, device. Useful for log analysis.
• User Agent String Generator Generate User-Agent strings for browsers, mobile devices, and bots. For testing only.
• QR Code Reader (Upload or Camera) Read QR codes from an uploaded image or live camera. Browser-only — no upload to a server.
• SVG to PNG Converter (Custom Size) Convert SVG to PNG at any resolution. Preserves transparency. Browser-only, batch supported.
• PNG to ICO Favicon Converter Convert PNG images into multi-size .ico favicons. 16/32/48/64/128/256 in one file.
• WebP to PNG Converter Convert WebP images back to PNG. Preserves transparency. Browser-only.
• JPEG Quality Comparator (Side-by-Side) Compare a JPEG at multiple quality levels side-by-side. Find the sweet spot between size and visual quality.
• SVG Sprite / Icon Set Extractor Paste an SVG sprite or symbol set. Get a downloadable preview of every individual icon. Lucide, Heroicons, custom sprites.
• File Extension ↔ MIME Type Lookup Look up the MIME type for any file extension, or extensions for a MIME type. 1000+ entries indexed.