100% in-browser
Web & SEO Tools
Free web and SEO tools to build and optimize your site — generate meta tags, Open Graph, robots.txt, sitemaps, JSON-LD and UTM links, preview search snippets, and check keyword density.
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Meta Tag Generator
Generate SEO meta tags for your page head, including title, description and robots.
ogOpen Graph Generator
Generate Open Graph and Twitter Card meta tags with a live social share preview.
🤖robots.txt Generator
Build a valid robots.txt with allow, disallow, crawl-delay and sitemap rules.
utmUTM Link Builder
Build campaign tracking URLs with encoded UTM parameters for analytics.
{}JSON-LD Schema Generator
Generate schema.org JSON-LD structured data for articles, products and more.
@Email Normalizer
Normalize email addresses, removing Gmail dots and +tags, then dedupe the list.
⊞WiFi QR Code
Generate a scannable QR code that lets phones join your WiFi network instantly.
✉Mailto Link Builder
Build a mailto: link with recipients, subject and body, properly URL-encoded.
⧉Image srcset Generator
Generate a responsive <img> tag with srcset and sizes from a path and width list.
🛡CSP Header Builder
Build a Content-Security-Policy header by filling in common directives.
🤖<Meta Robots Tag Generator
Generate a robots meta tag to control how search engines crawl and index a page.
hlHreflang Tag Generator
Generate hreflang alternate link tags from a list of language and URL pairs.
✍Email Signature Generator
Create a clean table-based HTML email signature with a live preview.
🗺XML Sitemap Generator
Generate a valid XML sitemap from a list of URLs with optional changefreq and priority.
↪htaccess Redirect Generator
Generate Apache .htaccess redirect rules from a list of from and to pairs.
🖼?Social Media Image Sizes
Searchable reference of recommended image dimensions for major social platforms.
DNSDNS Record Generator
Build a DNS record in zone-file format from a record type, host, value and TTL.
%kwKeyword Density Checker
Analyze keyword frequency and density for SEO, ignoring common stop words.
🔍Google SERP Preview
Preview how your page appears in Google search results with length checks.
XSocial Character Counter
Count characters against X/Twitter and other social platform limits live.
#Hashtag Generator
Turn keywords and phrases into ready-to-paste hashtags with case options.
▶YouTube Thumbnail Grabber
Get thumbnail image URLs from any YouTube link or video ID.
relCanonical Tag Generator
Generate a canonical link tag and og:url meta from a page URL.
hdrHTTP Header Parser
Parse raw HTTP headers into a readable name and value table.
🎙Microphone Test
Check that your mic works with a live level meter, waveform and record-and-playback test.
📷Webcam Test
Preview your camera with resolution, frame-rate and device readouts, plus a mirror toggle and snapshot.