1
Pick the SEO tool you need: meta tag generator, sitemap builder, robots.txt, schema markup, keyword density, SERP preview.
2
Paste your URL, page content, or keywords into the input.
3
Configure the relevant settings — sitemap depth, schema type, robots rules, target locale.
4
Copy the output (HTML, XML, JSON-LD) and paste it into your site — or download as a file.

Key features

Meta tag generator with title, description, OpenGraph, Twitter Card, and canonical
JSON-LD schema builder: Article, Product, FAQ, Breadcrumb, Organization, LocalBusiness
XML sitemap generator with priority, changefreq, and image/video sitemap support
robots.txt builder with disallow patterns, sitemap reference, and Googlebot/Bingbot rules
Keyword density analyzer, SERP snippet preview, and Core Web Vitals checker
Free with no API keys — Tools Lab PRO covers the full on-page SEO workflow

Frequently asked questions

What's the ideal length for a meta description?

Aim for 140–160 characters. Google truncates around 160 on desktop and 120 on mobile. Include your primary keyword in the first half.

How long should my SEO title tag be?

Keep it under 60 characters (about 580 px on desktop). Lead with the keyword, follow with the brand: 'Primary Keyword | Brand'.

Do I need OpenGraph and Twitter Card tags?

Yes — they control how your link previews look on Facebook, LinkedIn, Slack, iMessage, Discord, and Twitter/X. Our generator outputs both.

What schema markup boosts SEO the most?

Article, FAQ, HowTo, Product, Breadcrumb, and Organization unlock rich results in Google Search and improve CTR by 15–30%.

How do I add FAQ schema to my page?

Use the FAQ Schema Generator — paste questions and answers, copy the JSON-LD, and add it inside a <script type='application/ld+json'> tag in the page <head>.

Will my XML sitemap be accepted by Google?

Yes — we output the standard sitemaps.org format with optional image/video extensions. Submit it via Google Search Console for fastest indexing.

How often should I update my sitemap?

Regenerate whenever you add or change pages. Set lastmod accurately — Google uses it to decide what to recrawl.

What's a good keyword density?

There's no fixed target — write naturally. Tools Lab PRO flags over-optimization (>3% for short queries) and under-optimization (no occurrence) so you can balance.

How do I write a robots.txt that blocks AI crawlers?

Add 'User-agent: GPTBot' / 'CCBot' / 'ClaudeBot' / 'Google-Extended' with 'Disallow: /'. Our robots.txt builder includes presets for the major AI crawlers.

Can I preview how my page looks in Google search?

SERP Preview shows desktop and mobile snippets with truncation warnings, favicon, and breadcrumb URL formatting — exactly as Google renders it.

What's the difference between canonical and 301 redirect?

301 permanently moves a URL. Canonical tells Google which version to index when duplicate content is intentional (e.g., print versions, tracking parameters).

How do I do an on-page SEO audit?

Run On-Page SEO Checker — it audits title, description, H1, image alt text, internal links, schema, mobile-friendliness, and Core Web Vitals.

Will Tools Lab PRO submit my sitemap to Google for me?

We don't push directly. Use Google Search Console's Sitemaps section to add the XML URL we generate — Google indexes from there.

Are these SEO tools really free?

Yes — no signup, no API keys, no monthly limits. Tools Lab PRO is funded by optional Pro features, not by gating SEO work.

Do I need a Google Search Console account to use these tools?

No. Generators and analyzers work standalone. We recommend GSC for tracking impressions/clicks once your site is live.